Changes since 5.18.1:
Backwards-incompatible changes:
* eigenvector: greater detail in return value
* package fft:
renamed ift to inverse_fft
fft and inverse_fft do not modify their arguments
fft and inverse_fft take 1 argument (complex), not 2
New items in core:
* new functions inverse_erf, inverse_erfc
New items in share:
* package hyperint: integration of some algebraic functions
* package hypergeometric: hypergeometric functions
* package linearalgebra: new function determinate_by_lu
* package abs_integrate: new functions floor_int, if_int
* package simplify_sum: extended Gosper algorithm
Other revisions:
* exp: rework implementation
* realpart, imagpart, cabs, carg: rework implementation
* revise exponential integral functions
* apropos: argument is a string, return Maxima user symbols only
* regularize implmentation of constant declaration
* pass options from Maxima command line to Lisp
* regularize use of some special variables
* package dynamics: revisions
* package fft: accept list as argument, other revisions
* package ezunits: revise code, revise and expand documentation
* package stats: test for the difference of two proportions
* package sarag: algorithm for the multivariate certificate
* package descriptive: more options for barsplot
* package draw: new object "mesh", new options
Bug fixes:
2805251: Absence of extract_categories.sh and others
2825092: %pi^2.0b0 does not evaluate numerically
2825082: %pi^1.0b0 --> floating point value
2824928: limit(sqrt(z)/b^z,z,inf)
2824909: exp(%i*%pi/4) not simplified
2801821: limit(x*expintegral_ei(x),x,0)
2797885: problem with integration
2795534: integrate(expintegral_ei(x),x,0,1) gives result with TRUE
2794173: Manpage gives incorrect website
2793827: internal error in integrate
2793294: derivative of gamma_incomplete
2792493: hgfred([1],[-5.2],x);
2787047: Assume has problems after a reset()
2779385: gudermannian function wrong
2727078: wrong limit(log(gamma(x+1))/x,x,0)
2721670: mattrace / FIX
2699862: derivative of polylogarithm
2298099: atan2 & logarc
2029041: a*sqrt(2)/2 unsimplified
2003386: float(elliptic_kc(1)) causes Lisp error
1986726: Integrating f(x) with limits after resetting throws an error
1927178: integrate(sin(t),t,%pi/4,3*%pi/4)
1923119: 1/sqrt(8)-sqrt(8)/8
1996354: unsimplifed result from expand
1899352: integrate asks about (y-1)(y+1) after assume(y^2>1)
1853191: rat(2/sqrt(2)),algebraic doesn't cancel
1731624: asked about sign of yx in integral containing only z
1480562: 2*a*2^k isn't simplified to a*2^(k+1)
1315837: limit(?foo)
1310619: example(do) and example(if) not working
1119228: limit(1/zeroa)
1053056: TIME(%) always yields 0.0
1041570: assume(abs(x)<1) should imply x<1 and x>-1
1023931: logabs not a defmvar
938134: diff(realpart) bogus
924868: defint log(sqrt(q^2-1)+1) asks about YX
826623: simplifer returns %i*%i
751934: Inconsistent simplification of 1.0*x etc
721575: 2/sqrt(2) doesn\'t simplify
660948: simplification of exp(%i*...)
631216: horner([...],x)/FIX
619927: (-1.0b0)^(1/3) vs (-1.0d0)^(1/3)
609464: 1+%e,numer and %e^%e,numer
unnumbered: 1 was mistakenly considered greater than 1.0
unnumbered: plot2d(x^(1/3), ...) fails
unnumbered: unexpected behavior in for loop with variable step
unnumbered: infinite loop for integrate(1/(x^5-1),x,1,inf)
unnumbered: integrate(1/(sin(x/3)^2+1),x,0,24)
unnumbered: integrate(1/(sin(x-3)^2+1),x,3,11)
unnumbered: ensure foo is a reset-able variable in reset(foo)
unnumbered: abs((sqrt(3)*%i/2-1/2)/(3*(%i/(6*sqrt(3))-1/6)^(1/3))
+(%i/(6*sqrt(3))-1/6)^(1/3)*(-sqrt(3)*%i/2-1/2))
unnumbered: makelist(): argument size appears restricted to integer
unnumbered: multiple batch calls in a batch file
unnumbered: integrate(f2(a*x-b)*x^3,x,minf,inf)
where f2(x):=(2*sigma^(3/2))/(%pi*x^4+2*%pi*sigma*x^2+%pi*sigma^2)
Backwards-incompatible changes:
* cut out broken code intended to support xgraph
New items in core:
* function bfallroots to compute polynomial roots with bigfloats
* general scheme for integrals of special functions
* exponential integrals
* incomplete beta function
* Fresnel integrals
* Lambert W function
New items in share:
* package minpack
* package colnew
* package z_transform
* package finance
Other revisions:
* additional special cases of integrals of power functions
* bigfloat arithmetic
* special functions (beta, gamma, error, Bessel, elliptic and inverse
elliptic, hypergeometric, Laplace functions and friends)
* new version of Imaxima user interface
* recognize integers in base greater than 10
* tex function can assign user function as TeX property
* revision and translation of message strings (incomplete)
* documentation revisions throughout
* patches for Clozure CL throughout
* build Maxima with ECL via build system used for other Lisps
* minor code clean-up throughout
* other improvements and bug fixes
and tested by Aleksej Saushev and Stathis Kamperis.
