NAME¶
Math::Symbolic::Custom::DefaultMods - Default Math::Symbolic transformations
SYNOPSIS¶
use Math::Symbolic;
DESCRIPTION¶
This is a class of default transformations for Math::Symbolic trees. Likewise,
Math::Symbolic::Custom::DefaultTests defines default tree testing routines.
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¶
apply_derivatives()¶
Never modifies the tree in-place, but returns a modified copy of the original
tree instead.
Applied to variables and constants, this method just clones.
Applied to operators and if the operator is a derivative, this applies the
derivative to the derivative's first operand.
Regardless what kind of operator this is called on, apply_derivatives will be
applied recursively on its operands.
If the first parameter to this function is an integer, at maximum that number of
derivatives are applied (from top down the tree if possible).
apply_constant_fold()¶
Does not modify the tree in-place by default, but returns a modified copy of the
original tree instead. If the first argument is true, the tree will not be
cloned. If it is false or not existant, the tree will be cloned.
Applied to variables and constants, this method just clones.
Applied to operators, all tree segments that contain constants and operators
only will be replaced with Constant objects.
mod_add_constant¶
Given a constant (object or number) as argument, this method tries hard to fold
it into an existing constant of the object this is called on is already a sum
or a difference.
Basically, this is the same as "$tree + $constant" but does some
simplification.
mod_multiply_constant¶
Given a constant (object or number) as argument, this method tries hard to fold
it into an existing constant of the object this is called on is already a
product or a division.
Basically, this is the same as "$tree * $constant" but does some
simplification.
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::DefaultDumpers
Math::Symbolic::Custom::DefaultTests Math::Symbolic