# calc / README.prev

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Version 2.00 beta 3: * Removed version numbers from most .el files to reduce size of patches. * Added a "calc-version" command. * Changed M-# ? ?' to allow for modified describe-function. * Changed date parser to accept "Sept" as an alternative for "Sep". * Inhibited answers to exercise from showing up in table of contents. * Changed Makefile to say "texindex calc.[cfkptv]?" to avoid "calc.el". * Fixed up the Makefile in various other ways. * Rearranged banner at top of h h' command's output. * Changed "make summary" to print "Calc Summary" on the title page. * Added "IntegSimpRules". * Added M-# :', M-# _', and M-# Z' options. * Changed ^' to evaluate "[-3..-1]^-2" properly. * Improved f g' to give symbolic answers for, e.g., 101:2 and -3:2. * Fixed a bug where h k RET' didn't find the right place on the page. * Fixed a bug that formatted "x*(y ? a : b)" as "x y ? a : b". * Fixed a bug where defmath translated (< x 0) as (math-posp x)! * Fixed a bug that prevented quick-calc from working sometimes. * Fixed the z ?' bug again (maybe this time for good?). * Fixed a bug in which V ^' (vint) was just plain wrong, wrong, wrong! * Scanned for and fixed remaining bugs relating to autoloading. Version 2.00 beta 2: * Changed "make info" to try "make texinfo" if "makeinfo" not found. * Changed to "New for Calc 2.00"; texinfo.tex chokes on apostrophes. * Added List Tutorial Exercise 14 (just in case there weren't enough!). * Added a discussion of the Z F' command to the Programming Tutorial. * Improved H a f' not to lose info if input is partially pre-factored. * Improved simplification of expressions like sqrt(3) + 3^3:2. * Changed Big mode to omit "*" in expressions like 2 sqrt(3) 5^3:4. * Replaced European date format D/M/Y with D.M.Y. * Changed a N' and a X' to consider the endpoints of the interval. * Fixed a bug where TeX mode made c*(1+a/b) look like a function call. * Fixed a bug formatting top-level evalto's while using selections. * Fixed a bug that caused z ?' to crash. * Fixed a bug where Z F' broke for argument names "t" and "nil". * Fixed several bugs relating to autoloading. Version 2.00 beta 1: * Added "What's new in Calc 2.00" to the manual (summary of info below). * Added support for many GNUPLOT 3.0 features. * Tweaked the Makefile and calc-compile a bit more. * Modified to work with Zawinski's/Furuseth's optimizing byte compiler. * Modified Calc to garbage-collect less often (raised gc-cons-threshold). * Changed quick-calc to avoid autoloading so many parts of Calc. * Changed Calc subfiles to work properly if not byte-compiled. * Renamed M-# s' to M-# j', made M-# s' be equivalent to h s'. * Changed calc-quit to avoid reapportioning space among other windows. * Added M-DEL' (calc-pop-above) key, to DEL as LFD is to RET. * Added {' and }' to scroll vertically, analogous to <' and >'. * Added m t' for "total" algebraic mode. * Added d , \' option to group digits with "\,". * Improved support of "prime" accent in "eqn" language mode. * Changed macedit's read-kbd-macro to accept a string argument in Lisp. * Changed calc-check-defines to use a more concise run-hooks linkage. * Changed auto-why mode not to say [w=more] if next msg is not urgent. * Made a d' able to differentiate "a?b:c" and "a_i" formulas. * Changed probability dist. functions to work with a f' and a d'. * Added special constants "phi" and "gamma". * Added "poly" function, simpler cousin of "gpoly". * Added "pdeg", "plead", "pcont", "pprim"; cleaned up "pdiv" and "pgcd". * Added a p' command for polynomial interpolation. * Added a I' command for numerical integration; made IntegLimit variable. * Added a f' to factor polynomials; moved old a f' to a "'. * Added a a' to do partial fraction decompositions. * Improved a i' to integrate many more kinds of formulas. * Modified a P' to find numerical roots of high-degree polynomials. * Modified c 0' through c 9' to convert int-valued floats to integers. * Made sinh, arctanh, etc., expandable into exps/logs by a f'. * Added more algebraic simplifications having to do with logs and exps. * Changed s s', s t', s x', s l' to accept an equation at prompt. * Changed