lisp/calc/calc-help.el

   1 ;;; calc-help.el --- help display functions for Calc,
   2
   3 ;; Copyright (C) 1990, 1991, 1992, 1993, 2001, 2002, 2003, 2004, 2005,
   4 ;;   2006, 2007, 2008, 2009, 2010, 2011  Free Software Foundation, Inc.
   5
   6 ;; Author: David Gillespie <daveg@synaptics.com>
   7 ;; Maintainer: Jay Belanger <jay.p.belanger@gmail.com>
   8
   9 ;; This file is part of GNU Emacs.
  10
  11 ;; GNU Emacs is free software: you can redistribute it and/or modify
  12 ;; it under the terms of the GNU General Public License as published by
  13 ;; the Free Software Foundation, either version 3 of the License, or
  14 ;; (at your option) any later version.
  15
  16 ;; GNU Emacs is distributed in the hope that it will be useful,
  17 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 ;; GNU General Public License for more details.
  20
  21 ;; You should have received a copy of the GNU General Public License
  22 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 ;;; Commentary:
  25
  26 ;;; Code:
  27
  28 ;; This file is autoloaded from calc-ext.el.
  29
  30 (require 'calc-ext)
  31 (require 'calc-macs)
  32
  33 ;; Declare functions which are defined elsewhere.
  34 (declare-function Info-goto-node "info" (nodename &optional fork))
  35 (declare-function Info-last "info" ())
  36
  37
  38 (defun calc-help-prefix (arg)
  39   "This key is the prefix for Calc help functions.  See calc-help-for-help."
  40   (interactive "P")
  41   (or calc-dispatch-help (sit-for echo-keystrokes))
  42   (let ((key (calc-read-key-sequence
  43               (if calc-dispatch-help
  44                   "Calc Help options: Help, Info, Tutorial, Summary; Key, Function; ?=more"
  45                 (format "%s  (Type ? for a list of Calc Help options)"
  46                         (key-description (this-command-keys))))
  47               calc-help-map)))
  48     (setq key (lookup-key calc-help-map key))
  49     (message "")
  50     (if key
  51         (call-interactively key)
  52       (beep))))
  53
  54 (defun calc-help-for-help (arg)
  55   "You have typed `h', the Calc help character.  Type a Help option:
