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- ;; Calculator for GNU Emacs, part I [calc-misc.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.el.
- (require 'calc)
-
- (require 'calc-macs)
-
- (defun calc-Need-calc-misc () nil)
-
-
- (defun calc-dispatch-help (arg)
- "M-# is a prefix key; follow it with one of these letters:
-
- For turning Calc on and off:
- C calc. Start the Calculator in a window at the bottom of the screen.
- O calc-other-window. Start the Calculator but don't select its window.
- B calc-big-or-small. Control whether to use the full Emacs screen for Calc.
- Q quick-calc. Use the Calculator in the minibuffer.
- K calc-keypad. Start the Calculator in keypad mode (X window system only).
- E calc-embedded. Use the Calculator on a formula in this editing buffer.
- J calc-embedded-select. Like E, but select appropriate half of => or :=.
- W calc-embedded-word. Like E, but activate a single word, i.e., a number.
- Z calc-user-invocation. Invoke Calc in the way you defined with `Z I' cmd.
- X calc-quit. Turn Calc off.
-
- For moving data into and out of Calc:
- G calc-grab-region. Grab the region defined by mark and point into Calc.
- R calc-grab-rectangle. Grab the rectangle defined by mark, point into Calc.
- : calc-grab-sum-down. Grab a rectangle and sum the columns.
- _ calc-grab-sum-across. Grab a rectangle and sum the rows.
- Y calc-copy-to-buffer. Copy a value from the stack into the editing buffer.
-
- For use with Embedded mode:
- A calc-embedded-activate. Find and activate all :='s and =>'s in buffer.
- D calc-embedded-duplicate. Make a copy of this formula and select it.
- F calc-embedded-new-formula. Insert a new formula at current point.
- N calc-embedded-next. Advance cursor to next known formula in buffer.
- P calc-embedded-previous. Advance cursor to previous known formula.
- U calc-embedded-update-formula. Re-evaluate formula at point.
- ` calc-embedded-edit. Use calc-edit to edit formula at point.
-
- Documentation:
- I calc-info. Read the Calculator manual in the Emacs Info system.
- T calc-tutorial. Run the Calculator Tutorial using the Emacs Info system.
- S calc-summary. Read the Summary from the Calculator manual in Info.
-
- Miscellaneous:
- L calc-load-everything. Load all parts of the Calculator into memory.
- M read-kbd-macro. Read a region of keystroke names as a keyboard macro.
- 0 (zero) calc-reset. Reset Calc stack and modes to default state.
-
- Press twice (`M-# M-#' or `M-# #') to turn Calc on or off using the same
- Calc user interface as before (either M-# C or M-# K; initially M-# C)."
- (interactive "P")
- (calc-check-defines)
- (if calc-dispatch-help
- (progn
- (save-window-excursion
- (describe-function 'calc-dispatch-help)
- (let ((win (get-buffer-window "*Help*")))
- (if win
- (let (key)
- (select-window win)
- (while (progn
- (message "Calc options: Calc, Keypad, ... %s"
- "press SPC, DEL to scroll, C-g to cancel")
- (memq (car (setq key (calc-read-key t)))
- '(? ?\C-h ?\C-? ?\C-v ?\M-v)))
- (condition-case err
- (if (memq (car key) '(? ?\C-v))
- (scroll-up)
- (scroll-down))
- (error (beep))))
- (calc-unread-command (cdr key))))))
- (calc-do-dispatch nil))
- (let ((calc-dispatch-help t))
- (calc-do-dispatch arg)))
- )
-
-
- (defun calc-big-or-small (arg)
- "Toggle Calc between full-screen and regular mode."
- (interactive "P")
- (let ((cwin (get-buffer-window "*Calculator*"))
- (twin (get-buffer-window "*Calc Trail*"))
- (kwin (get-buffer-window "*Calc Keypad*")))
- (if cwin
- (setq calc-full-mode
- (if kwin
- (and twin (eq (window-width twin) (screen-width)))
- (eq (window-height cwin) (1- (screen-height))))))
- (setq calc-full-mode (if arg
- (> (prefix-numeric-value arg) 0)
- (not calc-full-mode)))
- (if kwin
- (progn
- (calc-quit)
- (calc-do-keypad calc-full-mode nil))
- (if cwin
- (progn
- (calc-quit)
- (calc nil calc-full-mode nil))))
- (message (if calc-full-mode
- "Now using full screen for Calc."
