Date: Aug 27, 2012 8:24 PM Author: Robert Dodier Subject: announcement: Maxima 5.28 Please distribute this message as you see fit.

Announcing Maxima 5.28

Maxima is a GPL'd branch of Macsyma, the venerable symbolic

computation system. Maxima 5.28 is a bug fix and feature

enhancement release. The current version is 5.28.0.

Maxima has functions to work with polynomials, matrices, finite sets,

integrals, derivatives and differential equations, linear algebra,

plotting, floating point and arbitrary-precision arithmetic, etc.

Maxima can run on MS Windows and various flavors of Unix,

including MacOS X.

There is a precompiled executable installer for Windows,

RPM's for Linux, and source code tar.gz.

Maxima is implemented in Common Lisp; several Lisps can compile

and run Maxima, including CMUCL, SBCL, Clisp, GCL, and ECL.

The Maxima project welcomes new participants. You can contribute

in several ways: reporting bugs, fixing bugs, writing new add-on

packages, revising core functions, user interfaces, documentation,

etc.

Why not see what's happening on the mailing list and consider how

you might contribute to the project.

Thanks to everyone who contributed to the 5.28 release.

Regards,

Robert Dodier

Maxima developer and 5.28 release manager

Project page:

http://sourceforge.net/projects/maxima

Documentation:

http://maxima.sourceforge.net/documentation.html

Bug reports. You must create a Sourceforge login

before filing a bug report (anonymous reports no longer allowed).

http://sourceforge.net/tracker/?group_id=4933&atid=104933

Mailing list. Please sign up before posting a message.

http://maxima.sourceforge.net/maximalist.html

Download page:

http://sourceforge.net/projects/maxima/files

Project home page:

http://maxima.sourceforge.net

Change log:

Maxima 5.28 change log

Backwards-incompatible changes:

* package stats: removed function simple_linear_regression

(superseded by

linear_regression)

New items in core:

* new function generalized_lambert_w

* new functions zn_mult_table, zn_power_table

* new functions for Galois fields: gf_set, gf_char, gf_prim, etc.

New items in share:

* package descriptive: new function principal_components

* package descriptive: new histogram style 'density'

* package stats: new function linear_regression

Other changes:

* revise system for building Maxima on MS Windows

* function gamma_incomplete: improve accuracy for complex bigfloats

* function expintegral_e: improved calculation for large imaginary

part

Bug fixes:

3539699: limit of atan2

3538167: Wrong result for definite integral

3534858: wrong answer: limit

3533723: abs_integrate causes stack overflow

3530767: integrate changes k[0] --> k(0)

3530272: nthroot, bad error msg

3529992: Shi (sinh integral) wrong branch, integrate inconsistent

3529144: Error integrating exp(-x)*sinh(sqrt(x)) with domain: complex

3526359: gamma_incomplete(1/5,-32.0) not accurate

3526111: float erf (%i) not working

3522750: assume & integrate

3521596: atan2(sqrt(1-u)*(u-1),1); /* hangup */

3517785: Wrong sign in exponential integral

3517034: polarform error on simple case

mailing list 2012-04-09: Loading gentran

mailing list 2012-03-27: bug in net present value

unnumbered: inequality facts being forgotten

unnumbered: limit(erfc(z), z, inf)

unnumbered: bug in animated_gif

unnumbered: Lisp output not readable

unnumbered: bigfloats parsed incorrectly when ibase is not 10