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- ;; Calculator for GNU Emacs, part II [calc-vec.el]
- ;; Copyright (C) 1990, 1991, 1992, 1993 Free Software Foundation, Inc.
- ;; Written by Dave Gillespie, daveg@synaptics.com.
-
- ;; This file is part of GNU Emacs.
-
- ;; GNU Emacs is distributed in the hope that it will be useful,
- ;; but WITHOUT ANY WARRANTY. No author or distributor
- ;; accepts responsibility to anyone for the consequences of using it
- ;; or for whether it serves any particular purpose or works at all,
- ;; unless he says so in writing. Refer to the GNU Emacs General Public
- ;; License for full details.
-
- ;; Everyone is granted permission to copy, modify and redistribute
- ;; GNU Emacs, but only under the conditions described in the
- ;; GNU Emacs General Public License. A copy of this license is
- ;; supposed to have been given to you along with GNU Emacs so you
- ;; can know your rights and responsibilities. It should be in a
- ;; file named COPYING. Among other things, the copyright notice
- ;; and this notice must be preserved on all copies.
-
-
-
- ;; This file is autoloaded from calc-ext.el.
- (require 'calc-ext)
-
- (require 'calc-macs)
-
- (defun calc-Need-calc-vec () nil)
-
-
- (defun calc-display-strings (n)
- (interactive "P")
- (calc-wrapper
- (message (if (calc-change-mode 'calc-display-strings n t t)
- "Displaying vectors of integers as quoted strings."
- "Displaying vectors of integers normally.")))
- )
-
-
- (defun calc-pack (n)
- (interactive "P")
- (calc-wrapper
- (let* ((nn (if n 1 2))
- (mode (if n (prefix-numeric-value n) (calc-top-n 1)))
- (mode (if (and (Math-vectorp mode) (cdr mode)) (cdr mode)
- (if (integerp mode) mode
- (error "Packing mode must be an integer or vector of integers"))))
- (num (calc-pack-size mode))
- (items (calc-top-list num nn)))
- (calc-enter-result (+ nn num -1) "pack" (calc-pack-items mode items))))
- )
-
- (defun calc-pack-size (mode)
- (cond ((consp mode)
- (let ((size 1))
- (while mode
- (or (integerp (car mode)) (error "Vector of integers expected"))
- (setq size (* size (calc-pack-size (car mode)))
- mode (cdr mode)))
- (if (= size 0)
- (error "Zero dimensions not allowed")
- size)))
- ((>= mode 0) mode)
- (t (or (cdr (assq mode '((-3 . 3) (-13 . 1) (-14 . 3) (-15 . 6))))
- 2)))
- )
-
- (defun calc-pack-items (mode items)
- (cond ((consp mode)
- (if (cdr mode)
- (let* ((size (calc-pack-size (cdr mode)))
- (len (length items))
- (new nil)
- p row)
- (while (> len 0)
- (setq p (nthcdr (1- size) items)
- row items
- items (cdr p)
- len (- len size))
- (setcdr p nil)
- (setq new (cons (calc-pack-items (cdr mode) row) new)))
- (calc-pack-items (car mode) (nreverse new)))
- (calc-pack-items (car mode) items)))
- ((>= mode 0)
- (cons 'vec items))
- ((= mode -3)
- (if (and (math-objvecp (car items))
- (math-objvecp (nth 1 items))
- (math-objvecp (nth 2 items)))
- (if (and (math-num-integerp (car items))
- (math-num-integerp (nth 1 items)))
- (if (math-realp (nth 2 items))
- (cons 'hms items)
- (error "Seconds must be real"))
- (error "Hours and minutes must be integers"))
- (math-normalize (list '+
- (list '+
- (if (eq calc-angle-mode 'rad)
- (list '* (car items)
- '(hms 1 0 0))
- (car items))
- (list '* (nth 1 items) '(hms 0 1 0)))
- (list '* (nth 2 items) '(hms 0 0 1))))))
- ((= mode -13)
- (if (math-realp (car items))
- (cons 'date items)
- (if (eq (car-safe (car items)) 'date)
- (car items)
- (if (math-objvecp (car items))
- (error "Date value must be real")
- (cons 'calcFunc-date items)))))
- ((memq mode '(-14 -15))
- (let ((p items))
- (while (and p (math-objvecp (car p)))
- (or (math-integerp (car p))
- (error "Components must be integers"))
- (setq p (cdr p)))
- (if p
- (cons 'calcFunc-date items)
- (list 'date (math-dt-to-date items)))))
- ((or (eq (car-safe (car items)) 'vec)
- (eq (car-safe (nth 1 items)) 'vec))
- (let* ((x (car items))
- (vx (eq (car-safe x) 'vec))
- (y (nth 1 items))
- (vy (eq (car-safe y) 'vec))
- (z nil)
- (n (1- (length (if vx x y)))))
- (and vx vy
- (/= n (1- (length y)))
- (error "Vectors must be the same length"))
- (while (>= (setq n (1- n)) 0)
- (setq z (cons (calc-pack-items
- mode
- (list (if vx (car (setq x (cdr x))) x)
- (if vy (car (setq y (cdr y))) y)))
- z)))
- (cons 'vec (nreverse z))))
- ((= mode -1)
- (if (and (math-realp (car items)) (math-realp (nth 1 items)))
- (cons 'cplx items)
- (if (and (math-objectp (car items)) (math-objectp (nth 1 items)))
- (error "Components must be real"))
- (math-normalize (list '+ (car items)
- (list '* (nth 1 items) '(cplx 0 1))))))
- ((= mode -2)
- (if (and (math-realp (car items)) (math-anglep (nth 1 items)))
- (cons 'polar items)
- (if (and (math-objectp (car items)) (math-objectp (nth 1 items)))
- (error "Components must be real"))
- (math-normalize (list '* (car items)
- (if (math-anglep (nth 1 items))
- (list 'polar 1 (nth 1 items))
- (list 'calcFunc-exp
- (list '*
- (math-to-radians-2
- (nth 1 items))
- (list 'polar
- 1
- (math-quarter-circle
- nil)))))))))
- ((= mode -4)
- (let ((x (car items))
- (sigma (nth 1 items)))
- (if (or (math-scalarp x) (not (math-objvecp x)))
- (if (or (math-anglep sigma) (not (math-objvecp sigma)))
- (math-make-sdev x sigma)
- (error "Error component must be real"))
- (error "Mean component must be real or complex"))))
- ((= mode -5)
- (let ((a (car items))
- (m (nth 1 items)))
- (if (and (math-anglep a) (math-anglep m))
- (if (math-posp m)
- (math-make-mod a m)
- (error "Modulus must be positive"))
- (if (and (math-objectp a) (math-objectp m))
- (error "Components must be real"))
- (list 'calcFunc-makemod a m))))
- ((memq mode '(-6 -7 -8 -9))
- (let ((lo (car items))
