public function getValueFromIndex( $index )
	{
		$dimension	= $this->getDimension();
		if( $index < 0 )
			throw new OutOfRangeException( 'Vector Index ('.$index.') must be greater than 0.' );
		if( $index >= $dimension )
			throw new OutOfRangeException( 'Vector Index ('.$index.') must be lower than Vector Dimension ('.$dimension.').' );
		return $this->values[$index];
	}