lisp/calc/calc-mode.el

   1 ;;; calc-mode.el --- calculator modes for Calc
   2
   3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
   4
   5 ;; Author: David Gillespie <daveg@synaptics.com>
   6 ;; Maintainers: D. Goel <deego@gnufans.org>
   7 ;;              Colin Walters <walters@debian.org>
   8
   9 ;; This file is part of GNU Emacs.
  10
  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.
  17
  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.
  25
  26 ;;; Commentary:
  27
  28 ;;; Code:
  29
  30
  31 ;; This file is autoloaded from calc-ext.el.
  32 (require 'calc-ext)
  33
  34 (require 'calc-macs)
  35
  36 (defun calc-Need-calc-mode () nil)
  37
  38
  39 (defun calc-line-numbering (n)
  40   (interactive "P")
  41   (calc-wrapper
  42    (message (if (calc-change-mode 'calc-line-numbering n t t)
  43                 "Displaying stack level numbers"
  44               "Hiding stack level numbers"))))
  45
  46 (defun calc-line-breaking (n)
  47   (interactive "P")
  48   (calc-wrapper
  49    (setq n (if n
  50                (and (> (setq n (prefix-numeric-value n)) 0)
  51                     (or (< n 5)
  52                         n))
  53              (not calc-line-breaking)))
  54    (if (calc-change-mode 'calc-line-breaking n t)
  55        (if (integerp calc-line-breaking)
  56            (message "Breaking lines longer than %d characters" n)
  57          (message "Breaking long lines in Stack display"))
  58      (message "Not breaking long lines in Stack display"))))
  59
  60
  61 (defun calc-left-justify (n)
  62   (interactive "P")
  63   (calc-wrapper
  64    (and n (setq n (prefix-numeric-value n)))
  65    (calc-change-mode '(calc-display-just calc-display-origin)
  66                      (list nil n) t)
  67    (if n
  68        (message "Displaying stack entries indented by %d" n)
  69      (message "Displaying stack entries left-justified"))))
  70
  71 (defun calc-center-justify (n)
  72   (interactive "P")
  73   (calc-wrapper
  74    (and n (setq n (prefix-numeric-value n)))
  75    (calc-change-mode '(calc-display-just calc-display-origin)
  76                      (list 'center n) t)
  77    (if n
  78        (message "Displaying stack entries centered on column %d" n)
  79      (message "Displaying stack entries centered in window"))))
  80
  81 (defun calc-right-justify (n)
  82   (interactive "P")
  83   (calc-wrapper
  84    (and n (setq n (prefix-numeric-value n)))
  85    (calc-change-mode '(calc-display-just calc-display-origin)
  86                      (list 'right n) t)
  87    (if n
  88        (message "Displaying stack entries right-justified to column %d" n)
  89      (message "Displaying stack entries right-justified in window"))))
  90
  91 (defun calc-left-label (s)
  92   (interactive "sLefthand label: ")
  93   (calc-wrapper
  94    (or (equal s "")
  95        (setq s (concat s " ")))
  96    (calc-change-mode 'calc-left-label s t)))
  97
  98 (defun calc-right-label (s)
  99   (interactive "sRighthand label: ")
 100   (calc-wrapper
 101    (or (equal s "")
 102        (setq s (concat " " s)))
 103    (calc-change-mode 'calc-right-label s t)))
 104
 105 (defun calc-auto-why (n)
 106   (interactive "P")
 107   (calc-wrapper
 108    (if n
 109        (progn
 110          (setq n (prefix-numeric-value n))
 111          (if (<= n 0) (setq n nil)
 112            (if (> n 1) (setq n t))))
 113      (setq n (and (not (eq calc-auto-why t)) (if calc-auto-why t 1))))
 114    (calc-change-mode 'calc-auto-why n nil)
 115    (cond ((null n)
 116           (message "User must press `w' to explain unsimplified results"))
 117          ((eq n t)
 118           (message "Automatically doing `w' to explain unsimplified results"))
 119          (t
 120           (message "Automatically doing `w' only for unusual messages")))))
 121
 122 (defun calc-group-digits (n)
 123   (interactive "P")
 124   (calc-wrapper
 125    (if n
 126        (progn
 127          (setq n (prefix-numeric-value n))
 128          (cond ((or (> n 0) (< n -1)))