- (hi (nth 1 items)))
- (if (and (or (math-anglep lo) (eq (car lo) 'date)
- (not (math-objvecp lo)))
- (or (math-anglep hi) (eq (car hi) 'date)
- (not (math-objvecp hi))))
- (math-make-intv (+ mode 9) lo hi)
- (error "Components must be real"))))
- ((eq mode -10)
- (if (math-zerop (nth 1 items))
- (error "Denominator must not be zero")
- (if (and (math-integerp (car items)) (math-integerp (nth 1 items)))
- (math-normalize (cons 'frac items))
- (if (and (math-objectp (car items)) (math-objectp (nth 1 items)))
- (error "Components must be integers"))
- (cons 'calcFunc-fdiv items))))
- ((memq mode '(-11 -12))
- (if (and (math-realp (car items)) (math-integerp (nth 1 items)))
- (calcFunc-scf (math-float (car items)) (nth 1 items))
- (if (and (math-objectp (car items)) (math-objectp (nth 1 items)))
- (error "Components must be integers"))
- (math-normalize
- (list 'calcFunc-scf
- (list 'calcFunc-float (car items))
- (nth 1 items)))))
- (t
- (error "Invalid packing mode: %d" mode)))
- )
-
- (defun calc-unpack (mode)
- (interactive "P")
- (calc-wrapper
- (let ((calc-unpack-with-type t))
- (calc-pop-push-record-list 1 "unpk" (calc-unpack-item
- (and mode
- (prefix-numeric-value mode))
- (calc-top)))))
- )
-
- (defun calc-unpack-type (item)
- (cond ((eq (car-safe item) 'vec)
- (1- (length item)))
- ((eq (car-safe item) 'intv)
- (- (nth 1 item) 9))
- (t
- (or (cdr (assq (car-safe item) '( (cplx . -1) (polar . -2)
- (hms . -3) (sdev . -4) (mod . -5)
- (frac . -10) (float . -11)
- (date . -13) )))
- (error "Argument must be a composite object"))))
- )
-
- (defun calc-unpack-item (mode item)
- (cond ((not mode)
- (if (or (and (not (memq (car-safe item) '(frac float cplx polar vec
- hms date sdev mod
- intv)))
- (math-objvecp item))
- (eq (car-safe item) 'var))
- (error "Argument must be a composite object or function call"))
- (if (eq (car item) 'intv)
- (cdr (cdr item))
- (cdr item)))
- ((> mode 0)
- (let ((dims nil)
- type new row)
- (setq item (list item))
- (while (> mode 0)
- (setq type (calc-unpack-type (car item))
- dims (cons type dims)
- new (calc-unpack-item nil (car item)))
- (while (setq item (cdr item))
- (or (= (calc-unpack-type (car item)) type)
- (error "Inconsistent types or dimensions in vector elements"))
- (setq new (append new (calc-unpack-item nil (car item)))))
- (setq item new
- mode (1- mode)))
- (if (cdr dims) (setq dims (list (cons 'vec (nreverse dims)))))
- (cond ((eq calc-unpack-with-type 'pair)
- (list (car dims) (cons 'vec item)))
- (calc-unpack-with-type
- (append item dims))
- (t item))))
- ((eq calc-unpack-with-type 'pair)
- (let ((calc-unpack-with-type nil))
- (list mode (cons 'vec (calc-unpack-item mode item)))))
- ((= mode -3)
- (if (eq (car-safe item) 'hms)
- (cdr item)
- (error "Argument must be an HMS form")))
- ((= mode -13)
- (if (eq (car-safe item) 'date)
- (cdr item)
- (error "Argument must be a date form")))
- ((= mode -14)
- (if (eq (car-safe item) 'date)
- (math-date-to-dt (math-floor (nth 1 item)))
- (error "Argument must be a date form")))
- ((= mode -15)
- (if (eq (car-safe item) 'date)
- (append (math-date-to-dt (nth 1 item))
- (and (not (math-integerp (nth 1 item)))
- (list 0 0 0)))
- (error "Argument must be a date form")))
- ((eq (car-safe item) 'vec)
- (let ((x nil)
- (y nil)
- res)
- (while (setq item (cdr item))
- (setq res (calc-unpack-item mode (car item))
- x (cons (car res) x)
- y (cons (nth 1 res) y)))
- (list (cons 'vec (nreverse x))
- (cons 'vec (nreverse y)))))
- ((= mode -1)
- (if (eq (car-safe item) 'cplx)
- (cdr item)
- (if (eq (car-safe item) 'polar)
- (cdr (math-complex item))
- (if (Math-realp item)
- (list item 0)
- (error "Argument must be a complex number")))))
- ((= mode -2)
- (if (or (memq (car-safe item) '(cplx polar))
- (Math-realp item))
- (cdr (math-polar item))
- (error "Argument must be a complex number")))
- ((= mode -4)
- (if (eq (car-safe item) 'sdev)
- (cdr item)
- (list item 0)))
- ((= mode -5)
- (if (eq (car-safe item) 'mod)
- (cdr item)
- (error "Argument must be a modulo form")))
- ((memq mode '(-6 -7 -8 -9))
- (if (eq (car-safe item) 'intv)
- (cdr (cdr item))
- (list item item)))
- ((= mode -10)
- (if (eq (car-safe item) 'frac)
- (cdr item)
- (if (Math-integerp item)
- (list item 1)
- (error "Argument must be a rational number"))))
- ((= mode -11)
- (if (eq (car-safe item) 'float)
- (list (nth 1 item) (math-normalize (nth 2 item)))
- (error "Expected a floating-point number")))
- ((= mode -12)
- (if (eq (car-safe item) 'float)
- (list (calcFunc-mant item) (calcFunc-xpon item))
- (error "Expected a floating-point number")))
- (t
- (error "Invalid unpacking mode: %d" mode)))
- )
- (setq calc-unpack-with-type nil)
-
- (defun calc-diag (n)
- (interactive "P")
- (calc-wrapper
- (calc-enter-result 1 "diag" (if n
- (list 'calcFunc-diag (calc-top-n 1)
- (prefix-numeric-value n))
- (list 'calcFunc-diag (calc-top-n 1)))))
- )
-
- (defun calc-ident (n)
- (interactive "NDimension of identity matrix = ")
- (calc-wrapper
- (calc-enter-result 0 "idn" (if (eq n 0)
- '(calcFunc-idn 1)
- (list 'calcFunc-idn 1
- (prefix-numeric-value n)))))
- )
-
- (defun calc-index (n &optional stack)
- (interactive "NSize of vector = \nP")
- (calc-wrapper
- (if (consp stack)
- (calc-enter-result 3 "indx" (cons 'calcFunc-index (calc-top-list-n 3)))
- (calc-enter-result 0 "indx" (list 'calcFunc-index
- (prefix-numeric-value n)))))
- )
-
- (defun calc-build-vector (n)
- (interactive "NSize of vector = ")
- (calc-wrapper
- (calc-enter-result 1 "bldv" (list 'calcFunc-cvec
- (calc-top-n 1)
- (prefix-numeric-value n))))
- )
-
- (defun calc-cons (arg)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-hyperbolic)
- (calc-binary-op "rcns" 'calcFunc-rcons arg)