s i' not to store Decls if its value is the default, []. * Changed s i' to store in d O' language mode if in Normal or Big mode. * Rearranged V M'/V R' matrix mapping modes. * Added <#1+#2> notation for lambda expressions. * Extended b l' and other binary shifts to have a 2-argument version. * Changed u c' and u t' to give unitless result for unitless input. * Changed sqrt(1-cos(x)^2)-to-sin(x) to be an unsafe simplification. * Improved simplification of sqrts, e.g., sqrt(a^2 x + a^2 y). * Changed solver to treat (x-a)(x-b)(x-c) more intelligently. * Changed Pascal language mode to use "$FFFF" for hexadecimal numbers. * Added support for non-decimal display of floats. * Changed p' to refresh stack display if current float format uses it. * Changed Big mode to use subscript notation for log10(x), log(x,b), r#nnn. * Changed Big mode to format deriv(u,x) and tderiv(u,x) as du/dx. * Changed Big mode to format integ(1/x,x) as "dx/x" instead of "1/x dx". * Added "tty" output type for graphics commands. * Documented Calc's random number generation algorithm in the manual. * Fixed a bug involving having "(setq calc-timing t)" in .emacs. * Fixed a bug that incorrectly parsed "|x| - 1" in TeX mode. * Fixed bugs and made improvements in a R' when widening the guess. * Fixed a bug that where a S' didn't solve (x - a)^2 = (x - b)^2. * Fixed a bug that sometimes crashed a P' on systems of equations. * Fixed a bug that prevented b p' (calc-pack-bits) from working. * Fixed some bugs in which certain functions didn't get autoloaded. * Fixed a bug in which the date <1/1/13> was incorrectly parsed. * Fixed a bug which prevented j D' from expanding (a+b)/c. * Fixed a bug in solver: bad inverses for sinh and cosh. * Fixed a bug in math-possible-signs that failed for x*0. * Fixed a bug where sqrt(-a) was rewritten sqrt(a)*i even if a<0. * Fixed a bug in line breaker when first "word" of line was too long. * Worked around a makeinfo bug that handled @end group/@group badly. Version 2.00 alpha 3: * Changed logic for locating component .elc files to be even smarter. * Changed "make install" to "make compile"; added different "make install". * Improved "make compile" to check file dates and compile only when needed. * Made output of "make compile" in batch mode more compact and readable. * Replaced "Quick Overview" in manual with "Demonstration of Calc". * Changed to use keymaps for dispatching M-# and h prefix keys. * Added TAGS target to the Calc Makefile. * Removed most doc strings from functions; new help commands are better. * Got rid of some crufty "fset" calls that were cluttering the code. * Split calc-grab-region into two functions, calc-grab-region/-rectangle. * Swapped positions of stack and trail in full-calc-keypad display. * Improved line-breaking algorithm for displaying long formulas. * Improved display of control characters in vectors shown as strings. * Changed d o' to allow fraction format to specify desired denominator. * Changed M-# y' to respect overwrite mode in target buffer. * Added H' prefix to display-mode commands to suppress stack refresh. * Changed "calc-why" mechanism to display urgent messages automatically. * Handled taking derivatives of symbolic integrals and vice-versa. * Handled integrating vectors of formulas. * Incorporated Ewerlid's polynomial division and GCD functions into Calc. * Improved algebraic operations on "mod" forms, esp. polynomials. * Added some more financial functions (sln, syd, ddb). * Added nest, anest, fixp, and afixp (H V R' and H V U') functions. * Added a .' (calc-remove-equal) command to take apart equations. * Generalized dfact to work for negative odd integers; added !! syntax. * Changed k f' to factor 1, 0, and negative integers. * Changed u M', etc., to accept +/- and [ .. ] forms as distributions. * Changed g q' to remove *Gnuplot Commands/Trail* window if present. * Added support for Francois Pinard's "dumb terminal" driver for GNUPLOT. * Added ":: remember" feature for rewrite rules. * Changed rewrites to let pattern "a*b" match "x/2" with a=x, b=1/2. * Added ability to put function names like "simplify" in rewrite schedule. * Added "Rewrites Tutorial" to the manual. * Changed  to bind RET as newline instead