Calculates binomial coefficient

# gmp_binomial

(PHP 7 >= 7.3.0, PHP 8)

gmp_binomial — Calculates binomial coefficient

### Description

gmp_binomial(GMP|int|string `$n`, int `$k`): GMP

Calculates the binomial coefficient C(n, k).

### Parameters

`n`

  A GMP object, an int, or a string that can be interpreted as a number following the same logic as if the string was used in gmp_init() with automatic base detection (i.e. when `base` is equal to 0).

`k`

### Return Values

Returns the binomial coefficient C(n, k).

### Errors/Exceptions

Throws ValueError if `k` is negative. Prior to PHP 8.0.0, `E_WARNING` was issued instead.

### Changelog

Version | Description
--- | ---
8.0.0 | This function no longer returns `false` on failure.

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open