function BigRational::minus

Returns the difference of this number and the given one.

Parameters

BigNumber|int|float|string $that The number to subtract.:

Throws

MathException If the number is not valid.

File

vendor/brick/math/src/BigRational.php, line 213

Class

BigRational

An arbitrarily large rational number.

Namespace

Brick\Math

Code

public function minus(BigNumber|int|float|string $that) : BigRational {
    $that = BigRational::of($that);
    $numerator = $this->numerator
        ->multipliedBy($that->denominator);
    $numerator = $numerator->minus($that->numerator
        ->multipliedBy($this->denominator));
    $denominator = $this->denominator
        ->multipliedBy($that->denominator);
    return new BigRational($numerator, $denominator, false);
}