of finish if editing a vector. * Added some new exercises to the List Tutorial. * Changed Z F', V M', etc. not to remove stored vars from def arg list. * Added parsing for /1, 2, 3/ notation for Fortran mode vectors. * Added a "%%" syntax for comments in formulas being read. * Fixed a bug in which failing h k' removed an existing Info window. * Fixed a bug in j /' operating on subformulas like "a + b". * Fixed a bug in which "inf = inf" undesirably evaluated to 1. * Fixed a bug that simplified "0 = 1 + a + 2" to "0 = a". * Fixed a bug that failed for rewrite patterns like "fib(1 ||| 2)". * Fixed a bug that arose because rewrite programs are non-reentrant. Version 2.00 alpha 2: * Changed LFD terminating algebraic entry to push in no-simplify mode. * Changed so that K -' interprets -' as calc-minus, not neg prefix arg. * Improved h c' command to understand all Calc key sequences. * Fixed problems with DistribRules, NegateRules, and FitRules. * Fixed several bad node pointers in the manual. * Fixed a bug in h C-w' when used with makeinfo-formatted manuals. * Fixed a bug in sqrt(-1) when Polar and HMS modes are enabled. * Fixed/improved dscalar and deven functions; added dodd. * Fixed a bug in polynomial handling that also affected sum(sin(k),k,1,n). * Fixed various other glitches in the manual. Version 2.00 alpha 1: * Calc's tar file now creates a calc-(version) directory to unpack into. * Calc now comes with a Makefile; install with "make install". * Calc now comes already split into many files; installation is much simpler. * Changed base file name of the manual from "calc-info" to "calc.info". * Key binding for M-# w' was documented but not implemented. * Bound M-# ' to be synonymous with M-# f' (used to be M-# q'). * Changed M-# M-# to use last interface of C or K; E no longer counts. * Changed i' (and M-# i') not to return to Top node unnecessarily. * Changed h' to be a prefix key with various help commands. * Changed s' to be a prefix key with various store and recall commands. * Keys i', r', and l' are obsolete (moved to h' and s' prefixes). * Rearranged K', X', and M-RET' keys; K' is now calc-keep-args. * Changed quick-calc to display input formula as well as output if room. * Changed quick-calc to interact with the editing buffer and kill ring. * Created pack, unpack, unpackt function equivalents of v p', v u'. * Changed to expand (a/b)^x to a^x/b^x only if b > 0 (not if a > 0). * Changed math-possible-signs to understand sqrt function. * Changed Z [, rewrites to consider any provably non-zero value as true. * Changed normal language modes to accept ** as a synonym for ^. * Added "maple" language mode. * Changed, e.g., Mathematica "(2 + 3 I)^(1.23*10^20)" to include parens. * Generalized math-compose-big properties for all language modes. * Introduced "string" and other function for composing expressions. * Changed many recursive vector routines to use loops instead. * Added evalv, evalvn function equivalents to =', N'. * Changed "expr =>" not to evaluate at all if in no-simplify mode. * Redesigned user interface of a F' (calc-curve-fit) command. * Added "phase" feature to the rewrite rule system. * Added "&&&", "|||", "!!!" to the rewrite rule system. * Introduced a new notation for rewrites: LHS := RHS :: COND. * Changed a r' (but not j r') to repeat 100 times by default. * Integrated EvalRules more cleanly into the default simplifications. * Added H v l' [mdims] to measure the dimensions of a matrix. * Changed u c' to interpret "/units" as "1/units". * Added u a' to adjust unit prefix letters automatically. * Changed u s' to enable scalar mode while simplifying. * Changed c f' [pfloat] not to float integer powers or subscripts. * Added a three-argument form for the "hms" function. * Changed, e.g., sin(90) degrees to produce 1 instead of 1.0. * Changed symbolic mode to prefer sqrt(int): abs([1 2 3]) => sqrt(14). * Enhanced solver to handle, e.g., x + 1/x = a; exp(x) + exp(-x) = a. * Enhanced simplifier to handle, e.g., exp(a+2) / e^a => e^2. * Enhanced a s' to simplify sqrt(x) - x^1:2 and exp(x) - e^x to 0. * Added -(a + b) to -a - b as a default simplification. * Added rules for differentiating sum() and prod() functions. * Added a few more