1 ;;; calc-mode.el --- calculator modes for Calc
3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004,
4 ;; 2005 Free Software Foundation, Inc.
6 ;; Author: David Gillespie <daveg@synaptics.com>
7 ;; Maintainer: Jay Belanger <belanger@truman.edu>
9 ;; This file is part of GNU Emacs.
11 ;; GNU Emacs is distributed in the hope that it will be useful,
12 ;; but WITHOUT ANY WARRANTY. No author or distributor
13 ;; accepts responsibility to anyone for the consequences of using it
14 ;; or for whether it serves any particular purpose or works at all,
15 ;; unless he says so in writing. Refer to the GNU Emacs General Public
16 ;; License for full details.
18 ;; Everyone is granted permission to copy, modify and redistribute
19 ;; GNU Emacs, but only under the conditions described in the
20 ;; GNU Emacs General Public License. A copy of this license is
21 ;; supposed to have been given to you along with GNU Emacs so you
22 ;; can know your rights and responsibilities. It should be in a
23 ;; file named COPYING. Among other things, the copyright notice
24 ;; and this notice must be preserved on all copies.
30 ;; This file is autoloaded from calc-ext.el.
35 (defun calc-line-numbering (n)
38 (message (if (calc-change-mode 'calc-line-numbering n t t
)
39 "Displaying stack level numbers"
40 "Hiding stack level numbers"))))
42 (defun calc-line-breaking (n)
46 (and (> (setq n
(prefix-numeric-value n
)) 0)
49 (not calc-line-breaking
)))
50 (if (calc-change-mode 'calc-line-breaking n t
)
51 (if (integerp calc-line-breaking
)
52 (message "Breaking lines longer than %d characters" n
)
53 (message "Breaking long lines in Stack display"))
54 (message "Not breaking long lines in Stack display"))))
57 (defun calc-left-justify (n)
60 (and n
(setq n
(prefix-numeric-value n
)))
61 (calc-change-mode '(calc-display-just calc-display-origin
)
64 (message "Displaying stack entries indented by %d" n
)
65 (message "Displaying stack entries left-justified"))))
67 (defun calc-center-justify (n)
70 (and n
(setq n
(prefix-numeric-value n
)))
71 (calc-change-mode '(calc-display-just calc-display-origin
)
74 (message "Displaying stack entries centered on column %d" n
)
75 (message "Displaying stack entries centered in window"))))
77 (defun calc-right-justify (n)
80 (and n
(setq n
(prefix-numeric-value n
)))
81 (calc-change-mode '(calc-display-just calc-display-origin
)
84 (message "Displaying stack entries right-justified to column %d" n
)
85 (message "Displaying stack entries right-justified in window"))))
87 (defun calc-left-label (s)
88 (interactive "sLefthand label: ")
91 (setq s
(concat s
" ")))
92 (calc-change-mode 'calc-left-label s t
)))
94 (defun calc-right-label (s)
95 (interactive "sRighthand label: ")
98 (setq s
(concat " " s
)))
99 (calc-change-mode 'calc-right-label s t
)))
101 (defun calc-auto-why (n)
106 (setq n
(prefix-numeric-value n
))
107 (if (<= n
0) (setq n nil
)
108 (if (> n
1) (setq n t
))))
109 (setq n
(and (not (eq calc-auto-why t
)) (if calc-auto-why t
1))))
110 (calc-change-mode 'calc-auto-why n nil
)
112 (message "User must press `w' to explain unsimplified results"))
114 (message "Automatically doing `w' to explain unsimplified results"))
116 (message "Automatically doing `w' only for unusual messages")))))
118 (defun calc-group-digits (n)
123 (setq n
(prefix-numeric-value n
))
124 (cond ((or (> n
0) (< n -
1)))
128 (setq n calc-group-digits
))))
129 (setq n
(not calc-group-digits
)))
130 (calc-change-mode 'calc-group-digits n t
)
132 (message "Grouping is off"))
134 (message "Grouping every %d digits" (math-abs n
)))
136 (message "Grouping is on")))))
138 (defun calc-group-char (ch)
139 (interactive "cGrouping character: ")
142 (error "Control characters not allowed for grouping"))
145 (setq ch
(char-to-string ch
)))
146 (calc-change-mode 'calc-group-char ch calc-group-digits
)
147 (message "Digit grouping character is \"%s\"" ch
)))
149 (defun calc-point-char (ch)
150 (interactive "cCharacter to use as decimal point: ")
153 (error "Control characters not allowed as decimal point"))
154 (calc-change-mode 'calc-point-char
(char-to-string ch
) t
)
155 (message "Decimal point character is \"%c\"" ch
)))
157 (defun calc-normal-notation (n)
