1. Easily compute Gamma values. You may enter integers , fractions or decimals (which uses the Lanczos Approximation). See below.

Similarly, Beta values can be found (which uses the Gamma Function):

After all this prep work, you can then find the Mean and Variance of the Beta Distribution AND evaluate the Beta CDF after entering the x-bounds, Alpha and Beta as shown below:

Gamma Distribution can be done similarly. See below.

Enter x, Alpha and Beta to find Gamma PDF:

And the Gamma CDF is evaluated , see below:

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