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Top Forums Shell Programming and Scripting Perl - maths equation - need help Post 302288352 by pludi on Tuesday 17th of February 2009 03:55:09 AM
Old 02-17-2009
Perl doesn't support that out-of-the-box, but maybe this can help you: Math::Symbolic - Symbolic calculations - search.cpan.org (First & Third result when searching for "perl symbolic math")
 

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Math::Symbolic::Custom::DefaultDumpers(3pm)		User Contributed Perl Documentation	       Math::Symbolic::Custom::DefaultDumpers(3pm)

NAME
Math::Symbolic::Custom::DefaultDumpers - Default Math::Symbolic output routines SYNOPSIS
use Math::Symbolic qw/parse_from_string/; $term = parse_from_string(...); my ($sub, $leftover_trees) = $term->to_sub(); DESCRIPTION
This is a class of default output routines for Math::Symbolic trees. Likewise, Math::Symbolic::Custom::DefaultTests defines default tree testing routines and Math::Symbolic::Custom::DefaultMods has default tree modification methods. For details on how the custom method delegation model works, please have a look at the Math::Symbolic::Custom and Math::Symbolic::Custom::Base classes. EXPORT Please see the docs for Math::Symbolic::Custom::Base for details, but you should not try to use the standard Exporter semantics with this class. SUBROUTINES
to_string The to_string method is currently implemented in the module core namespaces and will be moved to Math::Symbolic::DefaultDumpers in a future release. Takes one optional argument indicating whether the Math::Symbolic tree should be transformed to a string using 'postfix' notation or using 'infix' notation. Default is infix which is also more likely to be reparseable by the Math::Symbolic parser. to_code This method is a wrapper around the compile_to_code class method in the Math::Symbolic::Compiler module. Takes key/value pairs of variables and integers as argument. The integers should starting at 0 and they determine the order of the variables/parameters to the compiled code. Returns the compiled code and a reference to an array of possible leftover tree elements that could not be compiled. Please refer to the Math::Symbolic::Compiler man page for details. to_sub This method is a wrapper around the compile_to_sub class method in the Math::Symbolic::Compiler module. Takes key/value pairs of variables and integers as argument. The integers should starting at 0 and they determine the order of the variables/parameters to the compiled code. Returns the compiled sub and a reference to an array of possible leftover tree elements that could not be compiled. Please refer to the Math::Symbolic::Compiler man page for details. AUTHOR
Please send feedback, bug reports, and support requests to the Math::Symbolic support mailing list: math-symbolic-support at lists dot sourceforge dot net. Please consider letting us know how you use Math::Symbolic. Thank you. If you're interested in helping with the development or extending the module's functionality, please contact the developers' mailing list: math-symbolic-develop at lists dot sourceforge dot net. List of contributors: Steffen Mueller, symbolic-module at steffen-mueller dot net Stray Toaster, mwk at users dot sourceforge dot net Oliver Ebenhoeh SEE ALSO
New versions of this module can be found on http://steffen-mueller.net or CPAN. The module development takes place on Sourceforge at http://sourceforge.net/projects/math-symbolic/ Math::Symbolic::Custom Math::Symbolic::Custom::DefaultMods Math::Symbolic::Custom::DefaultTests Math::Symbolic perl v5.10.1 2011-01-01 Math::Symbolic::Custom::DefaultDumpers(3pm)
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