Operators > Algebra Operators > Factorial Operator
  
Factorial Operator
Operator
Description
Keyboard Shortcut
Returns x· (x−1) · (x−2) · ... · 1
!
Operands
x is a nonnegative integer. x < 171.
Additional Information
For fractional factorials, use the gamma function:
Γ(x + 1) = x!