 129                ((= n -1)
 130                 (setq n nil))
 131                (t
 132                 (setq n calc-group-digits))))
 133      (setq n (not calc-group-digits)))
 134    (calc-change-mode 'calc-group-digits n t)
 135    (cond ((null n)
 136           (message "Grouping is off"))
 137          ((integerp n)
 138           (message "Grouping every %d digits" (math-abs n)))
 139          (t
 140           (message "Grouping is on")))))
 141
 142 (defun calc-group-char (ch)
 143   (interactive "cGrouping character: ")
 144   (calc-wrapper
 145    (or (>= ch 32)
 146        (error "Control characters not allowed for grouping"))
 147    (if (= ch ?\\)
 148        (setq ch "\\,")
 149      (setq ch (char-to-string ch)))
 150    (calc-change-mode 'calc-group-char ch calc-group-digits)
 151    (message "Digit grouping character is \"%s\"" ch)))
 152
 153 (defun calc-point-char (ch)
 154   (interactive "cCharacter to use as decimal point: ")
 155   (calc-wrapper
 156    (or (>= ch 32)
 157        (error "Control characters not allowed as decimal point"))
 158    (calc-change-mode 'calc-point-char (char-to-string ch) t)
 159    (message "Decimal point character is \"%c\"" ch)))
 160
 161 (defun calc-normal-notation (n)
 162   (interactive "P")
 163   (calc-wrapper
 164    (calc-change-mode 'calc-float-format
 165                      (let* ((val (if n (prefix-numeric-value n) 0))
 166                             (mode (/ (+ val 5000) 10000)))
 167                        (if (or (< val -5000) (> mode 3))
 168                            (error "Prefix out of range"))
 169                        (setq n (list (aref [float sci eng fix] mode)
 170                                      (- (% (+ val 5000) 10000) 5000))))
 171                      t)
 172    (if (eq (nth 1 n) 0)
 173        (message "Displaying floating-point numbers normally")
 174      (if (> (nth 1 n) 0)
 175          (message
 176           "Displaying floating-point numbers with %d significant digits"
 177           (nth 1 n))
 178        (message "Displaying floating-point numbers with (precision%d)"
 179                 (nth 1 n))))))
 180
 181 (defun calc-fix-notation (n)
 182   (interactive "NDigits after decimal point: ")
 183   (calc-wrapper
 184    (calc-change-mode 'calc-float-format
 185                      (setq n (list 'fix (if n (prefix-numeric-value n) 0)))
 186                      t)
 187    (message "Displaying floats with %d digits after decimal"
 188             (math-abs (nth 1 n)))))
 189
 190 (defun calc-sci-notation (n)
 191   (interactive "P")
 192   (calc-wrapper
 193    (calc-change-mode 'calc-float-format
 194                      (setq n (list 'sci (if n (prefix-numeric-value n) 0)))
 195                      t)
 196    (if (eq (nth 1 n) 0)
 197        (message "Displaying floats in scientific notation")
 198      (if (> (nth 1 n) 0)
 199          (message "Displaying scientific notation with %d significant digits"
 200                   (nth 1 n))
 201        (message "Displaying scientific notation with (precision%d)"
 202                 (nth 1 n))))))
 203
 204 (defun calc-eng-notation (n)
 205   (interactive "P")
 206   (calc-wrapper
 207    (calc-change-mode 'calc-float-format
 208                      (setq n (list 'eng (if n (prefix-numeric-value n) 0)))
 209                      t)
 210    (if (eq (nth 1 n) 0)
 211        (message "Displaying floats in engineering notation")
 212      (if (> (nth 1 n) 0)
 213          (message "Displaying engineering notation with %d significant digits"
 214                   (nth 1 n))
 215        (message "Displaying engineering notation with (precision%d)"
 216                 (nth 1 n))))))
 217
 218
 219 (defun calc-truncate-stack (n &optional rel)
 220   (interactive "P")
 221   (calc-wrapper
 222    (let ((oldtop calc-stack-top)
 223          (newtop calc-stack-top))
 224      (calc-record-undo (list 'set 'saved-stack-top calc-stack-top))
 225      (let ((calc-stack-top 0)
 226            (nn (prefix-numeric-value n)))
