MathParser\RationalMathParser Class Reference

Convenience class for using the MathParser library. More...

Public Member Functions
	setSimplifying ($flag)
	parse ($text)
	Parse the given mathematical expression into an abstract syntax tree. More...
	getTokenList ()
	Return the token list for the last parsed expression. More...
	getTree ()
	Return the AST of the last parsed expression. More...

Private Attributes
	$lexer
	StdMathLexer $lexer instance of StdMathLexer used for tokenizing.
	$parser
	Parser $parser instance of Parsed used for the actual parsing.
	$tokens
	Token[] $tokens list of tokens generated by the Lexer.
	$tree
	Node $tree AST generated by the parser.

Detailed Description

Convenience class for using the MathParser library.

StdMathParser is a wrapper for the StdMathLexer and Parser classes, and if you do not require any tweaking, this is the most straightforward way to use the MathParser library.

Example usage:

use MathParser::RationalMathParser;
use MathParser::Interpreting::Evaluator;
use MathParser::Interpreting::Differentiator;

$parser = new RationalMathParser();
$AST = $parser->parse('2x + 2y^2/sin(x)');

// Do whatever you want with the parsed expression,
// for example evaluate it.
$evaluator = new Evaluator([ 'x' => 1, 'y' => 2 ]);
$value = $AST->accept($evaluator);

// or differentiate it:
$d_dx = new Differentiator('x');
$derivative = $AST->accept($d_dx);
$valueOfDerivative = $derivative->accept($evaluator);

Member Function Documentation

MathParser\RationalMathParser::getTokenList

(

)

Return the token list for the last parsed expression.

Return values

Token[]

MathParser\RationalMathParser::getTree

(

)

Return the AST of the last parsed expression.

Return values

Node

MathParser\RationalMathParser::parse

(

$text

)

Parse the given mathematical expression into an abstract syntax tree.

Parameters

string

$text

Input

Return values

Node

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The documentation for this class was generated from the following file:

• src/MathParser/RationalMathParser.php