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SAML, the Christmas release (961228)
Posted:
Dec 28, 1996 9:54 PM
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This is a (rather delayed) release of SAML, the Simple Algebraic Math
Library, a free C library for computer algebra. The tarball is available at
the usual place. There aren't many new features, this is essentially a
cleanup of 960828. The most important changes are:
o Documentation
The documentation has been moved to a separate subdirectory and
should be reasonably up-to-date.
o Library
* plugged a memory leak in Algext.c
* some changes in Ratio.c to accomodate for rational functions
* renamed header files
* the horrible parse_poly() has been removed, and replaced by a
generic saml_parse() which should be appropriate for all types, like
tensors. New files simple-parser.c and simple-lexers.c.
o Factorint
Factorint uses saml_parse() to read the numbers, which means that you can
write things like "factorint 2^67-1" and it will work.
o Induce
* We use saml_parse() now, which simplifies a few things.
* The static limit on the size of the interpreter stack has been removed.
* New syntax ~~ for modulo.
o Samuel
* Experimental support for rational functions.
* The lexical analyzer has been rewritten.
* Piping to a non-existent command will no longer kill samuel, we catch
SIGPIPE now.
* The "list-variables" command is now `??' instead of `?' since we use
the question-mark for something else.
* New syntax ~~ for the modulo operator, as in induce. For the moment
it's only syntactic sugar for an external function called modulo(), but
the goal is to ultimately replace the repeated-substitution operator `>>'
which is too low-level and very unsafe.
* It is now possible to read tensors (or other objects) from files and
pipes thanks to the new saml_parse() function, in particular you can
have functions returning tensors.
Your feedback would be very much appreciated (I'm serious). Send questions,
remarks, bug reports etc. either to me <bousch@topo.math.u-psud.fr> or to
the SAML mailing list <saml@topo.math.u-psud.fr>.
Here is the entry for the Linux Software Map:
Begin3
Title: SAML, the Simple Algebraic Math Library
Version: 961228
Entered-date: 28DEC96
Description: SAML is a C library for symbolic calculations, accompanied
by some application programs (samuel, factorint, induce).
The library provides an object-oriented framework for
defining and handling mathematical types, and implements
the most common data types of computer algebra: integers,
reals, fractions, complex numbers, polynomials, tensors,
matrices, etc.
The application programs consist of an interactive symbolic
calculator (samuel), a programming language (induce) and
a program to factorize integers (factorint).
Keywords: Computer algebra, C, library, symbolic calculus,
multiple-precision arithmetic, quadratic sieve
Author: bousch@topo.math.u-psud.fr (Thierry Bousch)
Maintained-by: bousch@topo.math.u-psud.fr (Thierry Bousch)
Primary-site: topo.math.u-psud.fr /pub/bousch
229kB saml-961228.tgz
Platforms: Requires a decent Un*x system, gcc 2.5.0 or later, gdbm,
perl and gmake. TeXinfo is needed for the documentation.
Bison and the readline library can be useful.
Copying-policy: GPL
End
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