 227        (setq newtop
 228              (if n
 229                  (progn
 230                    (if rel
 231                        (setq nn (+ oldtop nn))
 232                      (if (< nn 0)
 233                          (setq nn (+ nn (calc-stack-size)))
 234                        (setq nn (1+ nn))))
 235                    (if (< nn 1)
 236                        1
 237                      (if (> nn (calc-stack-size))
 238                          (calc-stack-size)
 239                        nn)))
 240                (max 1 (calc-locate-cursor-element (point)))))
 241        (if (= newtop oldtop)
 242            ()
 243          (calc-pop-stack 1 oldtop t)
 244          (calc-push-list '(top-of-stack) newtop)
 245          (if calc-line-numbering
 246              (calc-refresh))))
 247      (calc-record-undo (list 'set 'saved-stack-top 0))
 248      (setq calc-stack-top newtop))))
 249
 250 (defun calc-truncate-up (n)
 251   (interactive "p")
 252   (calc-truncate-stack n t))
 253
 254 (defun calc-truncate-down (n)
 255   (interactive "p")
 256   (calc-truncate-stack (- n) t))
 257
 258 (defun calc-display-raw (arg)
 259   (interactive "P")
 260   (calc-wrapper
 261    (setq calc-display-raw (if calc-display-raw nil (if arg 0 t)))
 262    (calc-do-refresh)
 263    (if calc-display-raw
 264        (message "Press d ' again to cancel \"raw\" display mode"))))
 265
 266
 267
 268
 269 ;;; Mode commands.
 270
 271 (defun calc-save-modes ()
 272   (interactive)
 273   (calc-wrapper
 274    (let (pos
 275          (vals (mapcar (function (lambda (v) (symbol-value (car v))))
 276                        calc-mode-var-list)))
 277      (unless calc-settings-file
 278        (error "No `calc-settings-file' specified"))
 279      (set-buffer (find-file-noselect (substitute-in-file-name
 280                                       calc-settings-file)))
 281      (goto-char (point-min))
 282      (if (and (search-forward ";;; Mode settings stored by Calc" nil t)
 283               (progn
 284                 (beginning-of-line)
 285                 (setq pos (point))
 286                 (search-forward "\n;;; End of mode settings" nil t)))
 287          (progn
 288            (beginning-of-line)
 289            (forward-line 1)
 290            (delete-region pos (point)))
 291        (goto-char (point-max))
 292        (insert "\n\n")
 293        (forward-char -1))
 294      (insert ";;; Mode settings stored by Calc on " (current-time-string) "\n")
 295      (let ((list calc-mode-var-list))
 296        (while list
 297          (let* ((v (car (car list)))
 298                 (def (nth 1 (car list)))
 299                 (val (car vals)))
 300            (or (equal val def)
 301                (progn
 302                  (insert "(setq " (symbol-name v) " ")
 303                  (if (and (or (listp val)
 304                               (symbolp val))
 305                           (not (memq val '(nil t))))
 306                      (insert "'"))
 307                  (insert (prin1-to-string val) ")\n"))))
 308          (setq list (cdr list)
 309                vals (cdr vals))))
 310      (run-hooks 'calc-mode-save-hook)
 311      (insert ";;; End of mode settings\n")
 312      (save-buffer))))
 313
 314 (defun calc-settings-file-name (name &optional arg)
 315   (interactive
 316    (list (read-file-name (format "Settings file name (normally %s): "
 317                                  (abbreviate-file-name (or user-init-file
 318                                                            "~/.emacs"))))
 319          current-prefix-arg))
 320   (calc-wrapper
 321    (setq arg (if arg (prefix-numeric-value arg) 0))
 322    (if (equal name "")
 323        (message "Calc settings file is \"%s\"" calc-settings-file)
 324      (if (< (math-abs arg) 2)
 325          (let ((list calc-mode-var-list))
 326            (while list
 327              (set (car (car list)) (nth 1 (car list)))
 328              (setq list (cdr list)))))
 329      ;; FIXME: we should use ~/.calc or so in order to avoid
