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 MXller, symbolic-module at steffen-mueller dot net
         Stray Toaster, mwk at users dot sourceforge dot net
         Oliver EbenhXh

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