Major changes:
- Expand code for special functions
- quad_qagi accepts upper and lower limits instead of flags for limits
- Cut out solve_inconsistent_error
- new, alternate implementation of vector operations
- colorterm: simple output color-coding
Submitted by Aleksej Saushev in PR pkg/39404.
Changes since Maxima 5.15
Major changes:
* ECL can build Maxima via autoconf machinery
Other revisions:
* Revision and extension of code for exponential integral functions
* Revision and extension of code for hypergeometric functions
* share/contrib/amatrix: revisions
* share/contrib/gf: bug fixes
* share/contrib/sarag: revisions
* share/contrib/zeilberger: revisions
* share/contrib/graphs: revisions
* share/contrib/distrib: revisions and new test script
* share/contrib/maximaMathML: revisions
* share/tensor: additional demonstrations
* Patches for Lispworks and MCL
* Revisions and extensions of reference manual and its translations
Plus various bug fixes.
Backwards-incompatible changes:
* Disable verb => numerical evaluation scheme for math functions
Major changes:
* User interface Imaxima now packaged with Maxima
New items in share:
* share/contrib/bitwise: Bitwise operations on integers
* share/contrib/noninteractive: Catch asksign and askprop questions
and turn them into conditional expressions
* share/contrib/namespaces: A namespace implementation for Maxima
* share/contrib/amatrix: Matrix with underlying Lisp array
Other revisions:
* gf package: New version of gf package (Galois fields)
* tex function: Enable TeX output to output stream
* stringproc package: Revised printf; regex functions
* ezunits package: Dimensional analysis; physical constants
* quadpack functions: Return partially-evaluated expressions
* plot functions: New options; bug fixes
* tensor functions: Many improvements
* graphs package: Improvements
changes:
Backwards-incompatible changes:
* unstore, fassave, restore: cut out undocumented functions
New items in core:
* unique: function to return unique elements of a list
* New function float_approx_equal w/ associated global
variable float_approx_equal_tolerance (for test suite cases)
* Interface to Lisp string streams: make_string_input_stream,
make_string_output_stream, get_output_stream_string
New items in share:
* vector3d package (thanks to Walter Eastes)
* Script share/share_testsuite.mac to run tests in share
* share/contrib/topoly.lisp: new functions elim and elim_allbut
New items in tests:
* Commit test scripts written by Michael Wester
Other revisions:
* run_testsuite: only simplify expected results, do not evaluate, and
do not call ratsimp; now tests are more stringent than before
* equal: recognize Maxima and Lisp arrays and Maxima and Lisp strings
* find_root: evaluate arguments in an ordinary way
* apply, outermap: evaluate arguments in an ordinary way
* save, loadfile, tex, stringout, compfile: evaluate filename argument
* display code: output space characters (no tabs)
* share/linearalgebra: improved jacobian and hessian functions
* share/contrib/lsquares.mac: replaced with a new version
* share/draw: include geographical data from World Boundaries Database;
other modifications
* with_stdout: accepts an output stream as well as a filename
* share/contrib/topoly.lisp: many improvements in to_poly
* share/contrib/numericalio: accept stream as well as a filename
* many other minor improvements
changes:
* New lapack package (BLAS and LAPACK functions)
* Bug fixes and enhancements to plotting code
* Bug fixes and enhancements to Xmaxima user interface
* Revise Maxima reference manual (all languages)
* Some new add-on packages
* Several minor improvements
* Many bug fixes
changes:
* Expand and revise Maxima reference manual
* Fast integer factorization
* Improvements to plotting functions
* Improvements to Xmaxima user interface
* Several bug fixes to definite integral functions
* Several new add-on packages
* Many minor improvements
* Many bug fixes
major changes:
-Revision and expansion of linear algebra functions
-Revisions of floating-point function evaluation (sqrt, trigonometric)
-Replace existing definition of "conjugate" with a much more extensive
implementation
-Revision of evaluation and simplification of sum and product
-doc improvements, spanish/portuguese support
Significant changes from Maxima 5.9.1 to 5.9.2, in no particular order.
