Lower Incomplete Gamma Function Calculator

Compute the lower incomplete gamma function: $$ \gamma(s,x)=\int_0^x t^{s-1}e^{-t}\,dt = P(s,x)\,\Gamma(s). $$

* Enter the shape parameter $ s>0 $ and the limit $ x\ge0 $.

Step 1: Enter Parameters

Shape Parameter, $ s $:

e.g., 2

Upper Limit, $ x $:

e.g., 3

Calculated Lower Incomplete Gamma