/**
* This method returns the value as a IDouble. Note: Using this method may result in
* lost of precision.
*
* @access public
* @static
* @param IRatio\Type $x the object to be converted
* @return IDouble\Type the value as a IDouble
*/
public static function toDouble(IRatio\Type $x) : IDouble\Type
{
return IRatio\Module::isInteger($x)->unbox() ? IInt32\Module::toDouble($x->numerator()) : IDouble\Module::divide(IInt32\Module::toDouble($x->numerator()), IInt32\Module::toDouble($x->denominator()));
}
/**
* This method tests the "divide" method.
*
* @dataProvider data_divide
*/
public function test_divide(array $provided, array $expected)
{
$p0 = IDouble\Module::divide(IDouble\Type::box($provided[0]), IDouble\Type::box($provided[1]));
$e0 = $expected[0];
$this->assertInstanceOf('\\Saber\\Data\\IDouble\\Type', $p0);
$this->assertSame($e0, $p0->unbox());
}
/**
* This method returns the average of all items in the list.
*
* @access public
* @static
* @param ISeq\Type $xs the sequence to be processed
* @return IDouble\Type the result
*/
public static function average(ISeq\Type $xs) : IDouble\Type
{
return $xs->__isEmpty() ? IDouble\Type::zero() : IDouble\Module::divide(static::sum($xs), $xs->length()->toDouble());
}
