invert_no_zero

caput.algorithms.invert_no_zero(x: numpy.typing.ArrayLike, out: numpy.typing.ArrayLike | None = None) → numpy.typing.ArrayLike

Return the reciprocal, but ignoring zeros.

Where x != 0 return 1/x; where x == 0, return 0. Importantly this routine does not produce a warning about zero division.

Parameters:

xarray_like

Array to invert

outarray_like, optional

Output array where the result is stored. Default is None, in which case a new array is created.

Returns:

outarray_like

The reciprocal of x. Where possible the output has the same memory layout as the input, if this cannot be preserved the output is C-contiguous. If out was not None, this is out.