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- ;; Calculator for GNU Emacs, part II [calc-stuff.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-stuff () nil)
-
-
- (defun calc-num-prefix (n)
- "Use the number at the top of stack as the numeric prefix for the next command.
- With a prefix, push that prefix as a number onto the stack."
- (interactive "P")
- (calc-wrapper
- (if n
- (calc-enter-result 0 "" (prefix-numeric-value n))
- (let ((num (calc-top 1)))
- (if (math-messy-integerp num)
- (setq num (math-trunc num)))
- (or (integerp num)
- (error "Argument must be a small integer"))
- (calc-pop-stack 1)
- (setq prefix-arg num)
- (message "%d-" num)))) ; a (lame) simulation of the real thing...
- )
-
-
- (defun calc-more-recursion-depth (n)
- (interactive "P")
- (calc-wrapper
- (if (calc-is-inverse)
- (calc-less-recursion-depth n)
- (let ((n (if n (prefix-numeric-value n) 2)))
- (if (> n 1)
- (setq max-specpdl-size (* max-specpdl-size n)
- max-lisp-eval-depth (* max-lisp-eval-depth n))))
- (message "max-lisp-eval-depth is now %d" max-lisp-eval-depth)))
- )
-
- (defun calc-less-recursion-depth (n)
- (interactive "P")
- (let ((n (if n (prefix-numeric-value n) 2)))
- (if (> n 1)
- (setq max-specpdl-size
- (max (/ max-specpdl-size n) 600)
- max-lisp-eval-depth
- (max (/ max-lisp-eval-depth n) 200))))
- (message "max-lisp-eval-depth is now %d" max-lisp-eval-depth)
- )
-
-
- (defun calc-explain-why (why &optional more)
- (if (eq (car why) '*)
- (setq why (cdr why)))
- (let* ((pred (car why))
- (arg (nth 1 why))
- (msg (cond ((not pred) "Wrong type of argument")
- ((stringp pred) pred)
- ((eq pred 'integerp) "Integer expected")
- ((eq pred 'natnump)
- (if (and arg (Math-objvecp arg) (not (Math-integerp arg)))
- "Integer expected"
- "Nonnegative integer expected"))
- ((eq pred 'posintp)
- (if (and arg (Math-objvecp arg) (not (Math-integerp arg)))
- "Integer expected"
- "Positive integer expected"))
- ((eq pred 'fixnump)
- (if (and arg (Math-integerp arg))
- "Small integer expected"
- "Integer expected"))
- ((eq pred 'fixnatnump)
- (if (and arg (Math-natnump arg))
- "Small integer expected"
- (if (and arg (Math-objvecp arg)
- (not (Math-integerp arg)))
- "Integer expected"
- "Nonnegative integer expected")))
- ((eq pred 'fixposintp)
- (if (and arg (Math-integerp arg) (Math-posp arg))
- "Small integer expected"
- (if (and arg (Math-objvecp arg)
- (not (Math-integerp arg)))
- "Integer expected"
- "Positive integer expected")))
- ((eq pred 'posp) "Positive number expected")
- ((eq pred 'negp) "Negative number expected")
- ((eq pred 'nonzerop) "Nonzero number expected")
- ((eq pred 'realp) "Real number expected")
- ((eq pred 'anglep) "Real number expected")
- ((eq pred 'hmsp) "HMS form expected")
- ((eq pred 'datep)
- (if (and arg (Math-objectp arg)
- (not (Math-realp arg)))
- "Real number or date form expected"
- "Date form expected"))
- ((eq pred 'numberp) "Number expected")
- ((eq pred 'scalarp) "Number expected")
- ((eq pred 'vectorp) "Vector or matrix expected")
- ((eq pred 'numvecp) "Number or vector expected")
- ((eq pred 'matrixp) "Matrix expected")
- ((eq pred 'square-matrixp)
- (if (and arg (math-matrixp arg))
- "Square matrix expected"
- "Matrix expected"))
- ((eq pred 'objectp) "Number expected")
- ((eq pred 'constp) "Constant expected")
- ((eq pred 'range) "Argument out of range")
- (t (format "%s expected" pred))))
- (punc ": ")
- (calc-can-abbrev-vectors t))
- (while (setq why (cdr why))
- (and (car why)
- (setq msg (concat msg punc (if (stringp (car why))
- (car why)
- (math-format-flat-expr (car why) 0)))
- punc ", ")))
- (message "%s%s" msg (if more " [w=more]" "")))
- )
-
- (defun calc-why ()
- (interactive)
- (if (not (eq this-command last-command))
- (if (eq last-command calc-last-why-command)
- (setq calc-which-why (cdr calc-why))
- (setq calc-which-why calc-why)))
- (if calc-which-why
- (progn
- (calc-explain-why (car calc-which-why) (cdr calc-which-why))
- (setq calc-which-why (cdr calc-which-why)))
- (if calc-why
- (progn
- (message "(No further explanations available)")
- (setq calc-which-why calc-why))
- (message "No explanations available")))
- )
- (setq calc-which-why nil)
- (setq calc-last-why-command nil)
-
-
- (defun calc-version ()
- (interactive)
- (message "Calc %s, installed %s" calc-version calc-installed-date))
-
-
- (defun calc-flush-caches ()
- (interactive)
- (calc-wrapper
- (setq math-lud-cache nil
- math-log2-cache nil
- math-radix-digits-cache nil
- math-radix-float-cache-tag nil
- math-random-cache nil
- math-max-digits-cache nil
- math-checked-rewrites nil
- math-integral-cache nil
- math-units-table nil
- math-decls-cache-tag nil
- math-eval-rules-cache-tag t
- math-graph-var-cache nil
- math-graph-data-cache nil
- math-format-date-cache nil
- math-holidays-cache-tag t)
- (mapcar (function (lambda (x) (set x -100))) math-cache-list)
- (message "All internal calculator caches have been reset."))