 330      ;; reexecuting ~/.emacs (it's not always idempotent) -cgw 2001.11.12
 331      (setq calc-settings-file name)
 332      (or (and
 333           calc-settings-file
 334           (string-match "\\.emacs" calc-settings-file)
 335               (> arg 0))
 336          (< arg 0)
 337          (load name t)
 338          (message "New file")))))
 339
 340 (defun math-get-modes-vec ()
 341   (list 'vec
 342         calc-internal-prec
 343         calc-word-size
 344         (calc-stack-size)
 345         calc-number-radix
 346         (+ (if (<= (nth 1 calc-float-format) 0)
 347                (+ calc-internal-prec (nth 1 calc-float-format))
 348              (nth 1 calc-float-format))
 349            (cdr (assq (car calc-float-format)
 350                       '((float . 0) (sci . 10000)
 351                         (eng . 20000) (fix . 30000)))))
 352         (cond ((eq calc-angle-mode 'rad) 2)
 353               ((eq calc-angle-mode 'hms) 3)
 354               (t 1))
 355         (if calc-symbolic-mode 1 0)
 356         (if calc-prefer-frac 1 0)
 357         (if (eq calc-complex-mode 'polar) 1 0)
 358         (cond ((eq calc-matrix-mode 'scalar) 0)
 359               ((eq calc-matrix-mode 'matrix) -2)
 360               (calc-matrix-mode)
 361               (t -1))
 362         (cond ((eq calc-simplify-mode 'none) -1)
 363               ((eq calc-simplify-mode 'num) 0)
 364               ((eq calc-simplify-mode 'binary) 2)
 365               ((eq calc-simplify-mode 'alg) 3)
 366               ((eq calc-simplify-mode 'ext) 4)
 367               ((eq calc-simplify-mode 'units) 5)
 368               (t 1))
 369         (cond ((eq calc-infinite-mode 1) 0)
 370               (calc-infinite-mode 1)
 371               (t -1))))
 372
 373 (defun calc-get-modes (n)
 374   (interactive "P")
 375   (calc-wrapper
 376    (let ((modes (math-get-modes-vec)))
 377      (calc-enter-result 0 "mode"
 378                         (if n
 379                             (if (and (>= (setq n (prefix-numeric-value n)) 1)
 380                                      (< n (length modes)))
 381                                 (nth n modes)
 382                               (error "Prefix out of range"))
 383                           modes)))))
 384
 385 (defun calc-shift-prefix (arg)
 386   (interactive "P")
 387   (calc-wrapper
 388    (setq calc-shift-prefix (if arg
 389                                (> (prefix-numeric-value arg) 0)
 390                              (not calc-shift-prefix)))
 391    (calc-init-prefixes)
 392    (message (if calc-shift-prefix
 393                 "Prefix keys are now case-insensitive"
 394               "Prefix keys must be unshifted (except V, Z)"))))
 395
 396 (defun calc-mode-record-mode (n)
 397   (interactive "P")
 398   (calc-wrapper
 399    (calc-change-mode 'calc-mode-save-mode
 400                      (cond ((null n)
 401                             (cond ((not calc-embedded-info)
 402                                    (if (eq calc-mode-save-mode 'save)
 403                                        'local 'save))
 404                                   ((eq calc-mode-save-mode 'local)  'edit)
 405                                   ((eq calc-mode-save-mode 'edit)   'perm)
 406                                   ((eq calc-mode-save-mode 'perm)   'global)
 407                                   ((eq calc-mode-save-mode 'global) 'save)
 408                                   ((eq calc-mode-save-mode 'save)   nil)
 409                                   ((eq calc-mode-save-mode nil)     'local)))
 410                            ((= (setq n (prefix-numeric-value n)) 0) nil)
 411                            ((= n 2) 'edit)
 412                            ((= n 3) 'perm)
 413                            ((= n 4) 'global)
 414                            ((= n 5) 'save)
 415                            (t 'local)))
 416    (message (cond ((and (eq calc-mode-save-mode 'local) calc-embedded-info)
 417                    "Recording mode changes with [calc-mode: ...]")
