LexMath 1.0

IMPORTANT NOTE: First and last Release.

By DreamVB
Converted to PHP by HACKPRO TM (C) 2008-2009
Versión: 1.0
All rights reserved

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@author Heriberto Mantilla Santamaría
@version 1.0

Operators & Functions

Single Operators

Description	Operator	Uses
Addition	+	Expr + Expr
Subtraction	-	Expr - Expr
Multiplication	*	Expr * Expr
Division	/	Expr / Expr
Modulus	%	Expr % Expr
Parenthesis	()	(Expr)
Unary +	+	+(Expr)
Unary -	-	-(Expr)
Assign	=	Var = expr
Equals	=	Expr = Expr
Bitwise AND	&&	Expr && Expr
Bitwise OR	||	Expr || Expr

Keywords operators

Description	Operator	Uses
Bitwise AND	AND	Expr AND Expr
Bitwise OR	OR	Expr OR Expr
Bitwise XOR	XOR	Expr XOR Expr
Shift Left	SHL	Expr SHL Expr
Shift Right	SHR	Expr SHR Expr
Integer Division	DIV	Expr DIV Expr
Bitwise Not	NOT	Not Expr
Modulus	MOD	Expr MOD Expr

Bit Shifting

Description	Operator	Uses
Shift Left	<<	Expr << Expr
Shift Right	>>	Expr >> Expr

Some Inbuilt Functions

ABS	expr
ATN	expr
COS	expr
EXP	expr
LOG	expr
RND	expr
ROUND	expr
SGN	expr
SIN	expr
SQR	expr
TAN	expr
SUM	exprList Separated with a comma.
IFF	Truepart, Falsepart, Expression.

Built in variables

PI = 3.1415926535897931
E  = 2.71828182845905

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Examples

require_once('./lexmath.php');

$lex = new LexMath();

echo $lex->Calc('2 + 2 * (5 + 5)', true);
echo $lex->Calc('8+1/7*4+(9*4+1*(2+8))*6', true);
echo $lex->Calc('15 MOD 2', true);
echo $lex->Calc('2 ^ 2', true);
echo $lex->Calc('15 % 2', true);
echo $lex->Calc('(-5 + 3)', true);
echo $lex->Calc('(-5 + 3) / -5 * (-2.5) + 6', true);
echo $lex->Calc('PI', true);
echo $lex->Calc('E', true);