scipy.special.poch

scipy.special.poch(x1, x2[, out]) = <ufunc 'poch'>

poch(z, m)

Rising factorial (z)_m

The Pochhammer symbol (rising factorial), is defined as:

(z)_m = gamma(z + m) / gamma(z)

For positive integer m it reads:

(z)_m = z * (z + 1) * ... * (z + m - 1)