Lexer capable of recognizing all standard mathematical expressions. More...

Inheritance diagram for MathParser\Lexing\StdMathLexer:

Additional Inherited Members
Public Member Functions inherited from MathParser\Lexing\Lexer
	add (TokenDefinition $tokenDefinition)
	Add a Token to the list of tokens recognized by the Lexer. More...

	tokenize ($input)
	Convert an input string to a list of tokens. More...

Detailed Description

Lexer capable of recognizing all standard mathematical expressions.

Subclass of the generic Lexer, with TokenDefinition patterns for numbers, elementary functions, arithmetic operations and variables.

Recognized tokens

/?\d+/ matching integers matching
/sqrt/ matching square root function
/sinh/ matching hyperbolic sine
/cosh/ matching hyperbolic cosine
/tanh/ matching hyperbolic tangent
/coth/ matching hyperbolic cotangent
/sind/ matching sine (argument in degrees)
/cosd/ matching cosine (argument in degrees)
/tand/ matching tangent (argument in degrees)
/cotd/ matching cotangent (argument in degrees)
/sin/ matching sine
/cos/ matching cosine
/tan/ matching tangent
/cot/ matching cotangent
/arsinh|arcsinh|asinh/ matching inverse hyperbolic sine
/arcosh|arccosh|acosh/ matching inverse hyperbolic cosine
/artanh|arctanh|atanh/ matching inverse hyperbolic tangent
/arcoth|arccoth|acoth/ matching inverse hyperbolic cotangent
/arcsin|asin/ matching inverse sine
/arccos|acos/ matching inverse cosine
/arctan|atan/ matching inverse tangent
/arccot|acot/ matching inverse cotangent
/exp/ matching exponential function
/log10|lg/ matching logarithm (base 10)
/log|ln/ matching natural logarithm
/abs/ matching absolute value
/sgn/ matching signum function
/\(/ matching opening parenthesis (both as delimiter and function evaluation)
/\)/ matching closing parenthesisis (both as delimiter and function evaluation)
/\+/ matching + for addition (or unary +)
/\-/ matching - for subtraction (or unary -)
/\* / matching * for multiplication
/\// matching / for division
/\^/ matching ^ for exponentiation
/pi/ matching constant pi
/e/ matching constant e
/[a-zA-Z]/ matching variables (note that we only allow single letter identifiers, this improves parsing of implicit multiplication)
/\n/ matching newline
/\s+/ matching whitespace

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

src/MathParser/Lexing/StdMathLexer.php

Additional Inherited Members

Detailed Description

Recognized tokens