/**
* Solve
*
* This function is called by the user to solve an equation within the parser system
* No internal functions or added advanced functions should ever call this. Sets
* the internal $infix variable for use in thrown exceptions. The variable array must
* be in the format of 'variable' => value. If variable array is scalar (ie 5), all
* variables will be replaced with it.
*
* @param $equation String Equation to Solve
* @param Array|Double $values variable values
* @return Float Answer to the equation
*/
public static function solve($equation, $values = null)
{
if (is_array($equation)) {
return self::solvePF($equation);
} else {
self::$inFix = $equation;
return self::solveIF($equation, $values);
}
}
/**
* Construct method
*
* Will initiate the class. If variable given, will assign to
* internal variable to solve with this::solveIF() without needing
* additional input. Initializing with a variable is not suggested.
*
* @see Parser::solveIF()
* @param String $inFix Standard format equation
*/
public function __construct($inFix = null)
{
if (defined('DEBUG') && DEBUG) {
self::$debug = true;
}
$this->inFix = isset($inFix) ? $inFix : null;
$this->postFix = array();
}