- (calc-binary-op "cons" 'calcFunc-cons arg)))
- )
-
-
- (defun calc-head (arg)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-inverse)
- (if (calc-is-hyperbolic)
- (calc-unary-op "rtai" 'calcFunc-rtail arg)
- (calc-unary-op "tail" 'calcFunc-tail arg))
- (if (calc-is-hyperbolic)
- (calc-unary-op "rhed" 'calcFunc-rhead arg)
- (calc-unary-op "head" 'calcFunc-head arg))))
- )
-
- (defun calc-tail (arg)
- (interactive "P")
- (calc-invert-func)
- (calc-head arg)
- )
-
- (defun calc-vlength (arg)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-hyperbolic)
- (calc-unary-op "dims" 'calcFunc-mdims arg)
- (calc-unary-op "len" 'calcFunc-vlen arg)))
- )
-
- (defun calc-arrange-vector (n)
- (interactive "NNumber of columns = ")
- (calc-wrapper
- (calc-enter-result 1 "arng" (list 'calcFunc-arrange (calc-top-n 1)
- (prefix-numeric-value n))))
- )
-
- (defun calc-vector-find (arg)
- (interactive "P")
- (calc-wrapper
- (let ((func (cons 'calcFunc-find (calc-top-list-n 2))))
- (calc-enter-result
- 2 "find"
- (if arg (append func (list (prefix-numeric-value arg))) func))))
- )
-
- (defun calc-subvector ()
- (interactive)
- (calc-wrapper
- (if (calc-is-inverse)
- (calc-enter-result 3 "rsvc" (cons 'calcFunc-rsubvec
- (calc-top-list-n 3)))
- (calc-enter-result 3 "svec" (cons 'calcFunc-subvec (calc-top-list-n 3)))))
- )
-
- (defun calc-reverse-vector (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "rev" 'calcFunc-rev arg))
- )
-
- (defun calc-mask-vector (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "vmsk" 'calcFunc-vmask arg))
- )
-
- (defun calc-expand-vector (arg)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-hyperbolic)
- (calc-enter-result 3 "vexp" (cons 'calcFunc-vexp (calc-top-list-n 3)))
- (calc-binary-op "vexp" 'calcFunc-vexp arg)))
- )
-
- (defun calc-sort ()
- (interactive)
- (calc-slow-wrapper
- (if (calc-is-inverse)
- (calc-enter-result 1 "rsrt" (list 'calcFunc-rsort (calc-top-n 1)))
- (calc-enter-result 1 "sort" (list 'calcFunc-sort (calc-top-n 1)))))
- )
-
- (defun calc-grade ()
- (interactive)
- (calc-slow-wrapper
- (if (calc-is-inverse)
- (calc-enter-result 1 "rgrd" (list 'calcFunc-rgrade (calc-top-n 1)))
- (calc-enter-result 1 "grad" (list 'calcFunc-grade (calc-top-n 1)))))
- )
-
- (defun calc-histogram (n)
- (interactive "NNumber of bins: ")
- (calc-slow-wrapper
- (if calc-hyperbolic-flag
- (calc-enter-result 2 "hist" (list 'calcFunc-histogram
- (calc-top-n 2)
- (calc-top-n 1)
- (prefix-numeric-value n)))
- (calc-enter-result 1 "hist" (list 'calcFunc-histogram
- (calc-top-n 1)
- (prefix-numeric-value n)))))
- )
-
- (defun calc-transpose (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "trn" 'calcFunc-trn arg))
- )
-
- (defun calc-conj-transpose (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "ctrn" 'calcFunc-ctrn arg))
- )
-
- (defun calc-cross (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "cros" 'calcFunc-cross arg))
- )
-
- (defun calc-remove-duplicates (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "rdup" 'calcFunc-rdup arg))
- )
-
- (defun calc-set-union (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "unio" 'calcFunc-vunion arg '(vec) 'calcFunc-rdup))
- )
-
- (defun calc-set-intersect (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "intr" 'calcFunc-vint arg '(vec) 'calcFunc-rdup))
- )
-
- (defun calc-set-difference (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "diff" 'calcFunc-vdiff arg '(vec) 'calcFunc-rdup))
- )
-
- (defun calc-set-xor (arg)
- (interactive "P")
- (calc-wrapper
- (calc-binary-op "xor" 'calcFunc-vxor arg '(vec) 'calcFunc-rdup))
- )
-
- (defun calc-set-complement (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "cmpl" 'calcFunc-vcompl arg))
- )
-
- (defun calc-set-floor (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "vflr" 'calcFunc-vfloor arg))
- )
-
- (defun calc-set-enumerate (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "enum" 'calcFunc-venum arg))
- )
-
- (defun calc-set-span (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "span" 'calcFunc-vspan arg))
- )
-
- (defun calc-set-cardinality (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "card" 'calcFunc-vcard arg))
- )
-
- (defun calc-unpack-bits (arg)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-inverse)
- (calc-unary-op "bpck" 'calcFunc-vpack arg)
- (calc-unary-op "bupk" 'calcFunc-vunpack arg)))
- )
-
- (defun calc-pack-bits (arg)
- (interactive "P")
- (calc-invert-func)
- (calc-unpack-bits arg)
- )
-
-
- (defun calc-rnorm (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "rnrm" 'calcFunc-rnorm arg))
- )
-
- (defun calc-cnorm (arg)
- (interactive "P")
- (calc-wrapper
- (calc-unary-op "cnrm" 'calcFunc-cnorm arg))
- )
-
- (defun calc-mrow (n &optional nn)
- (interactive "NRow number: \nP")
- (calc-wrapper
- (if (consp nn)
- (calc-enter-result 2 "mrow" (cons 'calcFunc-mrow (calc-top-list-n 2)))
- (setq n (prefix-numeric-value n))
- (if (= n 0)
- (calc-enter-result 1 "getd" (list 'calcFunc-getdiag (calc-top-n 1)))
- (if (< n 0)
- (calc-enter-result 1 "rrow" (list 'calcFunc-mrrow
- (calc-top-n 1) (- n)))
- (calc-enter-result 1 "mrow" (list 'calcFunc-mrow
- (calc-top-n 1) n))))))
- )
-
- (defun calc-mcol (n &optional nn)
- (interactive "NColumn number: \nP")
- (calc-wrapper
- (if (consp nn)
- (calc-enter-result 2 "mcol" (cons 'calcFunc-mcol (calc-top-list-n 2)))
- (setq n (prefix-numeric-value n))
- (if (= n 0)
- (calc-enter-result 1 "getd" (list 'calcFunc-getdiag (calc-top-n 1)))
- (if (< n 0)
- (calc-enter-result 1 "rcol" (list 'calcFunc-mrcol
- (calc-top-n 1) (- n)))
- (calc-enter-result 1 "mcol" (list 'calcFunc-mcol
- (calc-top-n 1) n))))))
- )
-
-
- ;;;; Vectors.
