numpy.mod¶

numpy.
mod
(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'remainder'>¶ Return elementwise 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 tonp.remainder
ismod
.警告
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 toround(x1 / x2)
.  The MATLAB
rem
function and or the C%
operator which is the complement toint(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 freshlyallocated 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 keywordonly arguments, see the ufunc docs.
Returns:  y : ndarray
The elementwise remainder of the quotient
floor_divide(x1, x2)
. This is a scalar if both x1 and x2 are scalars.
参见
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])
 Python 3.7’s math.remainder and C’s