Regularized Lower Incomplete Gamma Function Calculator

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

e.g., 2

e.g., 3

Formula: \( P(s,x)=\frac{1}{\Gamma(s)}\int_0^x t^{s-1}e^{-t}\,dt \).