Regularized Lower Incomplete Gamma Function Calculator

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

* Enter a shape parameter $ s>0 $ and an upper limit $ x\ge0 $.

Step 1: Enter Parameters

Shape Parameter, $ s $:

e.g., 2

Upper Limit, $ x $:

e.g., 3

Calculated Regularized Gamma