/**
 * @module gallery-mathcanvas
 */

/**********************************************************************
 * <p>Rotate a complex number around the origin.</p>
 * 
 * @namespace MathFunction
 * @class Rotate
 * @extends MathFunction.FunctionWithArgs
 * @constructor
 * @param f {MathFunction}
 */

function MathRotate(
	/* MathFunction */	v,
	/* MathFunction */	a)
{
	MathRotate.superclass.constructor.call(this, MathRotate.NAME, v, a);
}

MathRotate.NAME = 'rotate';

Y.extend(MathRotate, MathFunctionWithArgs,
{
	/**
	 * @method evaluate
	 * @param var_list {Object} map of variable names to values or MathFunctions
	 * @return the value of the function
	 */
	evaluate: function(
		/* map */	var_list)
	{
		return Y.ComplexMath.rotate(this.args[0].evaluate(var_list),
									this.args[1].evaluate(var_list));
	}
});

MathFunction.Rotate = MathRotate;

MathFunction.name_map[ MathRotate.NAME ] =
{
	applyTo: function(f)
	{
		return new MathRotate(f, new Y.MathFunction.Input());
	}
};