The Secret Behind -1 Factorial

How to Take the Factorial of Any Number

What is the factorial of -½?

Introduction to the Gamma function & the Pi function (extending the factorial!)

The Mystery Behind This Math Miracle

Gamma Values of Negative Arguments

The Marvelous Leap From Factorial To The Gamma Function

|i Factorial| You Won't Believe The Outcome

Can we have negative factorial?

what is half factorial? (1/2)!=? via. Gamma function

Evaluating the gamma function of negative numbers -3/2 and -1/2 P 11-5-1

Factorial of a Negative Fraction?

I Found Out How to Differentiate Factorials!

MM59: Gamma (factorial) function

Why is Pi here? | Half factorial without Gamma function #SoME3

As a Matter of FACTORIAL! (Euler’s Gamma Function in Product Form and More…)

What Is The Factorial Of 1/2? SURPRISING (1/2)! = (√π)/2

Negative and fraction gamma function

#6_Gamma of Zero and Negative Integers See Graph of The Gamma Function

Gamma function of negative values (-1/2) | Lesson 5