# numpy.mod¶

`numpy.``mod`(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'remainder'>

Return element-wise remainder of division.

Computes the remainder complementary to the `floor_divide` function. It is equivalent to the Python modulus operator``x1 % x2`` and has the same sign as the divisor x2. The MATLAB function equivalent to `np.remainder` is `mod`.

Warning

This should not be confused with:

• Python 3.7’s math.remainder and C’s `remainder`, which computes the IEEE remainder, which are the complement to `round(x1 / x2)`.
• The MATLAB `rem` function and or the C `%` operator which is the complement to `int(x1 / x2)`.
Parameters: x1 : array_like Dividend array. x2 : array_like Divisor array. out : ndarray, None, or tuple of ndarray and None, optional A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs. where : array_like, optional Values of True indicate to calculate the ufunc at that position, values of False indicate to leave the value in the output alone. **kwargs For other keyword-only arguments, see the ufunc docs. y : ndarray The element-wise remainder of the quotient `floor_divide(x1, x2)`. This is a scalar if both x1 and x2 are scalars.

See also

`floor_divide`
Equivalent of Python `//` operator.
`divmod`
Simultaneous floor division and remainder.
`fmod`
Equivalent of the MATLAB `rem` function.

Notes

Returns 0 when x2 is 0 and both x1 and x2 are (arrays of) integers.

Examples

```>>> np.remainder([4, 7], [2, 3])
array([0, 1])
>>> np.remainder(np.arange(7), 5)
array([0, 1, 2, 3, 4, 0, 1])
```

numpy.fmod

numpy.modf