Variable
pochhammer_max_index
Default value: 100
pochhammer (n, x)
expands to a product if and only if
n <= pochhammer_max_index
.
Examples:
(%i1) pochhammer (x, 3), pochhammer_max_index : 3; (%o1) x (x + 1) (x + 2) (%i2) pochhammer (x, 4), pochhammer_max_index : 3; (%o2) (x) 4
Reference: Abramowitz and Stegun, equation 6.1.16, page 256.