-
- (defun calcFunc-mdims (m)
- (or (math-vectorp m)
- (math-reject-arg m 'vectorp))
- (cons 'vec (math-mat-dimens m))
- )
-
-
- ;;; Apply a function elementwise to vector A. [V X V; N X N] [Public]
- (defun math-map-vec (f a)
- (if (math-vectorp a)
- (cons 'vec (mapcar f (cdr a)))
- (funcall f a))
- )
-
- (defun math-dimension-error ()
- (calc-record-why "*Dimension error")
- (signal 'wrong-type-argument nil)
- )
-
-
- ;;; Build a vector out of a list of objects. [Public]
- (defun calcFunc-vec (&rest objs)
- (cons 'vec objs)
- )
-
-
- ;;; Build a constant vector or matrix. [Public]
- (defun calcFunc-cvec (obj &rest dims)
- (math-make-vec-dimen obj dims)
- )
-
- (defun math-make-vec-dimen (obj dims)
- (if dims
- (if (natnump (car dims))
- (if (or (cdr dims)
- (not (math-numberp obj)))
- (cons 'vec (copy-sequence
- (make-list (car dims)
- (math-make-vec-dimen obj (cdr dims)))))
- (cons 'vec (make-list (car dims) obj)))
- (math-reject-arg (car dims) 'fixnatnump))
- obj)
- )
-
- (defun calcFunc-head (vec)
- (if (and (Math-vectorp vec)
- (cdr vec))
- (nth 1 vec)
- (calc-record-why 'vectorp vec)
- (list 'calcFunc-head vec))
- )
-
- (defun calcFunc-tail (vec)
- (if (and (Math-vectorp vec)
- (cdr vec))
- (cons 'vec (cdr (cdr vec)))
- (calc-record-why 'vectorp vec)
- (list 'calcFunc-tail vec))
- )
-
- (defun calcFunc-cons (head tail)
- (if (Math-vectorp tail)
- (cons 'vec (cons head (cdr tail)))
- (calc-record-why 'vectorp tail)
- (list 'calcFunc-cons head tail))
- )
-
- (defun calcFunc-rhead (vec)
- (if (and (Math-vectorp vec)
- (cdr vec))
- (let ((vec (copy-sequence vec)))
- (setcdr (nthcdr (- (length vec) 2) vec) nil)
- vec)
- (calc-record-why 'vectorp vec)
- (list 'calcFunc-rhead vec))
- )
-
- (defun calcFunc-rtail (vec)
- (if (and (Math-vectorp vec)
- (cdr vec))
- (nth (1- (length vec)) vec)
- (calc-record-why 'vectorp vec)
- (list 'calcFunc-rtail vec))
- )
-
- (defun calcFunc-rcons (head tail)
- (if (Math-vectorp head)
- (append head (list tail))
- (calc-record-why 'vectorp head)
- (list 'calcFunc-rcons head tail))
- )
-
-
-
- ;;; Apply a function elementwise to vectors A and B. [O X O O] [Public]
- (defun math-map-vec-2 (f a b)
- (if (math-vectorp a)
- (if (math-vectorp b)
- (let ((v nil))
- (while (setq a (cdr a))
- (or (setq b (cdr b))
- (math-dimension-error))
- (setq v (cons (funcall f (car a) (car b)) v)))
- (if a (math-dimension-error))
- (cons 'vec (nreverse v)))
- (let ((v nil))
- (while (setq a (cdr a))
- (setq v (cons (funcall f (car a) b) v)))
- (cons 'vec (nreverse v))))
- (if (math-vectorp b)
- (let ((v nil))
- (while (setq b (cdr b))
- (setq v (cons (funcall f a (car b)) v)))
- (cons 'vec (nreverse v)))
- (funcall f a b)))
- )
-
-
-
- ;;; "Reduce" a function over a vector (left-associatively). [O X V] [Public]
- (defun math-reduce-vec (f a)
- (if (math-vectorp a)
- (if (cdr a)
- (let ((accum (car (setq a (cdr a)))))
- (while (setq a (cdr a))
- (setq accum (funcall f accum (car a))))
- accum)
- 0)
- a)
- )
-
- ;;; Reduce a function over the columns of matrix A. [V X V] [Public]
- (defun math-reduce-cols (f a)
- (if (math-matrixp a)
- (cons 'vec (math-reduce-cols-col-step f (cdr a) 1 (length (nth 1 a))))
- a)
- )
-
- (defun math-reduce-cols-col-step (f a col cols)
- (and (< col cols)
- (cons (math-reduce-cols-row-step f (nth col (car a)) col (cdr a))
- (math-reduce-cols-col-step f a (1+ col) cols)))
- )
-
- (defun math-reduce-cols-row-step (f tot col a)
- (if a
- (math-reduce-cols-row-step f
- (funcall f tot (nth col (car a)))
- col
- (cdr a))
- tot)
- )
-
-
-
- (defun math-dot-product (a b)
- (if (setq a (cdr a) b (cdr b))
- (let ((accum (math-mul (car a) (car b))))
- (while (setq a (cdr a) b (cdr b))
- (setq accum (math-add accum (math-mul (car a) (car b)))))
- accum)
- 0)
- )
-
-
- ;;; Return the number of elements in vector V. [Public]
- (defun calcFunc-vlen (v)
- (if (math-vectorp v)
- (1- (length v))
- (if (math-objectp v)
- 0
- (list 'calcFunc-vlen v)))
- )
-
- ;;; Get the Nth row of a matrix.
- (defun calcFunc-mrow (mat n) ; [Public]
- (if (Math-vectorp n)
- (math-map-vec (function (lambda (x) (calcFunc-mrow mat x))) n)
- (if (and (eq (car-safe n) 'intv) (math-constp n))
- (calcFunc-subvec mat
- (math-add (nth 2 n) (if (memq (nth 1 n) '(2 3)) 0 1))
- (math-add (nth 3 n) (if (memq (nth 1 n) '(1 3)) 1 0)))
- (or (and (integerp (setq n (math-check-integer n)))
- (> n 0))
- (math-reject-arg n 'fixposintp))
- (or (Math-vectorp mat)
- (math-reject-arg mat 'vectorp))
- (or (nth n mat)
- (math-reject-arg n "*Index out of range"))))
- )
-
- (defun calcFunc-subscr (mat n &optional m)
- (setq mat (calcFunc-mrow mat n))
- (if m
- (if (math-num-integerp n)
- (calcFunc-mrow mat m)
- (calcFunc-mcol mat m))
- mat)
- )
-
- ;;; Get the Nth column of a matrix.
- (defun math-mat-col (mat n)
- (cons 'vec (mapcar (function (lambda (x) (elt x n))) (cdr mat)))
- )
-
- (defun calcFunc-mcol (mat n) ; [Public]
- (if (Math-vectorp n)
- (calcFunc-trn
- (math-map-vec (function (lambda (x) (calcFunc-mcol mat x))) n))
- (if (and (eq (car-safe n) 'intv) (math-constp n))
- (if (math-matrixp mat)
- (math-map-vec (function (lambda (x) (calcFunc-mrow x n))) mat)
- (calcFunc-mrow mat n))
- (or (and (integerp (setq n (math-check-integer n)))
- (> n 0))
- (math-reject-arg n 'fixposintp))
- (or (Math-vectorp mat)
- (math-reject-arg mat 'vectorp))
- (or (if (math-matrixp mat)
- (and (< n (length (nth 1 mat)))
- (math-mat-col mat n))
- (nth n mat))
- (math-reject-arg n "*Index out of range"))))
- )
-
- ;;; Remove the Nth row from a matrix.
- (defun math-mat-less-row (mat n)
- (if (<= n 0)
- (cdr mat)
- (cons (car mat)
- (math-mat-less-row (cdr mat) (1- n))))
- )
-
- (defun calcFunc-mrrow (mat n) ; [Public]
- (and (integerp (setq n (math-check-integer n)))
- (> n 0)
- (< n (length mat))
- (math-mat-less-row mat n))
- )
-
- ;;; Remove the Nth column from a matrix.