- )
-
-
- ;;; Conversions.
-
- (defun calc-clean (n)
- (interactive "P")
- (calc-slow-wrapper
- (calc-with-default-simplification
- (let ((func (if (calc-is-hyperbolic) 'calcFunc-clean 'calcFunc-pclean)))
- (calc-enter-result 1 "cln"
- (if n
- (let ((n (prefix-numeric-value n)))
- (list func
- (calc-top-n 1)
- (if (<= n 0)
- (+ n calc-internal-prec)
- n)))
- (list func (calc-top-n 1)))))))
- )
-
- (defun calc-clean-num (num)
- (interactive "P")
- (calc-clean (- (if num
- (prefix-numeric-value num)
- (if (and (>= last-command-char ?0)
- (<= last-command-char ?9))
- (- last-command-char ?0)
- (error "Number required")))))
- )
-
-
- (defun calcFunc-clean (a &optional prec) ; [X X S] [Public]
- (if prec
- (cond ((Math-messy-integerp prec)
- (calcFunc-clean a (math-trunc prec)))
- ((or (not (integerp prec))
- (< prec 3))
- (calc-record-why "*Precision must be an integer 3 or above")
- (list 'calcFunc-clean a prec))
- ((not (Math-objvecp a))
- (list 'calcFunc-clean a prec))
- (t (let ((calc-internal-prec prec)
- (math-chopping-small t))
- (calcFunc-clean (math-normalize a)))))
- (cond ((eq (car-safe a) 'polar)
- (let ((theta (math-mod (nth 2 a)
- (if (eq calc-angle-mode 'rad)
- (math-two-pi)
- 360))))
- (math-neg
- (math-neg
- (math-normalize
- (list 'polar
- (calcFunc-clean (nth 1 a))
- (calcFunc-clean theta)))))))
- ((memq (car-safe a) '(vec date hms))
- (cons (car a) (mapcar 'calcFunc-clean (cdr a))))
- ((memq (car-safe a) '(cplx mod sdev intv))
- (math-normalize (cons (car a) (mapcar 'calcFunc-clean (cdr a)))))
- ((eq (car-safe a) 'float)
- (if math-chopping-small
- (if (or (> (nth 2 a) (- calc-internal-prec))
- (Math-lessp (- calc-internal-prec) (calcFunc-xpon a)))
- (if (and (math-num-integerp a)
- (math-lessp (calcFunc-xpon a) calc-internal-prec))
- (math-trunc a)
- a)
- 0)
- a))
- ((Math-objectp a) a)
- ((math-infinitep a) a)
- (t (list 'calcFunc-clean a))))
- )
- (setq math-chopping-small nil)
-
- (defun calcFunc-pclean (a &optional prec)
- (math-map-over-constants (function (lambda (x) (calcFunc-clean x prec)))
- a)
- )
-
- (defun calcFunc-pfloat (a)
- (math-map-over-constants 'math-float a)
- )
-
- (defun calcFunc-pfrac (a &optional tol)
- (math-map-over-constants (function (lambda (x) (calcFunc-frac x tol)))
- a)
- )
-
- (defun math-map-over-constants (func expr)
- (math-map-over-constants-rec expr)
- )
-
- (defun math-map-over-constants-rec (expr)
- (cond ((or (Math-primp expr)
- (memq (car expr) '(intv sdev)))
- (or (and (Math-objectp expr)
- (funcall func expr))
- expr))
- ((and (memq (car expr) '(^ calcFunc-subscr))
- (eq func 'math-float)
- (= (length expr) 3)
- (Math-integerp (nth 2 expr)))
- (list (car expr)
- (math-map-over-constants-rec (nth 1 expr))
- (nth 2 expr)))
- (t (cons (car expr) (mapcar 'math-map-over-constants-rec (cdr expr)))))
- )
-
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