 418                   ((eq calc-mode-save-mode 'edit)
 419                    "Recording mode changes with [calc-edit-mode: ...]")
 420                   ((eq calc-mode-save-mode 'perm)
 421                    "Recording mode changes with [calc-perm-mode: ...]")
 422                   ((eq calc-mode-save-mode 'global)
 423                    "Recording mode changes with [calc-global-mode: ...]")
 424                   ((eq calc-mode-save-mode 'save)
 425                    (format "Recording mode changes in \"%s\""
 426                            calc-settings-file))
 427                   (t
 428                    "Not recording mode changes permanently")))))
 429
 430 (defun calc-total-algebraic-mode (flag)
 431   (interactive "P")
 432   (if calc-emacs-type-19
 433       (error "Total algebraic mode not yet supported for Emacs 19"))
 434   (calc-wrapper
 435    (if (eq calc-algebraic-mode 'total)
 436        (calc-algebraic-mode nil)
 437      (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
 438                        '(total nil))
 439      (use-local-map calc-alg-map)
 440      (message
 441       "All keys begin algebraic entry; use Meta (ESC) for Calc keys"))))
 442
 443 (defun calc-algebraic-mode (flag)
 444   (interactive "P")
 445   (calc-wrapper
 446    (if flag
 447        (calc-change-mode '(calc-algebraic-mode
 448                            calc-incomplete-algebraic-mode)
 449                          (list nil (not calc-incomplete-algebraic-mode)))
 450      (calc-change-mode '(calc-algebraic-mode calc-incomplete-algebraic-mode)
 451                        (list (not calc-algebraic-mode) nil)))
 452    (use-local-map calc-mode-map)
 453    (message (if calc-algebraic-mode
 454                 "Numeric keys and ( and [ begin algebraic entry"
 455               (if calc-incomplete-algebraic-mode
 456                   "Only ( and [ begin algebraic entry"
 457                 "No keys except ' and $ begin algebraic entry")))))
 458
 459 (defun calc-symbolic-mode (n)
 460   (interactive "P")
 461   (calc-wrapper
 462
 463    (message (if (calc-change-mode 'calc-symbolic-mode n nil t)
 464                 "Inexact computations like sqrt(2) are deferred"
 465               "Numerical computations are always done immediately"))))
 466
 467 (defun calc-infinite-mode (n)
 468   (interactive "P")
 469   (calc-wrapper
 470    (if (eq n 0)
 471        (progn
 472          (calc-change-mode 'calc-infinite-mode 1)
 473          (message "Computations like 1 / 0 produce \"inf\""))
 474      (message (if (calc-change-mode 'calc-infinite-mode n nil t)
 475                   "Computations like 1 / 0 produce \"uinf\""
 476                 "Computations like 1 / 0 are left unsimplified")))))
 477
 478 (defun calc-matrix-mode (arg)
 479   (interactive "P")
 480   (calc-wrapper
 481    (calc-change-mode 'calc-matrix-mode
 482                      (cond ((eq arg 0) 'scalar)
 483                            ((< (prefix-numeric-value arg) 1)
 484                             (and (< (prefix-numeric-value arg) -1) 'matrix))
 485                            (arg (prefix-numeric-value arg))
 486                            ((eq calc-matrix-mode 'matrix) 'scalar)
 487                            ((eq calc-matrix-mode 'scalar) nil)
 488                            (t 'matrix)))
 489    (if (integerp calc-matrix-mode)
 490        (message "Variables are assumed to be %dx%d matrices"
 491                 calc-matrix-mode calc-matrix-mode)
 492      (message (if (eq calc-matrix-mode 'matrix)
 493                   "Variables are assumed to be matrices"
 494                 (if calc-matrix-mode
 495                     "Variables are assumed to be scalars (non-matrices)"