- (defun math-mat-less-col (mat n)
- (cons 'vec (mapcar (function (lambda (x) (math-mat-less-row x n)))
- (cdr mat)))
- )
-
- (defun calcFunc-mrcol (mat n) ; [Public]
- (and (integerp (setq n (math-check-integer n)))
- (> n 0)
- (if (math-matrixp mat)
- (and (< n (length (nth 1 mat)))
- (math-mat-less-col mat n))
- (math-mat-less-row mat n)))
- )
-
- (defun calcFunc-getdiag (mat) ; [Public]
- (if (math-square-matrixp mat)
- (cons 'vec (math-get-diag-step (cdr mat) 1))
- (calc-record-why 'square-matrixp mat)
- (list 'calcFunc-getdiag mat))
- )
-
- (defun math-get-diag-step (row n)
- (and row
- (cons (nth n (car row))
- (math-get-diag-step (cdr row) (1+ n))))
- )
-
- (defun math-transpose (mat) ; [Public]
- (let ((m nil)
- (col (length (nth 1 mat))))
- (while (> (setq col (1- col)) 0)
- (setq m (cons (math-mat-col mat col) m)))
- (cons 'vec m))
- )
-
- (defun calcFunc-trn (mat)
- (if (math-vectorp mat)
- (if (math-matrixp mat)
- (math-transpose mat)
- (math-col-matrix mat))
- (if (math-numberp mat)
- mat
- (math-reject-arg mat 'matrixp)))
- )
-
- (defun calcFunc-ctrn (mat)
- (calcFunc-conj (calcFunc-trn mat))
- )
-
- (defun calcFunc-pack (mode els)
- (or (Math-vectorp els) (math-reject-arg els 'vectorp))
- (if (and (Math-vectorp mode) (cdr mode))
- (setq mode (cdr mode))
- (or (integerp mode) (math-reject-arg mode 'fixnump)))
- (condition-case err
- (if (= (calc-pack-size mode) (1- (length els)))
- (calc-pack-items mode (cdr els))
- (math-reject-arg els "*Wrong number of elements"))
- (error (math-reject-arg els (nth 1 err))))
- )
-
- (defun calcFunc-unpack (mode thing)
- (or (integerp mode) (math-reject-arg mode 'fixnump))
- (condition-case err
- (cons 'vec (calc-unpack-item mode thing))
- (error (math-reject-arg thing (nth 1 err))))
- )
-
- (defun calcFunc-unpackt (mode thing)
- (let ((calc-unpack-with-type 'pair))
- (calcFunc-unpack mode thing))
- )
-
- (defun calcFunc-arrange (vec cols) ; [Public]
- (setq cols (math-check-fixnum cols t))
- (if (math-vectorp vec)
- (let* ((flat (math-flatten-vector vec))
- (mat (list 'vec))
- next)
- (if (<= cols 0)
- (nconc mat flat)
- (while (>= (length flat) cols)
- (setq next (nthcdr cols flat))
- (setcdr (nthcdr (1- cols) flat) nil)
- (setq mat (nconc mat (list (cons 'vec flat)))
- flat next))
- (if flat
- (setq mat (nconc mat (list (cons 'vec flat)))))
- mat)))
- )
-
- (defun math-flatten-vector (vec) ; [L V]
- (if (math-vectorp vec)
- (apply 'append (mapcar 'math-flatten-vector (cdr vec)))
- (list vec))
- )
-
- (defun calcFunc-vconcat (a b)
- (math-normalize (list '| a b))
- )
-
- (defun calcFunc-vconcatrev (a b)
- (math-normalize (list '| b a))
- )
-
- (defun calcFunc-append (v1 v2)
- (if (and (math-vectorp v1) (math-vectorp v2))
- (append v1 (cdr v2))
- (list 'calcFunc-append v1 v2))
- )
-
- (defun calcFunc-appendrev (v1 v2)
- (calcFunc-append v2 v1)
- )
-
-
- ;;; Copy a matrix. [Public]
- (defun math-copy-matrix (m)
- (if (math-vectorp (nth 1 m))
- (cons 'vec (mapcar 'copy-sequence (cdr m)))
- (copy-sequence m))
- )
-
- ;;; Convert a scalar or vector into an NxN diagonal matrix. [Public]
- (defun calcFunc-diag (a &optional n)
- (and n (not (integerp n))
- (setq n (math-check-fixnum n)))
- (if (math-vectorp a)
- (if (and n (/= (length a) (1+ n)))
- (list 'calcFunc-diag a n)
- (if (math-matrixp a)
- (if (and n (/= (length (elt a 1)) (1+ n)))
- (list 'calcFunc-diag a n)
- a)
- (cons 'vec (math-diag-step (cdr a) 0 (1- (length a))))))
- (if n
- (cons 'vec (math-diag-step (make-list n a) 0 n))
- (list 'calcFunc-diag a)))
- )
-
- (defun calcFunc-idn (a &optional n)
- (if n
- (if (math-vectorp a)
- (math-reject-arg a 'numberp)
- (calcFunc-diag a n))
- (if (integerp calc-matrix-mode)
- (calcFunc-idn a calc-matrix-mode)
- (list 'calcFunc-idn a)))
- )
-
- (defun math-mimic-ident (a m)
- (if (math-square-matrixp m)
- (calcFunc-idn a (1- (length m)))
- (if (math-vectorp m)
- (if (math-zerop a)
- (cons 'vec (mapcar (function (lambda (x)
- (if (math-vectorp x)
- (math-mimic-ident a x)
- a)))
- (cdr m)))
- (math-dimension-error))
- (calcFunc-idn a)))
- )
-
- (defun math-diag-step (a n m)
- (if (< n m)
- (cons (cons 'vec
- (nconc (make-list n 0)
- (cons (car a)
- (make-list (1- (- m n)) 0))))
- (math-diag-step (cdr a) (1+ n) m))
- nil)
- )
-
- ;;; Create a vector of consecutive integers. [Public]
- (defun calcFunc-index (n &optional start incr)
- (if (math-messy-integerp n)
- (math-float (calcFunc-index (math-trunc n) start incr))
- (and (not (integerp n))
- (setq n (math-check-fixnum n)))
- (let ((vec nil))
- (if start
- (progn
- (if (>= n 0)
- (while (>= (setq n (1- n)) 0)
- (setq vec (cons start vec)
- start (math-add start (or incr 1))))
- (while (<= (setq n (1+ n)) 0)
- (setq vec (cons start vec)
- start (math-mul start (or incr 2)))))
- (setq vec (nreverse vec)))
- (if (>= n 0)
- (while (> n 0)
- (setq vec (cons n vec)
- n (1- n)))
- (let ((i -1))
- (while (>= i n)
- (setq vec (cons i vec)
- i (1- i))))))
- (cons 'vec vec)))
- )
-
- ;;; Find an element in a vector.
- (defun calcFunc-find (vec x &optional start)
- (setq start (if start (math-check-fixnum start t) 1))
- (if (< start 1) (math-reject-arg start 'posp))
- (setq vec (nthcdr start vec))
- (let ((n start))
- (while (and vec (not (Math-equal x (car vec))))
- (setq n (1+ n)
- vec (cdr vec)))
- (if vec n 0))
- )
-
- ;;; Return a subvector of a vector.
- (defun calcFunc-subvec (vec start &optional end)
- (setq start (math-check-fixnum start t)
- end (math-check-fixnum (or end 0) t))
- (or (math-vectorp vec) (math-reject-arg vec 'vectorp))
- (let ((len (1- (length vec))))
- (if (<= start 0)
- (setq start (+ len start 1)))
- (if (<= end 0)
- (setq end (+ len end 1)))
- (if (or (> start len)
- (<= end start))
- '(vec)
- (setq vec (nthcdr start vec))
- (if (<= end len)
- (let ((chop (nthcdr (- end start 1) (setq vec (copy-sequence vec)))))
- (setcdr chop nil)))
- (cons 'vec vec)))
- )
-
- ;;; Remove a subvector from a vector.