- "Now using partial screen for Calc.")))
- )
-
- (defun calc-other-window ()
- "Invoke the Calculator in another window."
- (interactive)
- (if (memq major-mode '(calc-mode calc-trail-mode))
- (progn
- (other-window 1)
- (if (memq major-mode '(calc-mode calc-trail-mode))
- (other-window 1)))
- (if (get-buffer-window "*Calculator*")
- (calc-quit)
- (let ((win (selected-window)))
- (calc nil win (interactive-p)))))
- )
-
- (defun another-calc ()
- "Create another, independent Calculator buffer."
- (interactive)
- (if (eq major-mode 'calc-mode)
- (mapcar (function
- (lambda (v)
- (set-default v (symbol-value v)))) calc-local-var-list))
- (set-buffer (generate-new-buffer "*Calculator*"))
- (pop-to-buffer (current-buffer))
- (calc-mode)
- )
-
-
- ;;; Make an attempt to preserve the window configuration, while deleting
- ;;; windows on "bufs". Emacs 19's delete-window function will probably
- ;;; make this kludgery unnecessary, but Emacs 18's tendency to grow all
- ;;; windows on the screen to take up the slack from the deleted windows
- ;;; can be annoying when Calc was called during another multi-window
- ;;; application, such as GNUS.
-
- (defun calc-delete-windows-keep (&rest bufs)
- (if (one-window-p)
- (mapcar 'delete-windows-on bufs)
- (let* ((w (car calc-was-split))
- (e (window-edges w))
- (wins nil)
- w2 e2)
- (while (progn
- (setq w2 (previous-window w)
- e2 (window-edges w2))
- (and (= (car e2) (car e))
- (= (nth 2 e2) (nth 2 e))
- (< (nth 1 e2) (nth 1 e))))
- (setq w w2 e e2))
- (setq w2 w e2 e)
- (while (progn
- (setq wins (cons (list w (nth 1 e) (window-buffer w)
- (window-point w) (window-start w))
- wins)
- w (next-window w)
- e (window-edges w))
- (and (not (eq w w2))
- (= (car e2) (car e))
- (= (nth 2 e2) (nth 2 e)))))
- (setq wins (nreverse wins))
- (mapcar 'delete-windows-on bufs)
- (or (one-window-p)
- (let ((w wins)
- (main nil)
- (mainpos 0)
- (sel (if (window-point (nth 2 calc-was-split))
- (nth 2 calc-was-split)
- (selected-window))))
- (while w
- (if (window-point (car (car w)))
- (if main
- (delete-window (car (car w)))
- (setq main (car (car w))
- mainpos (nth 1 (car w))
- wins (cdr wins)))
- (setq wins (delq (car w) wins)))
- (setq w (cdr w)))
- (while wins
- (setq w (split-window main
- (if (eq main (car calc-was-split))
- (nth 1 calc-was-split)
- (- (nth 1 (car wins)) mainpos))))
- (set-window-buffer w (nth 2 (car wins)))
- (set-window-point w (nth 3 (car wins)))
- (set-window-start w (nth 4 (car wins)))
- (if (eq sel (car (car wins)))
- (select-window w))
- (setq main w
- mainpos (nth 1 (car wins))
- wins (cdr wins)))
- (if (window-point sel)
- (select-window sel))))))
- )
-
-
- (defun calc-info ()
- "Run the Emacs Info system on the Calculator documentation."
- (interactive)
- (require 'info)
- (select-window (get-largest-window))
- (or (file-name-absolute-p calc-info-filename)
- (let ((p load-path)
- name)
- (if (boundp 'Info-directory)
- (setq p (cons Info-directory p)))
- (while (and p (not (file-exists-p
- (setq name (expand-file-name calc-info-filename
- (car p))))))
- (setq p (cdr p)))
- (if p (setq calc-info-filename name))))
- (condition-case err
- (info)
- (error nil))
- (or (and (boundp 'Info-current-file)
- (stringp Info-current-file)
- (string-match "calc" Info-current-file))
- (Info-find-node calc-info-filename "Top"))
- )
-
- (defun calc-tutorial ()
- "Run the Emacs Info system on the Calculator Tutorial."