160 (calc-change-mode 'calc-float-format
161 (let* ((val (if n
(prefix-numeric-value n
) 0))
162 (mode (/ (+ val
5000) 10000)))
163 (if (or (< val -
5000) (> mode
3))
164 (error "Prefix out of range"))
165 (setq n
(list (aref [float sci eng fix
] mode
)
166 (- (%
(+ val
5000) 10000) 5000))))
169 (message "Displaying floating-point numbers normally")
172 "Displaying floating-point numbers with %d significant digits"
174 (message "Displaying floating-point numbers with (precision%d)"
177 (defun calc-fix-notation (n)
178 (interactive "NDigits after decimal point: ")
180 (calc-change-mode 'calc-float-format
181 (setq n
(list 'fix
(if n
(prefix-numeric-value n
) 0)))
183 (message "Displaying floats with %d digits after decimal"
184 (math-abs (nth 1 n
)))))
186 (defun calc-sci-notation (n)
189 (calc-change-mode 'calc-float-format
190 (setq n
(list 'sci
(if n
(prefix-numeric-value n
) 0)))
193 (message "Displaying floats in scientific notation")
195 (message "Displaying scientific notation with %d significant digits"
197 (message "Displaying scientific notation with (precision%d)"
200 (defun calc-eng-notation (n)
203 (calc-change-mode 'calc-float-format
204 (setq n
(list 'eng
(if n
(prefix-numeric-value n
) 0)))
207 (message "Displaying floats in engineering notation")
209 (message "Displaying engineering notation with %d significant digits"
211 (message "Displaying engineering notation with (precision%d)"
215 (defun calc-truncate-stack (n &optional rel
)
218 (let ((oldtop calc-stack-top
)
219 (newtop calc-stack-top
))
220 (calc-record-undo (list 'set
'saved-stack-top calc-stack-top
))
221 (let ((calc-stack-top 0)
222 (nn (prefix-numeric-value n
)))
227 (setq nn
(+ oldtop nn
))
229 (setq nn
(+ nn
(calc-stack-size)))
233 (if (> nn
(calc-stack-size))
236 (max 1 (calc-locate-cursor-element (point)))))
237 (if (= newtop oldtop
)
239 (calc-pop-stack 1 oldtop t
)
240 (calc-push-list '(top-of-stack) newtop
)
241 (if calc-line-numbering
243 (calc-record-undo (list 'set
'saved-stack-top
0))
244 (setq calc-stack-top newtop
))))
246 (defun calc-truncate-up (n)
248 (calc-truncate-stack n t
))
250 (defun calc-truncate-down (n)
252 (calc-truncate-stack (- n
) t
))
254 (defun calc-display-raw (arg)
257 (setq calc-display-raw
(if calc-display-raw nil
(if arg
0 t
)))
260 (message "Press d ' again to cancel \"raw\" display mode"))))
267 (defun calc-save-modes ()
271 (vals (mapcar (function (lambda (v) (symbol-value (car v
))))
272 calc-mode-var-list
)))
273 (unless calc-settings-file
274 (error "No `calc-settings-file' specified"))
275 (set-buffer (find-file-noselect (substitute-in-file-name
276 calc-settings-file
)))
277 (goto-char (point-min))
278 (if (and (search-forward ";;; Mode settings stored by Calc" nil t
)
282 (search-forward "\n;;; End of mode settings" nil t
)))
286 (delete-region pos
(point)))
287 (goto-char (point-max))
290 (insert ";;; Mode settings stored by Calc on " (current-time-string) "\n")
291 (let ((list calc-mode-var-list
))
293 (let* ((v (car (car list
)))
294 (def (nth 1 (car list
)))
298 (insert "(setq " (symbol-name v
) " ")
299 (if (and (or (listp val
)
301 (not (memq val
'(nil t
))))
303 (insert (prin1-to-string val
) ")\n"))))
304 (setq list
(cdr list
)
306 (run-hooks 'calc-mode-save-hook
)
307 (insert ";;; End of mode settings\n")
309 (if calc-embedded-info
310 (calc-embedded-save-original-modes)))))
312 (defun calc-settings-file-name (name &optional arg
)
314 (list (read-file-name (format "Settings file name (normally %s): "
315 (abbreviate-file-name calc-settings-file
)))
318 (setq arg
(if arg
(prefix-numeric-value arg
) 0))
319 (if (string-equal (file-name-nondirectory name
) "")
320 (message "Calc settings file is \"%s\"" calc-settings-file
)
321 (if (< (math-abs arg
) 2)
322 (let ((list calc-mode-var-list
))
324 (set (car (car list
)) (nth 1 (car list
)))
325 (setq list
(cdr list
)))))
326 (setq calc-settings-file name
)
329 (equal user-init-file calc-settings-file
)
333 (message "New file")))))
335 (defun math-get-modes-vec ()
341 (+ (if (<= (nth 1 calc-float-format
) 0)
342 (+ calc-internal-prec
(nth 1 calc-float-format
))
343 (nth 1 calc-float-format
))
344 (cdr (assq (car calc-float-format
)
345 '((float .