Magnitude of changes varies widely.
* Parser is now entirely case sensitive, built-in keywords and
variables are all lowercase only
* Regularize case in printed messages
* Improved TeXmacs interface, 2-d input
* Moved nset (finite set functions) into Maxima core
* Ported Mersenne twister rng to Maxima core
* English reference manual revised (form and content)
* Reference manual translated to Spanish and Portuguese
* Additional tutorial documents
* Discrete plots (for plot2d)
* Enhancements to tensor packages (Atensor, Ctensor, Itensor)
* Replaced Airy functions with much more extensive implementation
* Revisions to Bessel functions
o Bessel functions with real order and complex argument can be
evaluated numerically.
o bessel_j can be computed for negative real order.
* Revisions to gamma function
o Gamma function can be numerically evaluated for complex arguments.
* Revisions to elliptic functions
o Bugs 1165488 and 908185 fixed.
o Fixed issue where many of the routines were returning single-float
results instead of double-float when given rational args.
o elliptic_f with complex args can be numerically evaluated.
o Other inverse Jacobi routines can be evaluated at complex points.
* Extensive revisions to hypergeometric functions
o Adjusted routines to return the new names for the Bessel functions
(like bessel_j instead of %j).
o Similarly, any orthogonal polynomials now use the naming
conventions used by the specfun orthogonal polynomial package.
o Corrected many errors in implementation.
o Some missing internal functionality added.
o Bug 1155241 fixed.
o Bug 1097915 fixed.
o Branch cuts for various relationships between hypergeometric
functions and Legendre functions were implemented or corrected.
* Revised kill function (fixed several bugs, helps test suite run correctly)
* Revised code to run test suite
* Display noun forms 'for and 'if correctly
* Display if -- then -- elseif correctly
* Adjust placement of newlines between output lines
* Establish configuration variable *MAXIMA-TEMPDIR*, make use in plotting
* Cleaned up autoload declarations
* Source code lowercase
* Regularize use of packages in Maxima core
* Misc code cleanups incl. sloop -> ANSI loop, rename private let and let*
* New share files:
share/defstruct.lisp: define structured objects, also multiple assignment
share/contrib/descriptive/: descriptive statistics
share/contrib/diffequations/tests/: several new tests
share/contrib/distrib/: probability distributions
share/contrib/plotdf.lisp: direction field plotting
share/contrib/sarag/: real algebraic geometry
share/contrib/state/: state variable equations
share/contrib/unit/: units of measurement
share/contrib/Zeilberger/: hypergeometric summation
share/linearalgebra/: linear algebra
share/numeric/interpol.mac: Lagrange polynomial interpolation
share/tensor/: many new examples
* Other bug fixes:
590222 (power series)
853830 (sum)
1045821 (describe)
618280 (entier)
512736 (alphalessp)
620928 (cfratsimp)
626728 (scanmap/bottomup)
904504 (sign1)
617021 (bfloat(%gamma))
1052308, 1036900 (limit)
1038584 (integrate)
1169996 (example)
1274656 (dribble)
1179646, 1110733, 1070509 (tex)
1234221 (ev)
1216157 (kill-operator)
797401 (infix)
1173788 (prefix, postfix, nary, matchfix, nofix, and infix)
1290386, 1156759, 1107784 (plot2d)
1179660 (bfloat)
904295 (ratweight)
808772, 808772 (realpart)
783051 (expand)
1178648 (setup_autoload)
1175992 (playback)
1103687 (compile_file, translate_file)