- (defun calcFunc-rsubvec (vec start &optional end)
- (setq start (math-check-fixnum start t)
- end (math-check-fixnum (or end 0) t))
- (or (math-vectorp vec) (math-reject-arg vec 'vectorp))
- (let ((len (1- (length vec))))
- (if (<= start 0)
- (setq start (+ len start 1)))
- (if (<= end 0)
- (setq end (+ len end 1)))
- (if (or (> start len)
- (<= end start))
- vec
- (let ((tail (nthcdr end vec))
- (chop (nthcdr (1- start) (setq vec (copy-sequence vec)))))
- (setcdr chop nil)
- (append vec tail))))
- )
-
- ;;; Reverse the order of the elements of a vector.
- (defun calcFunc-rev (vec)
- (if (math-vectorp vec)
- (cons 'vec (reverse (cdr vec)))
- (math-reject-arg vec 'vectorp))
- )
-
- ;;; Compress a vector according to a mask vector.
- (defun calcFunc-vmask (mask vec)
- (if (math-numberp mask)
- (if (math-zerop mask)
- '(vec)
- vec)
- (or (math-vectorp mask) (math-reject-arg mask 'vectorp))
- (or (math-constp mask) (math-reject-arg mask 'constp))
- (or (math-vectorp vec) (math-reject-arg vec 'vectorp))
- (or (= (length mask) (length vec)) (math-dimension-error))
- (let ((new nil))
- (while (setq mask (cdr mask) vec (cdr vec))
- (or (math-zerop (car mask))
- (setq new (cons (car vec) new))))
- (cons 'vec (nreverse new))))
- )
-
- ;;; Expand a vector according to a mask vector.
- (defun calcFunc-vexp (mask vec &optional filler)
- (or (math-vectorp mask) (math-reject-arg mask 'vectorp))
- (or (math-constp mask) (math-reject-arg mask 'constp))
- (or (math-vectorp vec) (math-reject-arg vec 'vectorp))
- (let ((new nil)
- (fvec (and filler (math-vectorp filler))))
- (while (setq mask (cdr mask))
- (if (math-zerop (car mask))
- (setq new (cons (or (if fvec
- (car (setq filler (cdr filler)))
- filler)
- (car mask)) new))
- (setq vec (cdr vec)
- new (cons (or (car vec) (car mask)) new))))
- (cons 'vec (nreverse new)))
- )
-
-
- ;;; Compute the row and column norms of a vector or matrix. [Public]
- (defun calcFunc-rnorm (a)
- (if (and (Math-vectorp a)
- (math-constp a))
- (if (math-matrixp a)
- (math-reduce-vec 'math-max (math-map-vec 'calcFunc-cnorm a))
- (math-reduce-vec 'math-max (math-map-vec 'math-abs a)))
- (calc-record-why 'vectorp a)
- (list 'calcFunc-rnorm a))
- )
-
- (defun calcFunc-cnorm (a)
- (if (and (Math-vectorp a)
- (math-constp a))
- (if (math-matrixp a)
- (math-reduce-vec 'math-max
- (math-reduce-cols 'math-add-abs a))
- (math-reduce-vec 'math-add-abs a))
- (calc-record-why 'vectorp a)
- (list 'calcFunc-cnorm a))
- )
-
- (defun math-add-abs (a b)
- (math-add (math-abs a) (math-abs b))
- )
-
-
- ;;; Sort the elements of a vector into increasing order.
- (defun calcFunc-sort (vec) ; [Public]
- (if (math-vectorp vec)
- (cons 'vec (sort (copy-sequence (cdr vec)) 'math-beforep))
- (math-reject-arg vec 'vectorp))
- )
-
- (defun calcFunc-rsort (vec) ; [Public]
- (if (math-vectorp vec)
- (cons 'vec (nreverse (sort (copy-sequence (cdr vec)) 'math-beforep)))
- (math-reject-arg vec 'vectorp))
- )
-
- (defun calcFunc-grade (grade-vec)
- (if (math-vectorp grade-vec)
- (let* ((len (1- (length grade-vec))))
- (cons 'vec (sort (cdr (calcFunc-index len)) 'math-grade-beforep)))
- (math-reject-arg grade-vec 'vectorp))
- )
-
- (defun calcFunc-rgrade (grade-vec)
- (if (math-vectorp grade-vec)
- (let* ((len (1- (length grade-vec))))
- (cons 'vec (nreverse (sort (cdr (calcFunc-index len))
- 'math-grade-beforep))))
- (math-reject-arg grade-vec 'vectorp))
- )
-
- (defun math-grade-beforep (i j)
- (math-beforep (nth i grade-vec) (nth j grade-vec))
- )
-
-
- ;;; Compile a histogram of data from a vector.
- (defun calcFunc-histogram (vec wts &optional n)
- (or n (setq n wts wts 1))
- (or (Math-vectorp vec)
- (math-reject-arg vec 'vectorp))
- (if (Math-vectorp wts)
- (or (= (length vec) (length wts))
- (math-dimension-error)))
- (or (natnump n)
- (math-reject-arg n 'fixnatnump))
- (let ((res (make-vector n 0))
- (vp vec)
- (wvec (Math-vectorp wts))
- (wp wts)
- bin)
- (while (setq vp (cdr vp))
- (setq bin (car vp))
- (or (natnump bin)
- (setq bin (math-floor bin)))
- (and (natnump bin)
- (< bin n)
- (aset res bin (math-add (aref res bin)
- (if wvec (car (setq wp (cdr wp))) wts)))))
- (cons 'vec (append res nil)))
- )
-
-
- ;;; Set operations.