0) (sci .
10000)
346 (eng .
20000) (fix .
30000)))))
347 (cond ((eq calc-angle-mode
'rad
) 2)
348 ((eq calc-angle-mode
'hms
) 3)
350 (if calc-symbolic-mode
1 0)
351 (if calc-prefer-frac
1 0)
352 (if (eq calc-complex-mode
'polar
) 1 0)
353 (cond ((eq calc-matrix-mode
'scalar
) 0)
354 ((eq calc-matrix-mode
'matrix
) -
2)
357 (cond ((eq calc-simplify-mode
'none
) -
1)
358 ((eq calc-simplify-mode
'num
) 0)
359 ((eq calc-simplify-mode
'binary
) 2)
360 ((eq calc-simplify-mode
'alg
) 3)
361 ((eq calc-simplify-mode
'ext
) 4)
362 ((eq calc-simplify-mode
'units
) 5)
364 (cond ((eq calc-infinite-mode
1) 0)
365 (calc-infinite-mode 1)
368 (defun calc-get-modes (n)
371 (let ((modes (math-get-modes-vec)))
372 (calc-enter-result 0 "mode"
374 (if (and (>= (setq n
(prefix-numeric-value n
)) 1)
375 (< n
(length modes
)))
377 (error "Prefix out of range"))
380 (defun calc-shift-prefix (arg)
383 (setq calc-shift-prefix
(if arg
384 (> (prefix-numeric-value arg
) 0)
385 (not calc-shift-prefix
)))
387 (message (if calc-shift-prefix
388 "Prefix keys are now case-insensitive"
389 "Prefix keys must be unshifted (except V, Z)"))))
391 (defun calc-mode-record-mode (n)
394 (calc-change-mode 'calc-mode-save-mode
396 (cond ((not calc-embedded-info
)
397 (if (eq calc-mode-save-mode
'save
)
399 ((eq calc-mode-save-mode
'local
) 'edit
)
400 ((eq calc-mode-save-mode
'edit
) 'perm
)
401 ((eq calc-mode-save-mode
'perm
) 'global
)
402 ((eq calc-mode-save-mode
'global
) 'save
)
403 ((eq calc-mode-save-mode
'save
) nil
)
404 ((eq calc-mode-save-mode nil
) 'local
)))
405 ((= (setq n
(prefix-numeric-value n
)) 0) nil
)
411 (message (cond ((and (eq calc-mode-save-mode
'local
) calc-embedded-info
)
412 "Recording mode changes with [calc-mode: ...]")
413 ((eq calc-mode-save-mode
'edit
)
414 "Recording mode changes with [calc-edit-mode: ...]")
415 ((eq calc-mode-save-mode
'perm
)
416 "Recording mode changes with [calc-perm-mode: ...]")
417 ((eq calc-mode-save-mode
'global
)
418 "Recording mode changes with [calc-global-mode: ...]")