  56
  57 B  calc-describe-bindings.  Display a table of all key bindings.
  58 H  calc-full-help.  Display all `?' key messages at once.
  59
  60 I  calc-info.  Read the Calc manual using the Info system.
  61 T  calc-tutorial.  Read the Calc tutorial using the Info system.
  62 S  calc-info-summary.  Read the Calc summary using the Info system.
  63
  64 C  calc-describe-key-briefly.  Look up the command name for a given key.
  65 K  calc-describe-key.  Look up a key's documentation in the manual.
  66 F  calc-describe-function.  Look up a function's documentation in the manual.
  67 V  calc-describe-variable.  Look up a variable's documentation in the manual.
  68
  69 N  calc-view-news.  Display Calc history of changes.
  70
  71 C-c  Describe conditions for copying Calc.
  72 C-d  Describe how you can get a new copy of Calc or report a bug.
  73 C-w  Describe how there is no warranty for Calc."
  74   (interactive "P")
  75   (if calc-dispatch-help
  76       (let (key)
  77         (save-window-excursion
  78           (describe-function 'calc-help-for-help)
  79           (select-window (get-buffer-window "*Help*"))
  80           (while (progn
  81                    (message "Calc Help options: Help, Info, ...  press SPC, DEL to scroll, C-g to cancel")
  82                    (memq (car (setq key (calc-read-key t)))
  83                          '(?  ?\C-h ?\C-? ?\C-v ?\M-v)))
  84             (condition-case err
  85                 (if (memq (car key) '(?  ?\C-v))
  86                     (scroll-up)
  87                   (scroll-down))
  88               (error (beep)))))
  89         (calc-unread-command (cdr key))
  90         (calc-help-prefix nil))
  91     (let ((calc-dispatch-help t))
  92       (calc-help-prefix arg))))
  93
  94 (defun calc-describe-copying ()
  95   (interactive)
  96   (calc-info-goto-node "Copying"))
  97
  98 (defun calc-describe-distribution ()
  99   (interactive)
 100   (calc-info-goto-node "Reporting Bugs"))
 101
 102 (defun calc-describe-no-warranty ()
 103   (interactive)
 104   (calc-info-goto-node "Copying")
 105   (let ((case-fold-search nil))
 106     (search-forward "     NO WARRANTY"))
 107   (beginning-of-line)
 108   (recenter 0))
 109
 110 (defun calc-describe-bindings ()
 111   (interactive)
 112   (describe-bindings)
 113   (with-current-buffer "*Help*"
 114     (let ((inhibit-read-only t))
 115       (goto-char (point-min))
 116       (when (search-forward "Major Mode Bindings:" nil t)
 117         (delete-region (point-min) (point))
 118         (insert "Calc Mode Bindings:"))
 119       (when (search-forward "Global bindings:" nil t)
 120         (forward-line -1)
 121         (delete-region (point) (point-max)))
 122       (goto-char (point-min))
 123       (while
 124           (re-search-forward
 125            "\n[a-z] [0-9]\\( .*\n\\)\\([a-z] [0-9]\\1\\)*[a-z] \\([0-9]\\)\\1"
 126            nil t)
 127         (let ((dig1 (char-after (1- (match-beginning 1))))
 128               (dig2 (char-after (match-beginning 3))))
 129           (delete-region (match-end 1) (match-end 0))
 130           (goto-char (match-beginning 1))
 131           (delete-char -1)
 132           (delete-char 5)
 133           (insert (format "%c .. %c" (min dig1 dig2) (max dig1 dig2)))))
 134       (goto-char (point-min)))))
 135
 136 (defun calc-describe-key-briefly (key)
 137   (interactive "kDescribe key briefly: ")
 138   (calc-describe-key key t))
 139
 140 (defvar Info-history)
 141
 142 (defun calc-describe-key (key &optional briefly)
 143   (interactive "kDescribe key: ")
 144   (let ((defn (if (eq (key-binding key) 'calc-dispatch)
 145                   (let ((key2 (calc-read-key-sequence
 146                                (format "Describe key briefly: %s-"
 147                                        (key-description key))
 148                                calc-dispatch-map)))
 149                     (setq key (concat key key2))
 150                     (lookup-key calc-dispatch-map key2))
 151                 (if (eq (key-binding key) 'calc-help-prefix)
 152                     (let ((key2 (calc-read-key-sequence
 153                                  (format "Describe key briefly: %s-"
 154                                          (key-description key))
 155                                  calc-help-map)))
 156                       (setq key (concat key key2))
 157                       (lookup-key calc-help-map key2))
 158                   (key-binding key))))
 159         (inv nil)
 160         (hyp nil)
 161         calc-summary-indentation)
 162     (while (or (equal key "I") (equal key "H"))
 163       (if (equal key "I")
 164           (setq inv (not inv))
 165         (setq hyp (not hyp)))
 166       (setq key (read-key-sequence (format "Describe key%s:%s%s "
 167                                            (if briefly " briefly" "")
 168                                            (if inv " I" "")
 169                                            (if hyp " H" "")))
 170             defn (key-binding key)))
 171     (let ((desc (key-description key))
 172           target)
 173       (if (string-match "^ESC " desc)
 174           (setq desc (concat "M-" (substring desc 4))))
 175       (while (string-match "^M-# \\(ESC \\|C-\\)" desc)
 176         (setq desc (concat "M-# " (substring desc (match-end 0)))))
 177       (if (string-match "\\(DEL\\|\\LFD\\|RET\\|SPC\\|TAB\\)" desc)
 178           (setq desc (replace-match "<\\&>" nil nil desc)))
 179       (if briefly
 180           (let ((msg (with-current-buffer (get-buffer-create "*Calc Summary*")
 181                        (if (= (buffer-size) 0)
 182                            (progn
 183                              (message "Reading Calc summary from manual...")
