polygamma

class saiunit.lax.polygamma(x, y, unit_to_scale=None, **kwargs)

Elementwise polygamma: \(\psi^{(m)}(x)\).

Parameters:

• x (Union[Array, ndarray, number, bool, saiunit.Quantity]) – The order of the polygamma function.

• y (Union[Array, ndarray, number, bool, saiunit.Quantity]) – The argument.

• unit_to_scale (Optional[saiunit.Unit]) – If provided, inputs are scaled by this unit before applying the function.

Returns:

result – Always unitless.

Return type:

Array