-
- (defun calcFunc-vunion (a b)
- (if (Math-objectp a)
- (setq a (list 'vec a))
- (or (math-vectorp a) (math-reject-arg a 'vectorp)))
- (if (Math-objectp b)
- (setq b (list b))
- (or (math-vectorp b) (math-reject-arg b 'vectorp))
- (setq b (cdr b)))
- (calcFunc-rdup (append a b))
- )
-
- (defun calcFunc-vint (a b)
- (if (and (math-simple-set a) (math-simple-set b))
- (progn
- (setq a (cdr (calcFunc-rdup a)))
- (setq b (cdr (calcFunc-rdup b)))
- (let ((vec (list 'vec)))
- (while (and a b)
- (if (math-beforep (car a) (car b))
- (setq a (cdr a))
- (if (Math-equal (car a) (car b))
- (setq vec (cons (car a) vec)
- a (cdr a)))
- (setq b (cdr b))))
- (nreverse vec)))
- (calcFunc-vcompl (calcFunc-vunion (calcFunc-vcompl a)
- (calcFunc-vcompl b))))
- )
-
- (defun calcFunc-vdiff (a b)
- (if (and (math-simple-set a) (math-simple-set b))
- (progn
- (setq a (cdr (calcFunc-rdup a)))
- (setq b (cdr (calcFunc-rdup b)))
- (let ((vec (list 'vec)))
- (while a
- (while (and b (math-beforep (car b) (car a)))
- (setq b (cdr b)))
- (if (and b (Math-equal (car a) (car b)))
- (setq a (cdr a)
- b (cdr b))
- (setq vec (cons (car a) vec)
- a (cdr a))))
- (nreverse vec)))
- (calcFunc-vcompl (calcFunc-vunion (calcFunc-vcompl a) b)))
- )
-
- (defun calcFunc-vxor (a b)
- (if (and (math-simple-set a) (math-simple-set b))
- (progn
- (setq a (cdr (calcFunc-rdup a)))
- (setq b (cdr (calcFunc-rdup b)))
- (let ((vec (list 'vec)))
- (while (or a b)
- (if (and a
- (or (not b)
- (math-beforep (car a) (car b))))
- (setq vec (cons (car a) vec)
- a (cdr a))
- (if (and a (Math-equal (car a) (car b)))
- (setq a (cdr a))
- (setq vec (cons (car b) vec)))
- (setq b (cdr b))))
- (nreverse vec)))
- (let ((ca (calcFunc-vcompl a))
- (cb (calcFunc-vcompl b)))
- (calcFunc-vunion (calcFunc-vcompl (calcFunc-vunion ca b))
- (calcFunc-vcompl (calcFunc-vunion a cb)))))
- )
-
- (defun calcFunc-vcompl (a)
- (setq a (math-prepare-set a))
- (let ((vec (list 'vec))
- (prev '(neg (var inf var-inf)))
- (closed 2))
- (while (setq a (cdr a))
- (or (and (equal (nth 2 (car a)) '(neg (var inf var-inf)))
- (memq (nth 1 (car a)) '(2 3)))
- (setq vec (cons (list 'intv
- (+ closed
- (if (memq (nth 1 (car a)) '(0 1)) 1 0))
- prev
- (nth 2 (car a)))
- vec)))
- (setq prev (nth 3 (car a))
- closed (if (memq (nth 1 (car a)) '(0 2)) 2 0)))
- (or (and (equal prev '(var inf var-inf))
- (= closed 0))
- (setq vec (cons (list 'intv (+ closed 1)
- prev '(var inf var-inf))
- vec)))
- (math-clean-set (nreverse vec)))
- )
-
- (defun calcFunc-vspan (a)
- (setq a (math-prepare-set a))
- (if (cdr a)
- (let ((last (nth (1- (length a)) a)))
- (math-make-intv (+ (logand (nth 1 (nth 1 a)) 2)
- (logand (nth 1 last) 1))
- (nth 2 (nth 1 a))
- (nth 3 last)))
- '(intv 2 0 0))
- )
-
- (defun calcFunc-vfloor (a &optional always-vec)
- (setq a (math-prepare-set a))
- (let ((vec (list 'vec)) (p a) (prev nil) b mask)
- (while (setq p (cdr p))
- (setq mask (nth 1 (car p))
- a (nth 2 (car p))
- b (nth 3 (car p)))
- (and (memq mask '(0 1))
- (not (math-infinitep a))
- (setq mask (logior mask 2))
- (math-num-integerp a)
- (setq a (math-add a 1)))
- (setq a (math-ceiling a))
- (and (memq mask '(0 2))
- (not (math-infinitep b))
- (setq mask (logior mask 1))
- (math-num-integerp b)
- (setq b (math-sub b 1)))
- (setq b (math-floor b))
- (if (and prev (Math-equal (math-sub a 1) (nth 3 prev)))
- (setcar (nthcdr 3 prev) b)
- (or (Math-lessp b a)
- (setq vec (cons (setq prev (list 'intv mask a b)) vec)))))
- (setq vec (nreverse vec))
- (math-clean-set vec always-vec))
- )
-
- (defun calcFunc-vcard (a)
- (setq a (calcFunc-vfloor a t))
- (or (math-constp a) (math-reject-arg a "*Set must be finite"))
- (let ((count 0))
- (while (setq a (cdr a))
- (if (eq (car-safe (car a)) 'intv)
- (setq count (math-add count (math-sub (nth 3 (car a))
- (nth 2 (car a))))))
- (setq count (math-add count 1)))
- count)
- )
-
- (defun calcFunc-venum (a)
- (setq a (calcFunc-vfloor a t))
- (or (math-constp a) (math-reject-arg a "*Set must be finite"))
- (let ((p a) next)
- (while (cdr p)
- (setq next (cdr p))
- (if (eq (car-safe (nth 1 p)) 'intv)
- (setcdr p (nconc (cdr (calcFunc-index (math-add
- (math-sub (nth 3 (nth 1 p))
- (nth 2 (nth 1 p)))
- 1)
- (nth 2 (nth 1 p))))
- (cdr (cdr p)))))
- (setq p next))
- a)
- )
-
- (defun calcFunc-vpack (a)
- (setq a (calcFunc-vfloor a t))
- (if (and (cdr a)
- (math-negp (if (eq (car-safe (nth 1 a)) 'intv)
- (nth 2 (nth 1 a))
- (nth 1 a))))
- (math-reject-arg (nth 1 a) 'posp))
- (let ((accum 0))
- (while (setq a (cdr a))
- (if (eq (car-safe (car a)) 'intv)
- (if (equal (nth 3 (car a)) '(var inf var-inf))
- (setq accum (math-sub accum
- (math-power-of-2 (nth 2 (car a)))))
- (setq accum (math-add accum
- (math-sub
- (math-power-of-2 (1+ (nth 3 (car a))))
- (math-power-of-2 (nth 2 (car a)))))))
- (setq accum (math-add accum (math-power-of-2 (car a))))))
- accum)
- )
-
- (defun calcFunc-vunpack (a &optional w)
- (or (math-num-integerp a) (math-reject-arg a 'integerp))
- (if w (setq a (math-clip a w)))
- (if (math-messy-integerp a) (setq a (math-trunc a)))
- (let* ((calc-number-radix 2)
- (neg (math-negp a))
- (aa (if neg (math-sub -1 a) a))
- (str (if (eq aa 0)
- ""
- (if (consp aa)
- (math-format-bignum-binary (cdr aa))
- (math-format-binary aa))))
- (zero (if neg ?1 ?0))
- (one (if neg ?0 ?1))
- (len (length str))
- (vec (list 'vec))
- (pos (1- len)) pos2)
- (while (>= pos 0)
- (if (eq (aref str pos) zero)
- (setq pos (1- pos))
- (setq pos2 pos)
- (while (and (>= pos 0) (eq (aref str pos) one))
- (setq pos (1- pos)))
- (setq vec (cons (if (= pos (1- pos2))
- (- len pos2 1)
- (list 'intv 3 (- len pos2 1) (- len pos 2)))
- vec))))
- (if neg
- (setq vec (cons (list 'intv 2 len '(var inf var-inf)) vec)))
- (math-clean-set (nreverse vec)))
- )
-
- (defun calcFunc-rdup (a)
- (if (math-simple-set a)
- (progn
- (and (Math-objectp a) (setq a (list 'vec a)))
- (or (math-vectorp a) (math-reject-arg a 'vectorp))
- (setq a (sort (copy-sequence (cdr a)) 'math-beforep))
- (let ((p a))
- (while (cdr p)
- (if (Math-equal (car p) (nth 1 p))
- (setcdr p (cdr (cdr p)))
- (setq p (cdr p)))))
- (cons 'vec a))
- (math-clean-set (math-prepare-set a)))
- )
-
- (defun math-prepare-set (a)
- (if (Math-objectp a)
- (setq a (list 'vec a))
- (or (math-vectorp a) (math-reject-arg a 'vectorp))
- (setq a (cons 'vec (sort (copy-sequence (cdr a)) 'math-beforep))))
- (let ((p a) res)
-
- ;; Convert all elements to non-empty intervals.
- (while (cdr p)
- (if (eq (car-safe (nth 1 p)) 'intv)
- (if (math-intv-constp (nth 1 p))
- (if (and (memq (nth 1 (nth 1 p)) '(0 1 2))
- (Math-equal (nth 2 (nth 1 p)) (nth 3 (nth 1 p))))
- (setcdr p (cdr (cdr p)))
- (setq p (cdr p)))
- (math-reject-arg (nth 1 p) 'constp))
- (or (Math-anglep (nth 1 p))
- (eq (car (nth 1 p)) 'date)
- (equal (nth 1 p) '(var inf var-inf))
- (equal (nth 1 p) '(neg (var inf var-inf)))
- (math-reject-arg (nth 1 p) 'realp))
- (setcar (cdr p) (list 'intv 3 (nth 1 p) (nth 1 p)))
- (setq p (cdr p))))
-
- ;; Combine redundant intervals.