- (interactive)
- (if (get-buffer-window "*Calculator*")
- (calc-quit))
- (calc-info)
- (Info-goto-node "Interactive Tutorial")
- (calc-other-window)
- (message "Welcome to the Calc Tutorial!")
- )
-
- (defun calc-info-summary ()
- "Run the Emacs Info system on the Calculator Summary."
- (interactive)
- (calc-info)
- (Info-goto-node "Summary")
- )
-
- (defun calc-help ()
- (interactive)
- (let ((msgs (append
- '("Press `h' for complete help; press `?' repeatedly for a summary"
- "Letter keys: Negate; Precision; Yank; Why; Xtended cmd; Quit"
- "Letter keys: SHIFT + Undo, reDo; Keep-args; Inverse, Hyperbolic"
- "Letter keys: SHIFT + sQrt; Sin, Cos, Tan; Exp, Ln, logB"
- "Letter keys: SHIFT + Floor, Round; Abs, conJ, arG; Pi"
- "Letter keys: SHIFT + Num-eval; More-recn; eXec-kbd-macro"
- "Other keys: +, -, *, /, ^, \\ (int div), : (frac div)"
- "Other keys: & (1/x), | (concat), % (modulo), ! (factorial)"
- "Other keys: ' (alg-entry), = (eval), ` (edit); M-RET (last-args)"
- "Other keys: SPC/RET (enter/dup), LFD (over); < > (scroll horiz)"
- "Other keys: DEL (drop), M-DEL (drop-above); { } (scroll vert)"
- "Other keys: TAB (swap/roll-dn), M-TAB (roll-up)"
- "Other keys: [ , ; ] (vector), ( , ) (complex), ( ; ) (polar)"
- "Prefix keys: Algebra, Binary/business, Convert, Display"
- "Prefix keys: Functions, Graphics, Help, J (select)"
- "Prefix keys: Kombinatorics/statistics, Modes, Store/recall"
- "Prefix keys: Trail/time, Units/statistics, Vector/matrix"
- "Prefix keys: Z (user), SHIFT + Z (define)"
- "Prefix keys: prefix + ? gives further help for that prefix")
- (list (format
- " Calc %s by Dave Gillespie, daveg@synaptics.com"
- calc-version)))))
- (if calc-full-help-flag
- msgs
- (if (or calc-inverse-flag calc-hyperbolic-flag)
- (if calc-inverse-flag
- (if calc-hyperbolic-flag
- (calc-inv-hyp-prefix-help)
- (calc-inverse-prefix-help))
- (calc-hyperbolic-prefix-help))
- (setq calc-help-phase
- (if (eq this-command last-command)
- (% (1+ calc-help-phase) (1+ (length msgs)))
- 0))
- (let ((msg (nth calc-help-phase msgs)))
- (message "%s" (if msg
- (concat msg ":"
- (make-string (- (apply 'max
- (mapcar 'length
- msgs))
- (length msg)) 32)
- " [?=MORE]")
- ""))))))
- )
-
-
-
-
- ;;;; Stack and buffer management.
-
-
- (defun calc-do-handle-whys ()
- (setq calc-why (sort calc-next-why
- (function
- (lambda (x y)
- (and (eq (car x) '*) (not (eq (car y) '*))))))
- calc-next-why nil)
- (if (and calc-why (or (eq calc-auto-why t)
- (and (eq (car (car calc-why)) '*)
- calc-auto-why)))
- (progn
- (calc-extensions)
- (calc-explain-why (car calc-why)
- (if (eq calc-auto-why t)
- (cdr calc-why)
- (if calc-auto-why
- (eq (car (nth 1 calc-why)) '*))))
- (setq calc-last-why-command this-command)
- (calc-clear-command-flag 'clear-message)))
- )
-
- (defun calc-record-why (&rest stuff)
- (if (eq (car stuff) 'quiet)
- (setq stuff (cdr stuff))
- (if (and (symbolp (car stuff))
- (cdr stuff)
- (or (Math-objectp (nth 1 stuff))
- (and (Math-vectorp (nth 1 stuff))
- (math-constp (nth 1 stuff)))
- (math-infinitep (nth 1 stuff))))
- (setq stuff (cons '* stuff))
- (if (and (stringp (car stuff))
- (string-match "\\`\\*" (car stuff)))
- (setq stuff (cons '* (cons (substring (car stuff) 1)