 184                              (require 'info nil t)
 185                              (with-temp-buffer
 186                                (Info-mode)
 187                                (Info-goto-node "(Calc)Summary")
 188                                (goto-char (point-min))
 189                                (forward-line 1)
 190                                (copy-to-buffer "*Calc Summary*"
 191                                                (point) (point-max)))
 192                              (setq buffer-read-only t)))
 193                        (goto-char (point-min))
 194                        (setq case-fold-search nil)
 195                        (re-search-forward "^\\(.*\\)\\[\\.\\. a b")
 196                        (setq calc-summary-indentation
 197                              (- (match-end 1) (match-beginning 1)))
 198                        (goto-char (point-min))
 199                        (setq target (if (and (string-match "[0-9]\\'" desc)
 200                                              (not (string-match "[d#]" desc)))
 201                                         (concat (substring desc 0 -1) "0-9")
 202                                       desc))
 203                        (if (re-search-forward
 204                             (format "\n%s%s%s%s[ a-zA-Z]"
 205                                     (make-string (+ calc-summary-indentation 9)
 206                                                  ?\.)
 207                                     (if (string-match "M-#" desc) "   "
 208                                       (if inv
 209                                           (if hyp "I H " "  I ")
 210                                         (if hyp "  H " "    ")))
 211                                     (regexp-quote target)
 212                                     (make-string (max (- 6 (length target)) 0)
 213                                                  ?\ ))
 214                             nil t)
 215                            (let (pt)
 216                              (beginning-of-line)
 217                              (forward-char calc-summary-indentation)
 218                              (setq pt (point))
 219                              (end-of-line)
 220                              (buffer-substring pt (point)))))))
 221             (if msg
 222                 (let ((args (substring msg 0 9))
 223                       (keys (substring msg 9 19))
 224                       (prompts (substring msg 19 38))
 225                       (notes "")
 226                       (cmd (substring msg 40))
 227                       msg)
 228                   (if (string-match "\\` +" args)
 229                       (setq args (substring args (match-end 0))))
 230                   (if (string-match " +\\'" args)
 231                       (setq args (substring args 0 (match-beginning 0))))
 232                   (if (string-match "\\` +" keys)
 233                       (setq keys (substring keys (match-end 0))))
 234                   (if (string-match " +\\'" keys)
 235                       (setq keys (substring keys 0 (match-beginning 0))))
 236                   (if (string-match " [0-9,]+\\'" prompts)
 237                       (setq notes (substring prompts (1+ (match-beginning 0)))
 238                             prompts (substring prompts 0 (match-beginning 0))))
 239                   (if (string-match " +\\'" prompts)
 240                       (setq prompts (substring prompts 0 (match-beginning 0))))
 241                   (if (string-match "\\` +" prompts)
 242                       (setq prompts (substring prompts (match-end 0))))
 243                   (setq msg (format
 244                              "%s:  %s%s`%s'%s%s %s%s"
 245                              (if (string-match
 246                                   "\\`\\(calc-[-a-zA-Z0-9]+\\) *\\(.*\\)\\'"
 247                                   cmd)
 248                                  (prog1 (math-match-substring cmd 1)
 249                                    (setq cmd (math-match-substring cmd 2)))
 250                                defn)
 251                              args (if (equal args "") "" " ")
 252                              keys
 253                              (if (equal prompts "") "" " ") prompts
 254                              (if (equal cmd "") "" " => ") cmd))
 255                   (message "%s%s%s runs %s%s"
 256                            (if inv "I " "") (if hyp "H " "") desc
 257                            msg
 258                            (if (equal notes "") ""
 259                              (format "  (?=notes %s)" notes)))
 260                   (let ((key (calc-read-key t)))
 261                     (if (eq (car key) ??)