419 ((eq calc-mode-save-mode
'save
)
420 (format "Recording mode changes in \"%s\""
423 "Not recording mode changes permanently")))))
425 (defun calc-total-algebraic-mode (flag)
428 (if (eq calc-algebraic-mode
'total
)
429 (calc-algebraic-mode nil
)
430 (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode
)
432 (use-local-map calc-alg-map
)
434 "All keys begin algebraic entry; use Meta (ESC) for Calc keys"))))
436 (defun calc-algebraic-mode (flag)
440 (calc-change-mode '(calc-algebraic-mode
441 calc-incomplete-algebraic-mode
)
442 (list nil
(not calc-incomplete-algebraic-mode
)))
443 (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode
)
444 (list (not calc-algebraic-mode
) nil
)))
445 (use-local-map calc-mode-map
)
446 (message (if calc-algebraic-mode
447 "Numeric keys and ( and [ begin algebraic entry"
448 (if calc-incomplete-algebraic-mode
449 "Only ( and [ begin algebraic entry"
450 "No keys except ' and $ begin algebraic entry")))))
452 (defun calc-symbolic-mode (n)
456 (message (if (calc-change-mode 'calc-symbolic-mode n nil t
)
457 "Inexact computations like sqrt(2) are deferred"
458 "Numerical computations are always done immediately"))))
460 (defun calc-infinite-mode (n)
465 (calc-change-mode 'calc-infinite-mode
1)
466 (message "Computations like 1 / 0 produce \"inf\""))
467 (message (if (calc-change-mode 'calc-infinite-mode n nil t
)
468 "Computations like 1 / 0 produce \"uinf\""
469 "Computations like 1 / 0 are left unsimplified")))))
471 (defun calc-matrix-mode (arg)
474 (calc-change-mode 'calc-matrix-mode
475 (cond ((eq arg
0) 'scalar
)
476 ((< (prefix-numeric-value arg
) 1)
477 (and (< (prefix-numeric-value arg
) -
1) 'matrix
))
478 (arg (prefix-numeric-value arg
))
479 ((eq calc-matrix-mode
'matrix
) 'scalar
)
480 ((eq calc-matrix-mode
'scalar
) nil
)
482 (if (integerp calc-matrix-mode
)
483 (message "Variables are assumed to be %dx%d matrices"
484 calc-matrix-mode calc-matrix-mode
)
485 (message (if (eq calc-matrix-mode
'matrix
)
486 "Variables are assumed to be matrices"
488 "Variables are assumed to be scalars (non-matrices)"
489 "Variables are not assumed to be matrix or scalar"))))))
491 (defun calc-set-simplify-mode (mode arg msg
)
492 (calc-change-mode 'calc-simplify-mode
494 (and (> (prefix-numeric-value arg
) 0)
496 (and (not (eq calc-simplify-mode mode
))
498 (message (if (eq calc-simplify-mode mode
)
500 "Default simplifications enabled")))
502 (defun calc-no-simplify-mode (arg)
505 (calc-set-simplify-mode 'none arg
506 "All default simplifications are disabled")))
508 (defun calc-num-simplify-mode (arg)
511 (calc-set-simplify-mode 'num arg
512 "Default simplifications apply only if arguments are numeric")))
514 (defun calc-default-simplify-mode (arg)
518 (calc-set-simplify-mode
519 nil nil
"Usual default simplifications are enabled")))
520 ((= arg
0) (calc-num-simplify-mode 1))
521 ((< arg
0) (calc-no-simplify-mode 1))
522 ((= arg
2) (calc-bin-simplify-mode 1))
523 ((= arg
3) (calc-alg-simplify-mode 1))
524 ((= arg
4) (calc-ext-simplify-mode 1))
525 ((= arg
5) (calc-units-simplify-mode 1))
526 (t (error "Prefix argument out of range"))))
528 (defun calc-bin-simplify-mode (arg)
531 (calc-set-simplify-mode 'binary arg
532 (format "Binary simplification occurs by default (word size=%d)"
535 (defun calc-alg-simplify-mode (arg)
538 (calc-set-simplify-mode 'alg arg
539 "Algebraic simplification occurs by default")))
541 (defun calc-ext-simplify-mode (arg)
544 (calc-set-simplify-mode 'ext arg
545 "Extended algebraic simplification occurs by default")))
547 (defun calc-units-simplify-mode (arg)
550 (calc-set-simplify-mode 'units arg
551 "Units simplification occurs by default")))
