public static function calculateFutureAmount( $amount, $interest, $periods )
	{
		Deprecation::getInstance()
			->setErrorVersion( '0.8.5' )
			->setExceptionVersion( '0.9' )
			->message( sprintf(
				'Please use %s (%s) instead',
				'public library "CeusMedia/Math"',
			 	'https://packagist.org/packages/ceus-media/math'
			) );
		if( (int) $periods < 1 )
			throw new InvalidArgumentException( "Periods must be at least 1." );
		$result	= $amount * pow( ( 1 + $interest / 100 ), (int) $periods );
		return $result;
	}