 262                         (if (equal notes "")
 263                             (message "No notes for this command")
 264                           (while (string-match "," notes)
 265                             (aset notes (match-beginning 0) ? ))
 266                           (setq notes (sort (car (read-from-string
 267                                                   (format "(%s)" notes)))
 268                                             '<))
 269                           (with-output-to-temp-buffer "*Help*"
 270                             (princ (format "%s\n\n" msg))
 271                             (set-buffer "*Calc Summary*")
 272                             (re-search-forward "^ *NOTES")
 273                             (while notes
 274                               (re-search-forward
 275                                (format "^ *%d\\. " (car notes)))
 276                               (beginning-of-line)
 277                               (let ((pt (point)))
 278                                 (forward-line 1)
 279                                 (or (re-search-forward "^ ? ?[0-9]+\\. " nil t)
 280                                     (goto-char (point-max)))
 281                                 (beginning-of-line)
 282                                 (princ (buffer-substring pt (point))))
 283                               (setq notes (cdr notes)))
 284                             (help-print-return-message)))
 285                       (calc-unread-command (cdr key)))))
 286               (if (or (null defn) (integerp defn))
 287                   (message "%s is undefined" desc)
 288                 (message "%s runs the command %s"
 289                          desc
 290                          (if (symbolp defn) defn (prin1-to-string defn))))))
 291         (if inv (setq desc (concat "I " desc)))
 292         (if hyp (setq desc (concat "H " desc)))
 293         (calc-describe-thing desc "Key Index" nil
 294                              (string-match "[A-Z][A-Z][A-Z]" desc))))))
 295
 296 (defvar calc-help-function-list nil
 297   "List of functions provided by Calc.")
 298
 299 (defvar calc-help-variable-list nil
 300   "List of variables provided by Calc.")
 301
 302 (defun calc-help-index-entries (&rest indices)
 303   "Create a list of entries from the INDICES in the Calc info manual."
 304   (let ((entrylist '())
 305         entry)
 306     (require 'info nil t)
 307     (while indices
 308       (condition-case nil
 309           (with-temp-buffer
 310             (Info-mode)
 311             (Info-goto-node (concat "(Calc)" (car indices) " Index"))
 312             (goto-char (point-min))
 313             (while (re-search-forward "\n\\* \\(.*\\): " nil t)
 314               (setq entry (match-string 1))
 315               (if (and (not (string-match "<[1-9]+>" entry))
 316                        (not (string-match "(.*)" entry))
 317                        (not (string= entry "Menu")))
 318                   (unless (assoc entry entrylist)
 319                     (setq entrylist (cons entry entrylist))))))
 320         (error nil))
 321       (setq indices (cdr indices)))
 322     entrylist))
 323
 324 (defun calc-describe-function (&optional func)
 325   (interactive)
 326   (unless calc-help-function-list
 327     (setq calc-help-function-list
 328           (calc-help-index-entries "Function" "Command")))
 329   (or func
 330       (setq func (completing-read "Describe function: "
 331                                   calc-help-function-list
 332                                   nil t)))
 333   (if (string-match "\\`calc-." func)
 334       (calc-describe-thing func "Command Index")
 335     (calc-describe-thing func "Function Index")))
 336
 337 (defun calc-describe-variable (&optional var)
 338   (interactive)
 339   (unless calc-help-variable-list
 340     (setq calc-help-variable-list
 341           (calc-help-index-entries "Variable")))
 342   (or var
 343       (setq var (completing-read "Describe variable: "
 344                                  calc-help-variable-list
 345                                  nil t)))
 346   (calc-describe-thing var "Variable Index"))
 347
 348 (defun calc-describe-thing (thing where &optional target not-quoted)
 349   (message "Looking for `%s' in %s..." thing where)
 350   (let ((savewin (current-window-configuration)))
 351     (calc-info-goto-node where)
 352     (or (let ((case-fold-search nil))
 353           (re-search-forward (format "\n\\* +%s: \\(.*\\)\\."
 354                                      (regexp-quote thing))
 355                              nil t))
 356         (and (string-match "\\`\\([a-z ]*\\)[0-9]\\'" thing)
 357              (re-search-forward (format "\n\\* +%s[01]-9: \\(.*\\)\\."