- (cdr stuff)))))))
- (setq calc-next-why (cons stuff calc-next-why))
- nil
- )
-
- ;;; True if A is a constant or vector of constants. [P x] [Public]
- (defun math-constp (a)
- (or (Math-scalarp a)
- (and (memq (car a) '(sdev intv mod vec))
- (progn
- (while (and (setq a (cdr a))
- (or (Math-scalarp (car a)) ; optimization
- (math-constp (car a)))))
- (null a))))
- )
-
-
- (defun calc-roll-down-stack (n &optional m)
- (if (< n 0)
- (calc-roll-up-stack (- n) m)
- (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size)))
- (or m (setq m 1))
- (and (> n 1)
- (< m n)
- (if (and calc-any-selections
- (not calc-use-selections))
- (calc-roll-down-with-selections n m)
- (calc-pop-push-list n
- (append (calc-top-list m 1)
- (calc-top-list (- n m) (1+ m)))))))
- )
-
- (defun calc-roll-up-stack (n &optional m)
- (if (< n 0)
- (calc-roll-down-stack (- n) m)
- (if (or (= n 0) (> n (calc-stack-size))) (setq n (calc-stack-size)))
- (or m (setq m 1))
- (and (> n 1)
- (< m n)
- (if (and calc-any-selections
- (not calc-use-selections))
- (calc-roll-up-with-selections n m)
- (calc-pop-push-list n
- (append (calc-top-list (- n m) 1)
- (calc-top-list m (- n m -1)))))))
- )
-
-
- (defun calc-do-refresh ()
- (if calc-hyperbolic-flag
- (progn
- (setq calc-display-dirty t)
- nil)
- (calc-refresh)
- t)
- )
-
-
- (defun calc-record-list (vals &optional prefix)
- (while vals
- (or (eq (car vals) 'top-of-stack)
- (progn
- (calc-record (car vals) prefix)
- (setq prefix "...")))
- (setq vals (cdr vals)))
- )
-
-
- (defun calc-last-args-stub (arg)
- (interactive "p")
- (calc-extensions)
- (calc-last-args arg)
- )
-
-
- (defun calc-power (arg)
- (interactive "P")
- (calc-slow-wrapper
- (if (and calc-extensions-loaded
- (calc-is-inverse))
- (calc-binary-op "root" 'calcFunc-nroot arg nil nil)
- (calc-binary-op "^" 'calcFunc-pow arg nil nil '^)))
- )
-
- (defun calc-mod (arg)
- (interactive "P")
- (calc-slow-wrapper
- (calc-binary-op "%" 'calcFunc-mod arg nil nil '%))
- )
-
- (defun calc-inv (arg)
- (interactive "P")
- (calc-slow-wrapper
- (calc-unary-op "inv" 'calcFunc-inv arg))
- )
-
- (defun calc-percent ()
- (interactive)
- (calc-slow-wrapper
- (calc-pop-push-record-list
- 1 "%" (list (list 'calcFunc-percent (calc-top-n 1)))))
- )
-
-
- (defun calc-over (n)
- (interactive "P")
- (if n
- (calc-enter (- (prefix-numeric-value n)))
- (calc-enter -2))
- )
-
-
- (defun calc-pop-above (n)
- (interactive "P")
- (if n
- (calc-pop (- (prefix-numeric-value n)))
- (calc-pop -2))
- )
-
- (defun calc-roll-down (n)
- (interactive "P")
- (calc-wrapper
- (let ((nn (prefix-numeric-value n)))
- (cond ((null n)
- (calc-roll-down-stack 2))
- ((> nn 0)
- (calc-roll-down-stack nn))
- ((= nn 0)
- (calc-pop-push-list (calc-stack-size)
- (reverse
- (calc-top-list (calc-stack-size)))))
- (t
- (calc-roll-down-stack (calc-stack-size) (- nn))))))
- )
-
- (defun calc-roll-up (n)
- (interactive "P")
- (calc-wrapper
- (let ((nn (prefix-numeric-value n)))
- (cond ((null n)
- (calc-roll-up-stack 3))
- ((> nn 0)
- (calc-roll-up-stack nn))
- ((= nn 0)
- (calc-pop-push-list (calc-stack-size)
- (reverse
- (calc-top-list (calc-stack-size)))))
- (t
- (calc-roll-up-stack (calc-stack-size) (- nn))))))
- )
-
-
-
-
- ;;; Other commands.
