/**
* Convert if possible a supplied argument to a rational
*
* @param int|float|string|NumericTypeInterface $value
*
* @return \Chippyash\Math\Matrix\RationalNumber
*
* @throws \Chippyash\Matrix\Exceptions\MatrixException
* @throws \Exception
*/
protected function convertNumberToRational($value)
{
if ($value instanceof NumericTypeInterface) {
return $value->asRational();
}
switch (gettype($value)) {
case 'integer':
return RationalTypeFactory::create($value, 1);
case 'double':
return RationalTypeFactory::fromFloat($value);
case 'string':
try {
return RationalTypeFactory::fromString($value);
} catch (\Exception $e) {
try {
return ComplexTypeFactory::fromString($value)->asRational();
} catch (\Exception $ex) {
throw new MatrixException('The string representation of the number is invalid for a rational');
}
}
case 'NULL':
return RationalTypeFactory::create(0, 1);
case 'boolean':
return RationalTypeFactory::create($value ? 1 : 0, 1);
default:
throw new MatrixException('Rational expects int, float, string, Rational or NumericTypeInterface ');
}
}
/**
* Check for rational type, converting if necessary
*
* @param NumericTypeInterface $a
* @param NumericTypeInterface $b
* @return array [RationalType, RationalType]
*/
protected function checkRationalTypes(NumericTypeInterface $a, NumericTypeInterface $b)
{
$a1 = $a instanceof RationalType ? $a : $a->asRational();
$b1 = $b instanceof RationalType ? $b : $b->asRational();
return [$a1, $b1];
}
/**
* Check for float type, converting if necessary
*
* @param NumericTypeInterface $a
* @param NumericTypeInterface $b
* @return array [FloatType, FloatType]
*/
protected function checkFloatTypes(NumericTypeInterface $a, NumericTypeInterface $b)
{
$a1 = $a instanceof FloatType ? $a : $a->asFloatType();
$b1 = $b instanceof FloatType ? $b : $b->asFloatType();
return [$a1, $b1];
}
/**
* Compare int and float types
*
* @param NI $a
* @param NI $b
* @return int
*/
protected function intFloatCompare(NI $a, NI $b)
{
return $this->rationalCompare(RationalTypeFactory::fromFloat($a->asFloatType()), RationalTypeFactory::fromFloat($b->asFloatType()));
}