 358                                         (substring thing 0 -1))
 359                                 nil t)
 360              (setq thing (format "%s9" (substring thing 0 -1))))
 361         (progn
 362           (if Info-history
 363               (Info-last))
 364           (set-window-configuration savewin)
 365           (error "Can't find `%s' in %s" thing where)))
 366     (let (Info-history)
 367       (Info-goto-node (buffer-substring (match-beginning 1) (match-end 1))))
 368     (or (let ((case-fold-search nil))
 369           (or (re-search-forward (format "\\[`%s'\\]\\|(`%s')\\|\\<The[ \n]`%s'"
 370                                          (or target thing)
 371                                          (or target thing)
 372                                          (or target thing)) nil t)
 373               (and not-quoted
 374                    (let ((case-fold-search t))
 375                      (search-forward (or target thing) nil t)))
 376               (search-forward (format "`%s'" (or target thing)) nil t)
 377               (search-forward (or target thing) nil t)))
 378         (let ((case-fold-search t))
 379           (or (re-search-forward (format "\\[`%s'\\]\\|(`%s')\\|\\<The[ \n]`%s'"
 380                                          (or target thing)
 381                                          (or target thing)
 382                                          (or target thing)) nil t)
 383               (search-forward (format "`%s'" (or target thing)) nil t)
 384               (search-forward (or target thing) nil t))))
 385     (beginning-of-line)
 386     (message "Found `%s' in %s" thing where)))
 387
 388 (defun calc-view-news ()
 389   (interactive)
 390   (let ((path load-path))
 391     (while (and path
 392                 (not (file-exists-p (expand-file-name "calc.el" (car path)))))
 393       (setq path (cdr path)))
 394     (or (and path
 395              (file-exists-p (expand-file-name "README" (car path))))
 396         (error "Can't locate Calc sources"))
 397     (calc-quit)
 398     (switch-to-buffer "*Help*")
 399     (let ((inhibit-read-only t))
 400       (erase-buffer)
 401       (insert-file-contents (expand-file-name "README" (car path)))
 402       (search-forward "Summary of changes")
 403       (forward-line -1)
 404       (delete-region (point-min) (point))
 405       (goto-char (point-min)))
 406     (help-mode)))
 407
 408 (defvar calc-help-long-names '((?b . "binary/business")
 409                                (?g . "graphics")
 410                                (?j . "selection")
 411                                (?k . "combinatorics/statistics")
 412                                (?u . "units/statistics")))
 413
 414 (defun calc-full-help ()
 415   (interactive)
 416   (with-output-to-temp-buffer "*Help*"
 417     (princ "GNU Emacs Calculator.\n")
 418     (princ "  By Dave Gillespie.\n")
 419     (princ (format "  %s\n\n" emacs-copyright))
 420     (princ "Type `h s' for a more detailed summary.\n")
 421     (princ "Or type `h i' to read the full Calc manual on-line.\n\n")
 422     (princ "Basic keys:\n")
 423     (let* ((calc-full-help-flag t))
 424       (mapc (function (lambda (x) (princ (format "  %s\n" x))))
 425             (nreverse (cdr (reverse (cdr (calc-help))))))
 426       (mapc (function (lambda (prefix)
 427                         (let ((msgs (condition-case err
 428                                         (funcall prefix)
 429                                       (error nil))))
 430                           (if (car msgs)