-
- (defun calc-num-prefix-name (n)
- (cond ((eq n '-) "- ")
- ((equal n '(4)) "C-u ")
- ((consp n) (format "%d " (car n)))
- ((integerp n) (format "%d " n))
- (t ""))
- )
-
- (defun calc-missing-key (n)
- "This is a placeholder for a command which needs to be loaded from calc-ext.
- When this key is used, calc-ext (the Calculator extensions module) will be
- loaded and the keystroke automatically re-typed."
- (interactive "P")
- (calc-extensions)
- (if (keymapp (key-binding (char-to-string last-command-char)))
- (message "%s%c-" (calc-num-prefix-name n) last-command-char))
- (calc-unread-command)
- (setq prefix-arg n)
- )
-
- (defun calc-shift-Y-prefix-help ()
- (interactive)
- (calc-extensions)
- (calc-do-prefix-help calc-Y-help-msgs "other" ?Y)
- )
-
-
-
-
- (defun calcDigit-letter ()
- (interactive)
- (if (calc-minibuffer-contains "[-+]?\\(1[1-9]\\|[2-9][0-9]\\)#.*")
- (progn
- (setq last-command-char (upcase last-command-char))
- (calcDigit-key))
- (calcDigit-nondigit))
- )
-
-
- ;; A Lisp version of temp_minibuffer_message from minibuf.c.
- (defun calc-temp-minibuffer-message (m)
- (let ((savemax (point-max)))
- (save-excursion
- (goto-char (point-max))
- (insert m))
- (let ((okay nil))
- (unwind-protect
- (progn
- (sit-for 2)
- (identity 1) ; this forces a call to QUIT; in bytecode.c.
- (setq okay t))
- (progn
- (delete-region savemax (point-max))
- (or okay (abort-recursive-edit))))))
- )
-
-
- (put 'math-with-extra-prec 'lisp-indent-hook 1)
-
-
- ;;; Concatenate two vectors, or a vector and an object. [V O O] [Public]
- (defun math-concat (v1 v2)
- (if (stringp v1)
- (concat v1 v2)
- (calc-extensions)
- (if (and (or (math-objvecp v1) (math-known-scalarp v1))
- (or (math-objvecp v2) (math-known-scalarp v2)))
- (append (if (and (math-vectorp v1)
- (or (math-matrixp v1)
- (not (math-matrixp v2))))
- v1
- (list 'vec v1))
- (if (and (math-vectorp v2)
- (or (math-matrixp v2)
- (not (math-matrixp v1))))
- (cdr v2)
- (list v2)))
- (list '| v1 v2)))
- )
-
-
- ;;; True if A is zero. Works for un-normalized values. [P n] [Public]
- (defun math-zerop (a)
- (if (consp a)
- (cond ((memq (car a) '(bigpos bigneg))
- (while (eq (car (setq a (cdr a))) 0))
- (null a))
- ((memq (car a) '(frac float polar mod))
- (math-zerop (nth 1 a)))
- ((eq (car a) 'cplx)
- (and (math-zerop (nth 1 a)) (math-zerop (nth 2 a))))
- ((eq (car a) 'hms)
- (and (math-zerop (nth 1 a))
- (math-zerop (nth 2 a))
- (math-zerop (nth 3 a)))))
- (eq a 0))
- )
-
-
- ;;; True if A is real and negative. [P n] [Public]
-
- (defun math-negp (a)
- (if (consp a)
- (cond ((eq (car a) 'bigpos) nil)
- ((eq (car a) 'bigneg) (cdr a))
- ((memq (car a) '(float frac))
- (Math-integer-negp (nth 1 a)))
- ((eq (car a) 'hms)
- (if (math-zerop (nth 1 a))
- (if (math-zerop (nth 2 a))
- (math-negp (nth 3 a))
- (math-negp (nth 2 a)))
- (math-negp (nth 1 a))))
- ((eq (car a) 'date)
- (math-negp (nth 1 a)))
- ((eq (car a) 'intv)
- (or (math-negp (nth 3 a))
- (and (math-zerop (nth 3 a))
- (memq (nth 1 a) '(0 2)))))
- ((equal a '(neg (var inf var-inf))) t))
- (< a 0))
- )
-
- ;;; True if A is a negative number or an expression the starts with '-'.