553 (defun calc-auto-recompute (arg)
556 (calc-change-mode 'calc-auto-recompute arg nil t
)
557 (calc-refresh-evaltos)
558 (message (if calc-auto-recompute
559 "Automatically recomputing `=>' forms when necessary"
560 "Not recomputing `=>' forms automatically"))))
562 (defun calc-working (n)
566 (calc-pop-push-record 0 "work"
567 (cond ((eq calc-display-working-message t
) 1)
568 (calc-display-working-message 2)
570 ((eq n
2) (calc-change-mode 'calc-display-working-message
'lots
))
571 ((eq n
0) (calc-change-mode 'calc-display-working-message nil
))
572 ((eq n
1) (calc-change-mode 'calc-display-working-message t
)))
573 (cond ((eq calc-display-working-message t
)
574 (message "\"Working...\" messages enabled"))
575 (calc-display-working-message
576 (message "Detailed \"Working...\" messages enabled"))
578 (message "\"Working...\" messages disabled")))))
580 (defun calc-always-load-extensions ()
583 (if (setq calc-always-load-extensions
(not calc-always-load-extensions
))
584 (message "Always loading extensions package")
585 (message "Loading extensions package on demand only"))))
588 (defun calc-matrix-left-justify ()
591 (calc-change-mode 'calc-matrix-just nil t
)
592 (message "Matrix elements will be left-justified in columns")))
594 (defun calc-matrix-center-justify ()
597 (calc-change-mode 'calc-matrix-just
'center t
)
598 (message "Matrix elements will be centered in columns")))
600 (defun calc-matrix-right-justify ()
603 (calc-change-mode 'calc-matrix-just
'right t
)
604 (message "Matrix elements will be right-justified in columns")))
606 (defun calc-full-vectors (n)
609 (message (if (calc-change-mode 'calc-full-vectors n t t
)
610 "Displaying long vectors in full"
611 "Displaying long vectors in [a, b, c, ..., z] notation"))))
613 (defun calc-full-trail-vectors (n)
616 (message (if (calc-change-mode 'calc-full-trail-vectors n nil t
)
617 "Recording long vectors in full"
618 "Recording long vectors in [a, b, c, ..., z] notation"))))
620 (defun calc-break-vectors (n)
623 (message (if (calc-change-mode 'calc-break-vectors n t t
)
624 "Displaying vector elements one-per-line"
625 "Displaying vector elements all on one line"))))
627 (defun calc-vector-commas ()
630 (if (calc-change-mode 'calc-vector-commas
(if calc-vector-commas nil
",") t
)
631 (message "Separating vector elements with \",\"")
632 (message "Separating vector elements with spaces"))))
634 (defun calc-vector-brackets ()
637 (if (calc-change-mode 'calc-vector-brackets
638 (if (equal calc-vector-brackets
"[]") nil
"[]") t
)
639 (message "Surrounding vectors with \"[]\"")
640 (message "Not surrounding vectors with brackets"))))
642 (defun calc-vector-braces ()
645 (if (calc-change-mode 'calc-vector-brackets
646 (if (equal calc-vector-brackets
"{}") nil
"{}") t
)
647 (message "Surrounding vectors with \"{}\"")
648 (message "Not surrounding vectors with brackets"))))
650 (defun calc-vector-parens ()
653 (if (calc-change-mode 'calc-vector-brackets
654 (if (equal calc-vector-brackets
"()") nil
"()") t
)
655 (message "Surrounding vectors with \"()\"")
656 (message "Not surrounding vectors with brackets"))))
658 (defun calc-matrix-brackets (arg)
659 (interactive "sCode letters (R, O, C, P): ")
661 (let ((code (append (and (string-match "[rR]" arg
) '(R))
662 (and (string-match "[oO]" arg
) '(O))
663 (and (string-match "[cC]" arg
) '(C))
664 (and (string-match "[pP]" arg
) '(P))))
665 (bad (string-match "[^rRoOcCpP ]" arg
)))
667 (error "Unrecognized character: %c" (aref arg bad
)))
668 (calc-change-mode 'calc-matrix-brackets code t
))))
672 ;;; arch-tag: ecc70eea-c712-43f2-9085-4205e58d6ddf
673 ;;; calc-mode.el ends here