energy units (due to Przemek Klosowski). * Added overflow/underflow checking for all floating-point arithmetic. * Extended error forms to work with complex numbers. * Generalized GCD to handle fractional arguments. * Changed graphics routines to evaluate "x" values, e.g., [-pi .. pi]. * Added g q', like g K' but without viewing the Gnuplot Trail. * Changed g p' and V M' to display better "Working..." messages. * Modified M-# g' to be more robust about grabbing formulas. * Added Y' prefix key reserved for user-written extensions. * Added calc-load-hook and calc-ext-load-hook. * Prevented calc-install from leaving large ~ files behind. * Changed @bullet to @bullet{} in manual to conform to texinfo spec. * Rearranged some chapters in the manual to be a bit more logical. * Added calc-split-summary command. * Fixed several bugs in embedded mode. * Fixed a bug in calc-vector-covariance that required a prefix arg. * Fixed a bug that prevented parsing "a=>" with no right-hand side. * Fixed a bug which allowed incorrectly dividing a vector by a vector. * Fixed a bug formatting sum(...)^2 in Big mode. * Fixed a bug that prevented Calc from deleting old graphics temp files. * Fixed some typos calling calc-inverse-func instead of calc-invert-func. * Fixed bugs in the derivatives of conj, deg, and rad; added re, im. * Fixed a bug where (r;theta) parsed as r exp(theta i) even in Deg mode. * Fixed a bug which gave wrong answer for exp of a polar complex number. * Fixed a bug in Z F' that failed if formula used non-arg variables. * Fixed a bad pointer to Info node "Assignments in Embedded Mode". * Fixed several errors in the Calc Summary. Version 1.08 beta 1: * Calc's copyright has been assigned to FSF, for inclusion in Emacs 19! * Changed M-# to be a two-key sequence; use M-# M-# to start Calc now. * Rewrote and expanded the introductory chapter of the manual. * Added a key and function summary to the manual. * Changed the manual to take better advantage of TeX's math formatting. * Changed manual to be printable in @smallbook format. * Added "calc-embedded" mode. * Added "=>" [evalto] operator. * Added facilities for date and date/time arithmetic. * Added a set of financial functions (pv, fv, etc.). * Added infinite quantities inf, uinf, and nan (plus infinite intervals). * Added "EvalRules", "SimpRules", and "ExtSimpRules" variables. * Added sum and product commands a +', a -', a *', a T'. * Enhanced a S' and a P' to solve systems of equations. * Enhanced solver to handle eqns like sin(x) = cos(2 x), sqrt(x) + x = 1. * Added a M' (calc-map-equation) command. * Added new statistical functions: mean, standard deviation, etc. * Added line, polynomial, and curve fitting commands (a L' and a F'). * Added support for composite units, e.g., "mi+ft+in". * Enhanced "Big" mode to format square roots, choose, and powers better. * Enhanced "Big" mode to display fractions in large notation. * Added several alternate formats for matrix display. * Changed TeX mode to write "(1 + x^2)" instead of "\left(1 + x^2\right)". * Added support for relational operators in TeX and FORTRAN modes. * Added recognition of accents like \dot, \tilde, \underline in TeX mode. * Added "eqn" language mode. * Added extra control over display justification with d <', d =', d >'. * Added calc-left-label and calc-right-label (d {', d }'). * Added "nn%" syntax for algebraic formulas; equivalent to "nn * .01". * Added input syntaxes like a = b = c, a != b != c, a <= b < c. * Changed "_" to mean subscripts; old use of "_" in vars is now "#". * Introduced "matrix mode" and "scalar mode" (m v'). * Introduced generic identity matrices (idn(1)). * Added a method for declaring variables to be real, integer, > 0, etc. * Added Z S' command for editing stored value of a variable. * Added "subst" algebraic function equivalent to the a b' command. * Added a f' command, changed deriv/integ/solve-for to use it. * Improved a s' to simplify (x + y) (y + x) to (x + y)^2. * Improved a s' to simplify i^2 to -1. * Improved a s' to simplify, e.g., sin(pi/3) in Symbolic mode. * Improved a s' to simplify sqrt(8) to 2 sqrt(2), 1/sqrt(2) to sqrt(2)/2. * Moved sin(arccos(x)) from a e' to a s'; not unsafe after all! * Changed (x y)^z => x^z y^z to be a usually-unsafe simplification. * Added thorough documentation of a s' and a e' to the manual. * Improved a c' to collect "f(a)" even if "a" also appears elsewhere. * Introduced lin, linnt, islin, islinnt functions for linearity testing. * Improved a x' to use binomial theorem to give simpler answers. * Improved j D' to distribute powers of sums: (a + b)^n. * Improved j M' to merge products of powers (may need no-simplify mode). * Changed to use defvar for DistribRules etc. so Z V' works with them. * Improved j *' and j /' to work properly in a few more cases. * Improved V R' to use identity value when reducing empty vectors. * Improved v p' and v u' to support more complex packing operations. * Disabled automatic simplification of sqrt(2)/2 to 1/sqrt(2). * Bound SPC and RET to press, TAB to next-menu in *Calc Keypad* buffer. * Added C-u ' to do algebraic entry with language mode forced to normal. * Added "$1", "2", etc. input notation for algebraic entry. * Changed unary operators like n', &' to treat neg prefix args like RET. * Changed  (calc-edit) to show full precision regardless of float format. * Enhanced quick-calc to display integers in several formats. * Documented g H' (calc-graph-hide) command (had been left from manual). * Enhanced floor/ceil/trunc/round in several ways. * Added rounde and roundu functions. * Changed c 1' through c 9' to change small floats to 0.0; added c 0'. * Enhanced set operations to work on sets of intervals. * Fixed erf(0), utpn(x,x,y), and arccosh(-1) to work properly. * Changed complex arctan and arctanh to follow Steele 2nd edition. * Expanded "Branch Cuts" section of the manual with some useful tables. * Rearranged order of words in mode line to be a bit more logical. * Changed m N' (num-simplify) mode to evaluate constant vectors, too. * Changed a r'/j r' to prompt twice for separate LHS/RHS if necessary. * Enhanced let(v,x)' in rewrites by allowing arbitrary patterns for v. * Changed cursor positioning in second prompt for a b' (calc-substitute). * Changed y' to omit line numbers more consistently. * Changed o' (calc-realign) to reset horizontal scrolling to zero, also. * Added "pred" mode for calc-eval. * Added "calc-report-bug" as an alias for "report-calc-bug". * Added Z T' and "calc-pass-errors" to aid debugging Calc-related code. * Added "calc-load-everything" (m X' or M-# L') command. * Enhanced calc-install to pre-build units table, CommuteRules, etc. * Changed Calc to interact more gracefully with load-path. * Changed Lisp Variable Index in manual to include user variables, too. * Fixed a bug that prevented calc-install from working under VMS. * Fixed a bug that sometimes crashed rewrites dealing with subtractions. * Fixed a bug that prevented a S' from solving "3 - x = 1 + x"! * Fixed a bug in solver that crashed for certain cubics and quartics. * Fixed a bug in calc-simplify that crashed for equations and ineqs. * Fixed a bug which placed the "[" oddly in d B' + v /' mode. * Fixed a bug where finishing calc-edit improperly obeyed language mode. * Fixed a bug formatting (-1)^n in Big mode after selection commands. * Fixed a bug that got ">=" and "<=" backwards in rewrite conditions. * Fixed a bug that broke the "x"' key in calc-keypad mode. * Fixed a bug in which MAP' in calc-keypad didn't display "Working...". * Fixed a bug where matrix division gave bad result for singular matrix. * Fixed a bug which closed Calc window if calc-grab-region got an error. * Fixed a bug where a s' failed on formulas containing dimension errors. * Fixed a bug that caused m F' to hang. * Fixed a bug in complex arithmetic that caused problems with solver. * Fixed a bug which raised intervals to interval powers incorrectly. * Fixed a bug in utpp/ltpp (order of arguments did not match the manual). * Fixed a bug in which t y' rounded yanked data with old precision. * Fixed a bug in which "in(3, [3 .. 