- (defun math-looks-negp (a) ; [P x] [Public]
- (or (Math-negp a)
- (eq (car-safe a) 'neg)
- (and (memq (car-safe a) '(* /))
- (or (math-looks-negp (nth 1 a))
- (math-looks-negp (nth 2 a))))
- (and (eq (car-safe a) '-)
- (math-looks-negp (nth 1 a))))
- )
-
-
- ;;; True if A is real and positive. [P n] [Public]
- (defun math-posp (a)
- (if (consp a)
- (cond ((eq (car a) 'bigpos) (cdr a))
- ((eq (car a) 'bigneg) nil)
- ((memq (car a) '(float frac))
- (Math-integer-posp (nth 1 a)))
- ((eq (car a) 'hms)
- (if (math-zerop (nth 1 a))
- (if (math-zerop (nth 2 a))
- (math-posp (nth 3 a))
- (math-posp (nth 2 a)))
- (math-posp (nth 1 a))))
- ((eq (car a) 'date)
- (math-posp (nth 1 a)))
- ((eq (car a) 'mod)
- (not (math-zerop (nth 1 a))))
- ((eq (car a) 'intv)
- (or (math-posp (nth 2 a))
- (and (math-zerop (nth 2 a))
- (memq (nth 1 a) '(0 1)))))
- ((equal a '(var inf var-inf)) t))
- (> a 0))
- )
-
- (fset 'math-fixnump (symbol-function 'integerp))
- (fset 'math-fixnatnump (symbol-function 'natnump))
-
-
- ;;; True if A is an even integer. [P R R] [Public]
- (defun math-evenp (a)
- (if (consp a)
- (and (memq (car a) '(bigpos bigneg))
- (= (% (nth 1 a) 2) 0))
- (= (% a 2) 0))
- )
-
- ;;; Compute A / 2, for small or big integer A. [I i]
- ;;; If A is negative, type of truncation is undefined.
- (defun math-div2 (a)
- (if (consp a)
- (if (cdr a)
- (math-normalize (cons (car a) (math-div2-bignum (cdr a))))
- 0)
- (/ a 2))
- )
-
- (defun math-div2-bignum (a) ; [l l]
- (if (cdr a)
- (cons (+ (/ (car a) 2) (* (% (nth 1 a) 2) 500))
- (math-div2-bignum (cdr a)))
- (list (/ (car a) 2)))
- )
-
-
- ;;; Reject an argument to a calculator function. [Public]
- (defun math-reject-arg (&optional a p option)
- (if option
- (calc-record-why option p a)
- (if p
- (calc-record-why p a)))
- (signal 'wrong-type-argument (and a (if p (list p a) (list a))))
- )
-
-
- ;;; Coerce A to be an integer (by truncation toward zero). [I N] [Public]
- (defun math-trunc (a &optional prec)
- (cond (prec
- (calc-extensions)
- (math-trunc-special a prec))
- ((Math-integerp a) a)
- ((Math-looks-negp a)
- (math-neg (math-trunc (math-neg a))))
- ((eq (car a) 'float)
- (math-scale-int (nth 1 a) (nth 2 a)))
- (t (calc-extensions)
- (math-trunc-fancy a)))
- )
- (fset 'calcFunc-trunc (symbol-function 'math-trunc))
-
- ;;; Coerce A to be an integer (by truncation toward minus infinity). [I N]
- (defun math-floor (a &optional prec) ; [Public]
- (cond (prec
- (calc-extensions)
- (math-floor-special a prec))
- ((Math-integerp a) a)
- ((Math-messy-integerp a) (math-trunc a))
- ((Math-realp a)
- (if (Math-negp a)
- (math-add (math-trunc a) -1)
- (math-trunc a)))
- (t (calc-extensions)
- (math-floor-fancy a)))
- )
- (fset 'calcFunc-floor (symbol-function 'math-floor))
-
-
- (defun math-imod (a b) ; [I I I] [Public]
- (if (and (not (consp a)) (not (consp b)))
- (if (= b 0)
- (math-reject-arg a "*Division by zero")
- (% a b))
- (cdr (math-idivmod a b)))
- )
-
-
- (defun calcFunc-inv (m)
- (if (Math-vectorp m)
- (progn
- (calc-extensions)
- (if (math-square-matrixp m)
- (or (math-with-extra-prec 2 (math-matrix-inv-raw m))
- (math-reject-arg m "*Singular matrix"))
- (math-reject-arg m 'square-matrixp)))
- (math-div 1 m))
- )
-
-
- (defun math-do-working (msg arg)
- (or executing-macro
- (progn
- (calc-set-command-flag 'clear-message)
- (if math-working-step
- (if math-working-step-2
- (setq msg (format "[%d/%d] %s"
- math-working-step math-working-step-2 msg))
- (setq msg (format "[%d] %s" math-working-step msg))))
- (message "Working... %s = %s" msg
- (math-showing-full-precision (math-format-number arg)))))
- )
-
-
- ;;; Compute A modulo B, defined in terms of truncation toward minus infinity.
