What Is The Factorial Of 1/2? SURPRISING (1/2)! = (√π)/2
4:55
YouTubeMindYourDecisions
What Is The Factorial Of 1/2? SURPRISING (1/2)! = (√π)/2
Type 0.5! in your calculator to see what the factorial of one-half is. The result will be 0.886..., and the exact answer is the square root of pi divided by 2--amazing! How is this possible, when the factorial of a number n is defined as n! = n(n-1)(n-2)...1 and this definition only makes sense for whole numbers? The calculator result is not an ...
1.8M viewsDec 10, 2014
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