- (setq p a)
- (while (cdr (cdr p))
- (if (or (memq (setq res (math-compare (nth 3 (nth 1 p))
- (nth 2 (nth 2 p))))
- '(-1 2))
- (and (eq res 0)
- (memq (nth 1 (nth 1 p)) '(0 2))
- (memq (nth 1 (nth 2 p)) '(0 1))))
- (setq p (cdr p))
- (setq res (math-compare (nth 3 (nth 1 p)) (nth 3 (nth 2 p))))
- (setcdr p (cons (list 'intv
- (+ (logand (logior (nth 1 (nth 1 p))
- (if (Math-equal
- (nth 2 (nth 1 p))
- (nth 2 (nth 2 p)))
- (nth 1 (nth 2 p))
- 0))
- 2)
- (logand (logior (if (memq res '(1 0 2))
- (nth 1 (nth 1 p)) 0)
- (if (memq res '(-1 0 2))
- (nth 1 (nth 2 p)) 0))
- 1))
- (nth 2 (nth 1 p))
- (if (eq res 1)
- (nth 3 (nth 1 p))
- (nth 3 (nth 2 p))))
- (cdr (cdr (cdr p))))))))
- a
- )
-
- (defun math-clean-set (a &optional always-vec)
- (let ((p a) res)
- (while (cdr p)
- (if (and (eq (car-safe (nth 1 p)) 'intv)
- (Math-equal (nth 2 (nth 1 p)) (nth 3 (nth 1 p))))
- (setcar (cdr p) (nth 2 (nth 1 p))))
- (setq p (cdr p)))
- (if (and (not (cdr (cdr a)))
- (eq (car-safe (nth 1 a)) 'intv)
- (not always-vec))
- (nth 1 a)
- a))
- )
-
- (defun math-simple-set (a)
- (or (and (Math-objectp a)
- (not (eq (car-safe a) 'intv)))
- (and (Math-vectorp a)
- (progn
- (while (and (setq a (cdr a))
- (not (eq (car-safe (car a)) 'intv))))
- (null a))))
- )
-
-
-
-
- ;;; Compute a right-handed vector cross product. [O O O] [Public]
- (defun calcFunc-cross (a b)
- (if (and (eq (car-safe a) 'vec)
- (= (length a) 4))
- (if (and (eq (car-safe b) 'vec)
- (= (length b) 4))
- (list 'vec
- (math-sub (math-mul (nth 2 a) (nth 3 b))
- (math-mul (nth 3 a) (nth 2 b)))
- (math-sub (math-mul (nth 3 a) (nth 1 b))
- (math-mul (nth 1 a) (nth 3 b)))
- (math-sub (math-mul (nth 1 a) (nth 2 b))
- (math-mul (nth 2 a) (nth 1 b))))
- (math-reject-arg b "*Three-vector expected"))
- (math-reject-arg a "*Three-vector expected"))
- )
-
-
-
-
-
- (defun math-read-brackets (space-sep close)
- (and space-sep (setq space-sep (not (math-check-for-commas))))
- (math-read-token)
- (while (eq exp-token 'space)
- (math-read-token))
- (if (or (equal exp-data close)
- (eq exp-token 'end))
- (progn
- (math-read-token)
- '(vec))
- (let ((save-exp-pos exp-pos)
- (save-exp-old-pos exp-old-pos)
- (save-exp-token exp-token)
- (save-exp-data exp-data)
- (vals (let ((exp-keep-spaces space-sep))
- (if (or (equal exp-data "\\dots")
- (equal exp-data "\\ldots"))
- '(vec (neg (var inf var-inf)))
- (catch 'syntax (math-read-vector))))))
- (if (stringp vals)
- (if space-sep
- (let ((error-exp-pos exp-pos)
- (error-exp-old-pos exp-old-pos)
- vals2)
- (setq exp-pos save-exp-pos
- exp-old-pos save-exp-old-pos
- exp-token save-exp-token
- exp-data save-exp-data)
- (let ((exp-keep-spaces nil))
- (setq vals2 (catch 'syntax (math-read-vector))))
- (if (and (not (stringp vals2))
- (or (assoc exp-data '(("\\ldots") ("\\dots") (";")))
- (equal exp-data close)
- (eq exp-token 'end)))
- (setq space-sep nil
- vals vals2)
- (setq exp-pos error-exp-pos
- exp-old-pos error-exp-old-pos)
- (throw 'syntax vals)))
- (throw 'syntax vals)))
- (if (or (equal exp-data "\\dots")
- (equal exp-data "\\ldots"))
- (progn
- (math-read-token)
- (setq vals (if (> (length vals) 2)
- (cons 'calcFunc-mul (cdr vals)) (nth 1 vals)))
- (let ((exp2 (if (or (equal exp-data close)
- (equal exp-data ")")
- (eq exp-token 'end))
- '(var inf var-inf)
- (math-read-expr-level 0))))
- (setq vals
- (list 'intv
- (if (equal exp-data ")") 2 3)
- vals
- exp2)))
- (if (not (or (equal exp-data close)
- (equal exp-data ")")
- (eq exp-token 'end)))
- (throw 'syntax "Expected `]'")))
- (if (equal exp-data ";")
- (let ((exp-keep-spaces space-sep))
- (setq vals (cons 'vec (math-read-matrix (list vals))))))
- (if (not (or (equal exp-data close)
- (eq exp-token 'end)))
- (throw 'syntax "Expected `]'")))
- (or (eq exp-token 'end)
- (math-read-token))
- vals))
- )
-
- (defun math-check-for-commas (&optional balancing)
- (let ((count 0)
- (pos (1- exp-pos)))
- (while (and (>= count 0)
- (setq pos (string-match
- (if balancing "[],[{}()<>]" "[],[{}()]")
- exp-str (1+ pos)))
- (or (/= (aref exp-str pos) ?,) (> count 0) balancing))
- (cond ((memq (aref exp-str pos) '(?\[ ?\{ ?\( ?\<))
- (setq count (1+ count)))
- ((memq (aref exp-str pos) '(?\] ?\} ?\) ?\>))
- (setq count (1- count)))))
- (if balancing
- pos
- (and pos (= (aref exp-str pos) ?,))))
- )
-
- (defun math-read-vector ()
- (let* ((val (list (math-read-expr-level 0)))
- (last val))
- (while (progn
- (while (eq exp-token 'space)
- (math-read-token))
- (and (not (eq exp-token 'end))
- (not (equal exp-data ";"))
- (not (equal exp-data close))
- (not (equal exp-data "\\dots"))
- (not (equal exp-data "\\ldots"))))
- (if (equal exp-data ",")
- (math-read-token))
- (while (eq exp-token 'space)
- (math-read-token))
- (let ((rest (list (math-read-expr-level 0))))
- (setcdr last rest)
- (setq last rest)))
- (cons 'vec val))
- )
-
- (defun math-read-matrix (mat)
- (while (equal exp-data ";")
- (math-read-token)
- (while (eq exp-token 'space)
- (math-read-token))
- (setq mat (nconc mat (list (math-read-vector)))))
- mat
- )
-
-