 431                               (princ
 432                                (if (eq (nth 2 msgs) ?v)
 433                                    "\n`v' or `V' prefix (vector/matrix) keys: \n"
 434                                  (if (nth 2 msgs)
 435                                      (format
 436                                       "\n`%c' prefix (%s) keys:\n"
 437                                       (nth 2 msgs)
 438                                       (or (cdr (assq (nth 2 msgs)
 439                                                      calc-help-long-names))
 440                                           (nth 1 msgs)))
 441                                    (format "\n%s-modified keys:\n"
 442                                            (capitalize (nth 1 msgs)))))))
 443                           (mapcar (function (lambda (x)
 444                                     (princ (format "  %s\n" x))))
 445                                   (car msgs)))))
 446             '(calc-inverse-prefix-help
 447               calc-hyperbolic-prefix-help
 448               calc-inv-hyp-prefix-help
 449               calc-option-prefix-help
 450               calc-a-prefix-help
 451               calc-b-prefix-help
 452               calc-c-prefix-help
 453               calc-d-prefix-help
 454               calc-f-prefix-help
 455               calc-g-prefix-help
 456               calc-h-prefix-help
 457               calc-j-prefix-help
 458               calc-k-prefix-help
 459               calc-m-prefix-help
 460               calc-r-prefix-help
 461               calc-s-prefix-help
 462               calc-t-prefix-help
 463               calc-u-prefix-help
 464               calc-v-prefix-help
 465               calc-shift-Y-prefix-help
 466               calc-shift-Z-prefix-help
 467               calc-z-prefix-help)))
 468     (help-print-return-message)))
 469
 470 (defun calc-h-prefix-help ()
 471   (interactive)
 472   (calc-do-prefix-help
 473    '("Help; Bindings; Info, Tutorial, Summary; News"
 474      "describe: Key, C (briefly), Function, Variable")
 475    "help" ?h))
 476
 477 (defun calc-inverse-prefix-help ()
 478   (interactive)
 479   (calc-do-prefix-help
 480    '("I + S (arcsin), C (arccos), T (arctan); Q (square)"
 481      "I + E (ln), L (exp), B (alog: B^X); f E (lnp1), f L (expm1)"
 482      "I + F (ceiling), R (truncate); a S (invert func)"
 483      "I + a m (match-not); c h (from-hms); k n (prev prime)"
 484      "I + f G (gamma-Q); f e (erfc); k B (etc., lower-tail dists)"
 485      "I + V S (reverse sort); V G (reverse grade)"
 486      "I + v s (remove subvec); v h (tail)"
 487      "I + t + (alt sum), t M (mean with error)"
 488      "I + t S (pop std dev), t C (pop covar)")
 489    "inverse" nil))
 490
 491 (defun calc-hyperbolic-prefix-help ()
 492   (interactive)
 493   (calc-do-prefix-help
 494    '("H + S (sinh), C (cosh), T (tanh); E (exp10), L (log10)"
 495      "H + F (float floor), R (float round); P (constant \"e\")"
 496      "H + a d (total derivative); k c (permutations)"
 497      "H + k b (bern-poly), k e (euler-poly); k s (stirling-2)"
 498      "H + f G (gamma-g), f B (beta-B); v h (rhead), v k (rcons)"
 499      "H + v e (expand w/filler); V H (weighted histogram)"
 500      "H + a S (general solve eqn), j I (general isolate)"
 501      "H + a R (widen/root), a N (widen/min), a X (widen/max)"
 502      "H + t M (median), t S (variance), t C (correlation coef)"
 503      "H + c f/F/c (pervasive float/frac/clean)")
 504    "hyperbolic" nil))
 505