 496                   "Variables are not assumed to be matrix or scalar"))))))
 497
 498 (defun calc-set-simplify-mode (mode arg msg)
 499   (calc-change-mode 'calc-simplify-mode
 500                     (if arg
 501                         (and (> (prefix-numeric-value arg) 0)
 502                              mode)
 503                       (and (not (eq calc-simplify-mode mode))
 504                            mode)))
 505   (message (if (eq calc-simplify-mode mode)
 506                msg
 507              "Default simplifications enabled")))
 508
 509 (defun calc-no-simplify-mode (arg)
 510   (interactive "P")
 511   (calc-wrapper
 512    (calc-set-simplify-mode 'none arg
 513                            "All default simplifications are disabled")))
 514
 515 (defun calc-num-simplify-mode (arg)
 516   (interactive "P")
 517   (calc-wrapper
 518    (calc-set-simplify-mode 'num arg
 519                            "Default simplifications apply only if arguments are numeric")))
 520
 521 (defun calc-default-simplify-mode (arg)
 522   (interactive "p")
 523   (cond ((= arg 1)
 524          (calc-wrapper
 525           (calc-set-simplify-mode
 526            nil nil "Usual default simplifications are enabled")))
 527         ((= arg 0) (calc-num-simplify-mode 1))
 528         ((< arg 0) (calc-no-simplify-mode 1))
 529         ((= arg 2) (calc-bin-simplify-mode 1))
 530         ((= arg 3) (calc-alg-simplify-mode 1))
 531         ((= arg 4) (calc-ext-simplify-mode 1))
 532         ((= arg 5) (calc-units-simplify-mode 1))
 533         (t (error "Prefix argument out of range"))))
 534
 535 (defun calc-bin-simplify-mode (arg)
 536   (interactive "P")
 537   (calc-wrapper
 538    (calc-set-simplify-mode 'binary arg
 539                            (format "Binary simplification occurs by default (word size=%d)"
 540                                    calc-word-size))))
 541
 542 (defun calc-alg-simplify-mode (arg)
 543   (interactive "P")
 544   (calc-wrapper
 545    (calc-set-simplify-mode 'alg arg
 546                            "Algebraic simplification occurs by default")))
 547
 548 (defun calc-ext-simplify-mode (arg)
 549   (interactive "P")
 550   (calc-wrapper
 551    (calc-set-simplify-mode 'ext arg
 552                            "Extended algebraic simplification occurs by default")))
 553
 554 (defun calc-units-simplify-mode (arg)
 555   (interactive "P")
 556   (calc-wrapper
 557    (calc-set-simplify-mode 'units arg
 558                            "Units simplification occurs by default")))
 559
 560 (defun calc-auto-recompute (arg)
 561   (interactive "P")
 562   (calc-wrapper
 563    (calc-change-mode 'calc-auto-recompute arg nil t)
 564    (calc-refresh-evaltos)
 565    (message (if calc-auto-recompute
 566                 "Automatically recomputing `=>' forms when necessary"
 567               "Not recomputing `=>' forms automatically"))))
 568
 569 (defun calc-working (n)
 570   (interactive "P")
 571   (calc-wrapper
 572    (cond ((consp n)
 573           (calc-pop-push-record 0 "work"
 574                                 (cond ((eq calc-display-working-message t) 1)
 575                                       (calc-display-working-message 2)
 576                                       (t 0))))
 577          ((eq n 2) (calc-change-mode 'calc-display-working-message 'lots))
 578          ((eq n 0) (calc-change-mode 'calc-display-working-message nil))
 579          ((eq n 1) (calc-change-mode 'calc-display-working-message t)))
 580    (cond ((eq calc-display-working-message t)
 581           (message "\"Working...\" messages enabled"))
 582          (calc-display-working-message
 583           (message "Detailed \"Working...\" messages enabled"))
 584          (t
 585           (message "\"Working...\" messages disabled")))))
