1Math::Symbolic::Custom:U:sDeerfaCuolnttMroidbsu(t3e)d PeMralthD:o:cSuymmebnotlaitci:o:nCustom::DefaultMods(3)
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6 Math::Symbolic::Custom::DefaultMods - Default Math::Symbolic
7 transformations
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10 use Math::Symbolic;
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13 This is a class of default transformations for Math::Symbolic trees.
14 Likewise, Math::Symbolic::Custom::DefaultTests defines default tree
15 testing routines. For details on how the custom method delegation
16 model works, please have a look at the Math::Symbolic::Custom and
17 Math::Symbolic::Custom::Base classes.
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19 EXPORT
20 Please see the docs for Math::Symbolic::Custom::Base for details, but
21 you should not try to use the standard Exporter semantics with this
22 class.
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25 apply_derivatives()
26 Never modifies the tree in-place, but returns a modified copy of the
27 original tree instead.
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29 Applied to variables and constants, this method just clones.
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31 Applied to operators and if the operator is a derivative, this applies
32 the derivative to the derivative's first operand.
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34 Regardless what kind of operator this is called on, apply_derivatives
35 will be applied recursively on its operands.
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37 If the first parameter to this function is an integer, at maximum that
38 number of derivatives are applied (from top down the tree if possible).
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40 apply_constant_fold()
41 Does not modify the tree in-place by default, but returns a modified
42 copy of the original tree instead. If the first argument is true, the
43 tree will not be cloned. If it is false or not existant, the tree will
44 be cloned.
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46 Applied to variables and constants, this method just clones.
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48 Applied to operators, all tree segments that contain constants and
49 operators only will be replaced with Constant objects.
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51 mod_add_constant
52 Given a constant (object or number) as argument, this method tries hard
53 to fold it into an existing constant of the object this is called on is
54 already a sum or a difference.
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56 Basically, this is the same as "$tree + $constant" but does some
57 simplification.
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59 mod_multiply_constant
60 Given a constant (object or number) as argument, this method tries hard
61 to fold it into an existing constant of the object this is called on is
62 already a product or a division.
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64 Basically, this is the same as "$tree * $constant" but does some
65 simplification.
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68 Please send feedback, bug reports, and support requests to the
69 Math::Symbolic support mailing list: math-symbolic-support at lists dot
70 sourceforge dot net. Please consider letting us know how you use
71 Math::Symbolic. Thank you.
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73 If you're interested in helping with the development or extending the
74 module's functionality, please contact the developers' mailing list:
75 math-symbolic-develop at lists dot sourceforge dot net.
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77 List of contributors:
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79 Steffen MA~Xller, symbolic-module at steffen-mueller dot net
80 Stray Toaster, mwk at users dot sourceforge dot net
81 Oliver EbenhA~Xh
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84 New versions of this module can be found on http://steffen-mueller.net
85 or CPAN. The module development takes place on Sourceforge at
86 http://sourceforge.net/projects/math-symbolic/
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88 Math::Symbolic::Custom Math::Symbolic::Custom::DefaultDumpers
89 Math::Symbolic::Custom::DefaultTests Math::Symbolic
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93perl v5.12.0 2010-05M-a0t3h::Symbolic::Custom::DefaultMods(3)