 506 (defun calc-inv-hyp-prefix-help ()
 507   (interactive)
 508   (calc-do-prefix-help
 509    '("I H + S (arcsinh), C (arccosh), T (arctanh)"
 510      "I H + E (log10), L (exp10); f G (gamma-G)"
 511      "I H + F (float ceiling), R (float truncate)"
 512      "I H + t S (pop variance)"
 513      "I H + a S (general invert func); v h (rtail)")
 514    "inverse-hyperbolic" nil))
 515
 516 (defun calc-option-prefix-help ()
 517   (interactive)
 518   (calc-do-prefix-help
 519    '("")
 520    "option" nil))
 521
 522 (defun calc-f-prefix-help ()
 523   (interactive)
 524   (calc-do-prefix-help
 525    '("miN, maX; Hypot; Im, Re; Sign; [, ] (incr/decr)"
 526      "Gamma, Beta, Erf, besselJ, besselY"
 527      "SHIFT + int-sQrt; Int-log, Exp(x)-1, Ln(x+1); arcTan2"
 528      "SHIFT + Abssqr; Mantissa, eXponent, Scale"
 529      "SHIFT + incomplete: Gamma-P, Beta-I")
 530    "functions" ?f))
 531
 532
 533 (defun calc-s-prefix-help ()
 534   (interactive)
 535   (calc-do-prefix-help
 536    '("Store, inTo, Xchg, Unstore; Recall, 0-9; : (:=); = (=>)"
 537      "Let; Copy, K=copy constant; Declare; Insert, Perm; Edit"
 538      "Negate, +, -, *, /, ^, &, |, [, ]; Map"
 539      "SHIFT + Decls, GenCount, TimeZone, Holidays; IntegLimit"
 540      "SHIFT + LineStyles, PointStyles, plotRejects; Units"
 541      "SHIFT + Eval-, AlgSimp-, ExtSimp-, FitRules")
 542    "store" ?s))
 543
 544 (defun calc-r-prefix-help ()
 545   (interactive)
 546   (calc-do-prefix-help
 547    '("digits 0-9: recall, same as `s r 0-9'"
 548      "Save to register, Insert from register")
 549    "recall/register" ?r))
 550
 551
 552 (defun calc-j-prefix-help ()
 553   (interactive)
 554   (calc-do-prefix-help
 555    '("Select, Additional, Once; eVal, Formula; Rewrite"
 556      "More, Less, 1-9, Next, Previous"
 557      "Unselect, Clear; Display; Enable; Breakable"
 558      "' (replace), ` (edit), +, -, *, /, RET (grab), DEL"
 559      "SHIFT + swap: Left, Right; maybe: Select, Once"
 560      "SHIFT + Commute, Merge, Distrib, jump-Eqn, Isolate"
 561      "SHIFT + Negate, & (invert); Unpack")
 562    "select" ?j))
 563
 564
 565 (defun calc-a-prefix-help ()
 566   (interactive)
 567   (calc-do-prefix-help
 568    '("Simplify, Extended-simplify, eVal; \" (exp-formula)"
 569      "eXpand, Collect, Factor, Apart, Norm-rat"
 570      "GCD, /, \\, % (polys); Polint"
 571      "Derivative, Integral, Taylor; _ (subscr)"
 572      "suBstitute; Rewrite, Match"
 573      "SHIFT + Solve; Root, miN, maX; Poly-roots; Fit"
 574      "SHIFT + Map; Tabulate, + (sum), * (prod); num-Integ"
 575      "relations: =, # (not =), <, >, [ (< or =), ] (> or =)"
 576      "logical: & (and), | (or), ! (not); : (if)"
 577      "misc: { (in-set); . (rmeq)")
 578    "algebra" ?a))
 579
 580
 581 (defun calc-b-prefix-help ()
 582   (interactive)
 583   (calc-do-prefix-help
 584    '("And, Or, Xor, Diff, Not; Wordsize, Clip"
 585      "Lshift, Rshift, roTate; SHIFT + signed Lshift, Rshift"
 586      "SHIFT + business: Pv, Npv, Fv, pMt, #pmts, raTe, Irr"
 587      "SHIFT + business: Sln, sYd, Ddb; %ch")
 588    "binary/bus" ?b))
 589
 590
 591 (defun calc-c-prefix-help ()
 592   (interactive)
 593   (calc-do-prefix-help
 594    '("Deg, Rad, HMS; Float; Polar/rect; Clean, 0-9; %"
 595      "SHIFT + Fraction")
 596    "convert" ?c))
 597
 598
 599 (defun calc-d-prefix-help ()
 600   (interactive)
 601   (calc-do-prefix-help
 602    '("Group, \",\"; Normal, Fix, Sci, Eng, \".\"; Over"
 603      "Radix, Zeros, 2, 8, 0, 6; Hms; Date; Complex, I, J"