- (defun math-mod (a b) ; [R R R] [Public]
- (cond ((and (Math-zerop a) (not (eq (car-safe a) 'mod))) a)
- ((Math-zerop b)
- (math-reject-arg a "*Division by zero"))
- ((and (Math-natnump a) (Math-natnump b))
- (math-imod a b))
- ((and (Math-anglep a) (Math-anglep b))
- (math-sub a (math-mul (math-floor (math-div a b)) b)))
- (t (calc-extensions)
- (math-mod-fancy a b)))
- )
-
-
-
- ;;; General exponentiation.
-
- (defun math-pow (a b) ; [O O N] [Public]
- (cond ((equal b '(var nan var-nan))
- b)
- ((Math-zerop a)
- (if (and (Math-scalarp b) (Math-posp b))
- (if (math-floatp b) (math-float a) a)
- (calc-extensions)
- (math-pow-of-zero a b)))
- ((or (eq a 1) (eq b 1)) a)
- ((or (equal a '(float 1 0)) (equal b '(float 1 0))) a)
- ((Math-zerop b)
- (if (Math-scalarp a)
- (if (or (math-floatp a) (math-floatp b))
- '(float 1 0) 1)
- (calc-extensions)
- (math-pow-zero a b)))
- ((and (Math-integerp b) (or (Math-numberp a) (Math-vectorp a)))
- (if (and (equal a '(float 1 1)) (integerp b))
- (math-make-float 1 b)
- (math-with-extra-prec 2
- (math-ipow a b))))
- (t
- (calc-extensions)
- (math-pow-fancy a b)))
- )
-
- (defun math-ipow (a n) ; [O O I] [Public]
- (cond ((Math-integer-negp n)
- (math-ipow (math-div 1 a) (Math-integer-neg n)))
- ((not (consp n))
- (if (and (Math-ratp a) (> n 20))
- (math-iipow-show a n)
- (math-iipow a n)))
- ((math-evenp n)
- (math-ipow (math-mul a a) (math-div2 n)))
- (t
- (math-mul a (math-ipow (math-mul a a)
- (math-div2 (math-add n -1))))))
- )
-
- (defun math-iipow (a n) ; [O O S]
- (cond ((= n 0) 1)
- ((= n 1) a)
- ((= (% n 2) 0) (math-iipow (math-mul a a) (/ n 2)))
- (t (math-mul a (math-iipow (math-mul a a) (/ n 2)))))
- )
-
- (defun math-iipow-show (a n) ; [O O S]
- (math-working "pow" a)
- (let ((val (cond
- ((= n 0) 1)
- ((= n 1) a)
- ((= (% n 2) 0) (math-iipow-show (math-mul a a) (/ n 2)))
- (t (math-mul a (math-iipow-show (math-mul a a) (/ n 2)))))))
- (math-working "pow" val)
- val)
- )
-
-
- (defun math-read-radix-digit (dig) ; [D S; Z S]
- (if (> dig ?9)
- (if (< dig ?A)
- nil
- (- dig 55))
- (if (>= dig ?0)
- (- dig ?0)
- nil))
- )
-
-
-
-
-
- ;;; Bug reporting
-
- (defun report-calc-bug (topic)
- "Report a bug in Calc, the GNU Emacs calculator.
- Prompts for bug subject. Leaves you in a mail buffer."
- (interactive "sBug Subject: ")
- (mail nil calc-bug-address topic)
- (goto-char (point-max))
- (insert "\nIn Calc " calc-version ", Emacs " (emacs-version) "\n\n")
- (message (substitute-command-keys "Type \\[mail-send] to send bug report."))
- )
- (fset 'calc-report-bug (symbol-function 'report-calc-bug))
-
-