11.3.19.8.3. numpy.negative

numpy.negative(x[, out]) = <ufunc 'negative'>

Numerical negative, element-wise.

Parameters:

x : array_like or scalar

Input array.

Returns:

y : ndarray or scalar

Returned array or scalar: y = -x.

Examples

>>> np.negative([1.,-1.])
array([-1.,  1.])