3))" returned true. * Fixed a bug which simplified abs(abs(x)) incorrectly. * Fixed a bug in which (a^2)^1:3 was unsafely simplified to a^2:3. * Fixed a bug in rewrite system which missed pattern "2 sin(x) cos(x)". * Fixed a bug in rewrite system which missed pattern "a - a cos(x)^2". * Fixed obsolete trail tags gsmp, gneg, ginv to jsmp, jneg, jinv. * Fixed some errors and made improvements in units table [Ulrich Mueller]. Version 1.07: * Added m F' (calc-settings-file-name) command. * Added calc-autoload-directory variable. * Extended Z  to accept a prefix argument. * Added keystrokes (v h, v k) for head, tail, cons. * Extended v e' to accept a vector as the filler. * Changed V M', V R' to accept mapping-mode keys in uppercase, too. * Changed V M ' etc. to accept $,$, ... as argument indicators. * Changed t y' to accept a prefix argument. * Put in a cleaner and safer random number generator for k r' et al. * Fixed a bug which completely broke a r' command! * Fixed "0 * matrix" to generate a zero matrix instead of 0. * Fixed a bug in a R' which sometimes caused it to crash. * Fixed a fatal typo in the TeX version of the manual. * Fixed a bug that prevented C-k, C-w, M-w from working in Trail buffer. * Fixed another bug in Z P' command. * Fixed a bug in u s' which incorrectly simplified subtractions. * Fixed an argument-name aliasing bug evaluating lambda( ) formulas. * Fixed overfull hboxes in the manual. * Fixed various other bugs in the manual. Version 1.06: * Added "calc-keypad" mode for X window system users (try it!). * Improved "calc-eval" for calling/operating Calc from user-written Lisp. * Moved vector accumulate command to V U' (old H V R' still supported). * Added right-to-left reductions: I V R' and I V U'. * Added set operations on vectors: intersect, union, diff, xor. * Added I v s' to remove a subvector from a vector. * Introduced H |' to append two vectors with no magical special cases. * Introduced rhead, rtail, and rcons for isolating last vector element. * Changed g p' to keep temp files around until data actually change. * Improved a S' to solve many higher-order polynomial equations. * Added a P' to produce a vector of all solutions to an equation. * Enhanced a v' and j v' to allow top-level-only evaluation. * Changed j DEL' to delete a side of an eqn or ineq, leaving other side. * Fixed binding for keys j 1' through j 9'. * Introduced "let" marker in rewrite rules. * Enhanced the "sign" function to provide a two-argument version. * Changed "max-specpdl-size exceeded" error message to be user-friendly. * Put "" in the trail in above case and when user presses C-g. * Changed TeX mode to generate \ldots instead of \dots, recognize both. * Changed "sin(0)" etc. (for integer 0) to generate "0" instead of "0.". * Enhanced Programming Tutorial exercise 2. * Fixed an error in the answer to Types Tutorial exercise 3. * Fixed several bugs relating to head, tail, and cons functions. * Fixed some other minor typos in the manual. * Fixed several bugs in Z P' (calc-user-define-permanent). * Fixed several bugs that broke the g P' command. Version 1.05: * Created a calc-install command to ease installation. * Added lots of exercises to the Tutorial section of the manual. * Added ability to select and operate on sub-formulas. * Substantially improved the algebraic rewrite-rule system. * Added a set of graphing commands that use GNUPLOT. * Added a command (a R') for finding numerical roots to equations. * Added several new math functions, such as erf and Bessel functions. * Added key bindings for miscellaneous commands using the "f" prefix key. * Added lots of new vector operations, many of them in the spirit of APL. * Added more control over vector display, including an abbreviated mode. * Improved keyboard macro editing; added read-kbd-macro to macedit.el. * Introduced the m S' (calc-shift-prefix) command. * Enhanced the calc-edit command in several ways. * Made it possible to hit  (calc-edit) during numeric/algebraic entry. * Enhanced the calc-solve-for command to handle inequalities. * Enhanced calc-simplify to handle equations and inequalities. * Taught log10 and log to look for exact integer or rational results. * Added ability to take Nth roots directly. * Added "increment" and "decrement" commands for integers and floats. * Added "full-help" command, changed "h" key to invoke it. * Added special help for Inverse and Hyperbolic prefixes. * Added an optional prefix argument to o' (calc-realign). * Changed t s' and t r' to use RET as the