mars.tensor.special.poch#
- mars.tensor.special.poch(a, b, **kwargs)[source]#
Pochhammer symbol.
The Pochhammer symbol (rising factorial) is defined as
\[(z)_m = \frac{\Gamma(z + m)}{\Gamma(z)}\]For positive integer m it reads
\[(z)_m = z (z + 1) ... (z + m - 1)\]See [dlmf] for more details.
- Parameters
z (array_like) – Real-valued arguments.
m (array_like) – Real-valued arguments.
- Returns
The value of the function.
- Return type
scalar or ndarray
References
- dlmf
Nist, Digital Library of Mathematical Functions https://dlmf.nist.gov/5.2#iii