 586
 587 (defun calc-always-load-extensions ()
 588   (interactive)
 589   (calc-wrapper
 590    (if (setq calc-always-load-extensions (not calc-always-load-extensions))
 591        (message "Always loading extensions package")
 592      (message "Loading extensions package on demand only"))))
 593
 594
 595 (defun calc-matrix-left-justify ()
 596   (interactive)
 597   (calc-wrapper
 598    (calc-change-mode 'calc-matrix-just nil t)
 599    (message "Matrix elements will be left-justified in columns")))
 600
 601 (defun calc-matrix-center-justify ()
 602   (interactive)
 603   (calc-wrapper
 604    (calc-change-mode 'calc-matrix-just 'center t)
 605    (message "Matrix elements will be centered in columns")))
 606
 607 (defun calc-matrix-right-justify ()
 608   (interactive)
 609   (calc-wrapper
 610    (calc-change-mode 'calc-matrix-just 'right t)
 611    (message "Matrix elements will be right-justified in columns")))
 612
 613 (defun calc-full-vectors (n)
 614   (interactive "P")
 615   (calc-wrapper
 616    (message (if (calc-change-mode 'calc-full-vectors n t t)
 617                 "Displaying long vectors in full"
 618               "Displaying long vectors in [a, b, c, ..., z] notation"))))
 619
 620 (defun calc-full-trail-vectors (n)
 621   (interactive "P")
 622   (calc-wrapper
 623    (message (if (calc-change-mode 'calc-full-trail-vectors n nil t)
 624                 "Recording long vectors in full"
 625               "Recording long vectors in [a, b, c, ..., z] notation"))))
 626
 627 (defun calc-break-vectors (n)
 628   (interactive "P")
 629   (calc-wrapper
 630    (message (if (calc-change-mode 'calc-break-vectors n t t)
 631                 "Displaying vector elements one-per-line"
 632               "Displaying vector elements all on one line"))))
 633
 634 (defun calc-vector-commas ()
 635   (interactive)
 636   (calc-wrapper
 637    (if (calc-change-mode 'calc-vector-commas (if calc-vector-commas nil ",") t)
 638        (message "Separating vector elements with \",\"")
 639      (message "Separating vector elements with spaces"))))
 640
 641 (defun calc-vector-brackets ()
 642   (interactive)
 643   (calc-wrapper
 644    (if (calc-change-mode 'calc-vector-brackets
 645                          (if (equal calc-vector-brackets "[]") nil "[]") t)
 646        (message "Surrounding vectors with \"[]\"")
 647      (message "Not surrounding vectors with brackets"))))
 648
 649 (defun calc-vector-braces ()
 650   (interactive)
 651   (calc-wrapper
 652    (if (calc-change-mode 'calc-vector-brackets
 653                          (if (equal calc-vector-brackets "{}") nil "{}") t)
 654        (message "Surrounding vectors with \"{}\"")
 655      (message "Not surrounding vectors with brackets"))))
 656
 657 (defun calc-vector-parens ()
 658   (interactive)
 659   (calc-wrapper
 660    (if (calc-change-mode 'calc-vector-brackets
 661                          (if (equal calc-vector-brackets "()") nil "()") t)
 662        (message "Surrounding vectors with \"()\"")
 663      (message "Not surrounding vectors with brackets"))))
 664
 665 (defun calc-matrix-brackets (arg)
 666   (interactive "sCode letters (R, O, C, P): ")
 667   (calc-wrapper
 668    (let ((code (append (and (string-match "[rR]" arg) '(R))
 669                        (and (string-match "[oO]" arg) '(O))
 670                        (and (string-match "[cC]" arg) '(C))
 671                        (and (string-match "[pP]" arg) '(P))))
 672          (bad (string-match "[^rRoOcCpP ]" arg)))
 673      (if bad
 674          (error "Unrecognized character: %c" (aref arg bad)))
 675      (calc-change-mode 'calc-matrix-brackets code t))))
 676
 677 ;;; arch-tag: ecc70eea-c712-43f2-9085-4205e58d6ddf
 678 ;;; calc-mode.el ends here