search exit key. * Made handling of operator keys for V M, V R, etc. more regular. * Improved TeX mode; added support for \matrix format. * Added a variant of m a' mode that only affects ( and [ keys. * Fixed "Mismatch" message for algebraic entry of semi-open intervals. * Trimmed fat from calc.el to speed loading, moved more to calc-ext.el. * Fixed a bug in which minibuffer entry rounded to out-of-date precision. * Fixed a bug which crashed Calc 1.04 under Epoch. * Fixed a bug which messed up Calc Trail's mode line, among other things. * Fixed a bug which caused trail ">" to show only when in Trail buffer. * Fixed a bug in which "calc" called "calc-grab-region" with too few args. * Fixed bugs in both implementation and documentation of calc-perm. * Fixed a bug in which calc-simplify-extended always used radians. * Fixed a bug where calc-comma failed to override "polar" mode. * Fixed a bug doing mixed arithmetic on rectangular+polar complex numbers. * Fixed several bugs in transcendental functions with complex arguments. * Fixed a bug in which a s' simplified "x / .5" to ".5 x". * Fixed numerous other bugs in various parts of Calc. * Completed the "Hooks" section of the "Internals" chapter of the manual. Version 1.04: * Included a copy of revision history (from README) in calc.el. * Added the "calc-split" feature to split calc-ext.el into smaller bits. * Changed calc-unpack to unpack floats and fractions, too. * Added "mant", "xpon", and "scf" functions for decomposing floats. * Fixed a bug in the "y" command with positive prefix arguments. * Rearranged binary shift/rotate command keys to be a bit more convenient. * Fixed a bug in which simplifying "(0/0) * 2" crashed with a Lisp error. * Made H F' [ffloor] and friends faster for very large arguments. * Made calc-define-del more robust. * Handled pasting of data into the Calculator using the mouse under X. * Made overlay-arrow variables buffer-local to avoid interference. * Fixed a problem in which Calc Trail buffer got stuck after a C-x C-w. Version 1.03: * Changed math-choose to compute n-choose-m faster when m is large. * Fixed some problems with TeX mode. * Fixed a bug that prevented b s' from working without a prefix argument. * Added "calc-eval" function. * Improved calc-grab-region. Version 1.02: * Fixed a bug in Tutorial: telephone pole height/distance were switched! * Fixed a few other things in the manual. * Added "full-calc" command. * Added "calc-insert-variables" (Z I') command. * Quick Calc now works even if you are already in the minibuffer. * Fixed a bug in math-mul-bignum-digit which affected math-and, etc. * Definition of "Hectares" was wrong in units table. * Fixed a bug in calc-execute-kbd-macro concerning undo and refresh. * Bound "calc-undo" to C-x u' as well as C-_' and U'. Version 1.01: * Added a tutorial section to the manual. * Next and Prev for node Strings in the manual were reversed; fixed. * Changed "'bignum" in calc-isqrt-bignum-iter to "'bigpos". * Fixed a bug that prevented "" from working during algebraic entry. * Fixed a bug caused by an X (last-X) command following a K (macro) cmd. * Fixed a bug in which K command incorrectly formatted stack in Big mode. * Added space between unary operators and non-flat compositions. (Otherwise, "-(a/b)" in Big mode blended the minus sign into the rule!) * Fixed formatting of (-1)^n in Big mode. * Fixed some problems relating to "not" operator in Pascal language mode. * Fixed several bugs relating to V M ' and V M \$ sequences. * Fixed matrix-vector multiplication to produce a vector. * Introduced Z  ... Z ' commands; renamed old Z ' to Z #. * Fixed various other bugs. * Added calc-settings-file variable suggested by C. Witty. Version 1.00: * First official release of Calc. * If you used the Beta test version (0.01), you will find that this version of Calc is over 50% larger than the original release. General areas of improvement include much better algebra features; operations on units; language modes; simplification modes; interval arithmetic; vector mapping and reduction. Other new commands include calc-fraction and calc-grab-region. The program has been split into two parts for faster loading, and the manual is more complete.