 604      "Why; Line-nums, line-Breaks; <, =, > (justify); Plain"
 605      "\" (strings); Truncate, [, ]; SPC (refresh), RET, @"
 606      "SHIFT + language: Normal, One-line, Big, Unformatted"
 607      "SHIFT + language: C, Pascal, Fortran; TeX, LaTeX, Eqn"
 608      "SHIFT + language: Yacas, X=Maxima, A=Giac"
 609      "SHIFT + language: Mathematica, W=Maple")
 610    "display" ?d))
 611
 612
 613 (defun calc-g-prefix-help ()
 614   (interactive)
 615   (calc-do-prefix-help
 616    '("Fast; Add, Delete, Juggle; Plot, Clear; Quit"
 617      "Header, Name, Grid, Border, Key; View-commands, X-display"
 618      "x-axis: Range, Title, Log, Zero; lineStyle"
 619      "SHIFT + y-axis: Range, Title, Log, Zero; pointStyle"
 620      "SHIFT + Print; Device, Output-file; X-geometry"
 621      "SHIFT + Num-pts; Command, Kill, View-trail"
 622      "SHIFT + 3d: Fast, Add; CTRL + z-axis: Range, Title, Log")
 623    "graph" ?g))
 624
 625
 626 (defun calc-k-prefix-help ()
 627   (interactive)
 628   (calc-do-prefix-help
 629    '("GCD, LCM; Choose (binomial), Double-factorial"
 630      "Random, random-Again, sHuffle"
 631      "Factors, Prime-test, Next-prime, Totient, Moebius"
 632      "Bernoulli, Euler, Stirling"
 633      "SHIFT + Extended-gcd"
 634      "SHIFT + dists: Binomial, Chi-square, F, Normal"
 635      "SHIFT + dists: Poisson, student's-T")
 636    "combinatorics" ?k))
 637
 638
 639 (defun calc-m-prefix-help ()
 640   (interactive)
 641   (calc-do-prefix-help
 642    '("Deg, Rad, HMS; Frac; Polar; Inf; Alg, Total; Symb; Vec/mat"
 643      "Working; Xtensions; Mode-save; preserve Embedded modes"
 644      "SHIFT + Shifted-prefixes, mode-Filename; Record; reCompute"
 645      "SHIFT + simplify: Off, Num, Default, Bin, Alg, Ext, Units")
 646    "mode" ?m))
 647
 648
 649 (defun calc-t-prefix-help ()
 650   (interactive)
 651   (calc-do-prefix-help
 652    '("Display; Fwd, Back; Next, Prev, Here, [, ]; Yank"
 653      "Search, Rev; In, Out; <, >; Kill; Marker; . (abbrev)"
 654      "SHIFT + time: Now; Part; Date, Julian, Unix, Czone"
 655      "SHIFT + time: newWeek, newMonth, newYear; Incmonth"
 656      "SHIFT + time: +, - (business days)"
 657      "digits 0-9: store-to, same as `s t 0-9'")
 658    "trail/time" ?t))
 659
 660
 661 (defun calc-u-prefix-help ()
 662   (interactive)
 663   (calc-do-prefix-help
 664    '("Simplify, Convert, Temperature-convert, Base-units"
 665      "Autorange; Remove, eXtract; Explain; View-table; 0-9"
 666      "Define, Undefine, Get-defn, Permanent"
 667      "SHIFT + View-table-other-window"
 668      "SHIFT + stat: Mean, G-mean, Std-dev, Covar, maX, miN"
 669      "SHIFT + stat: + (sum), - (asum), * (prod), # (count)")
 670    "units/stat" ?u))
 671
 672
 673 (defun calc-v-prefix-help ()
 674   (interactive)
 675   (calc-do-prefix-help
 676    '("Pack, Unpack, Identity, Diagonal, indeX, Build"
 677      "Row, Column, Subvector; Length; Find; Mask, Expand"
 678      "Tranpose, Arrange, reVerse; Head, Kons; rNorm"
 679      "SHIFT + Det, & (inverse), LUD, Trace, conJtrn, Cross"
 680      "SHIFT + Sort, Grade, Histogram; cNorm"
 681      "SHIFT + Apply, Map, Reduce, accUm, Inner-, Outer-prod"
 682      "SHIFT + sets: V (union), ^ (intersection), - (diff)"
 683      "SHIFT + sets: Xor, ~ (complement), Floor, Enum"
 684      "SHIFT + sets: : (span), # (card), + (rdup)"
 685      "<, =, > (justification); , (commas); [, {, ( (brackets)"
 686      "} (matrix brackets); . (abbreviate); / (multi-lines)")
 687    "vec/mat" ?v))
 688
 689 (provide 'calc-help)
 690
 691 ;;; calc-help.el ends here