Steffen Müller >
Math-SymbolicX-Calculator-0.02 >
Math::SymbolicX::Calculator

Module Version: 0.02
Math::SymbolicX::Calculator - A representation of a Symbolic Calculator

# You probably want to use on of the interfaces instead such as # Math::SymbolicX::Calculator::Interface::Shell use Math::SymbolicX::Calculator; my $calc = Math::SymbolicX::Calculator->new(); my $cmd = $calc->new_command(...); # ... $calc->execute($cmd);

This class represents the state of a symbolic calculator. It is mainly a glorified state hash of variables and their contents.

It can execute commands which are represented by Math::SymbolicX::Calculator::Command objects and which operate on the symbol table on some way.

Any slot of the symbol table may either contain a Math::Symbolic tree or a Math::Symbolic::Custom::Transformation object.

Returns a new Calculator object.

This method is a short-cut to Math::SymbolicX::Calculator::Command's `new`

method and creates a new command object which can be executed using the Calculator object.

Executes the command given as first argument. The command should be a Math::SymbolicX::Calculator::Command object. Returns any return values of the command's execution. (This may be a list!)

Accesses the symbol table hash with the symbol name given as first argument. Valid symbol names match the regex `/[A-Za-z][A-Za-z0-9_]*/`

.

(This is read only.)

First argument must be a symbol name. Accesses the Calculator symbol table to fetch a transformation from it that is saved as the symbol.

If the smybol table contains a transformation in the specified slot, that transformation is returned.

If it contains a formula, it manufactures a transformation from that formula which amounts to replacing the specified symbol with the formula.

If an error occurrs, an error message will be returned instead of a `Math::Symbolic::Custom::Transformation`

object.

Math::SymbolicX::Calculator::Command, Math::SymbolicX::Calculator::Interface::Shell

Math::Symbolic, Math::Symbolic::Custom::Transformation

Steffen Müller, <smueller@cpan.org>

Copyright (C) 2006, 2013 by Steffen Müller

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.6 or, at your option, any later version of Perl 5 you may have available.

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