Do you know everything about Factorials?


When I was in 7th grade at Amity Junior High School in Orange Connecticut, I gave a presentation on Factorial numbers.


 


Here’s some interesting code:


 


 


FOR i = 1 TO 80


      ?i,Factorial(i),SQRT(2*PI()*i)*(i/EXP(1))^i


ENDFOR


 


PROCEDURE Factorial(n)


      IF n=1


            RETURN n


      ENDIF


RETURN n*Factorial(n-1)


 


     


What do the base of natural logs (exp(1) = 2.718281828…), PI (3.14159…) and the square root of 2 have to do with Factorial ?


 


(In case you were wondering, I did not include the transcendental math in my 7th grade presentation)


 


I don’t know everything about the fascinating Factorials!

Comments (3)

  1. Brad Schulz says:

    Gee, and I thought my presentation on "The Fascinating Facets of Nine" (showing all the cool properties of the number 9 and its multiples) was cool in the 7th grade science fair at Carey School in San Mateo, CA (http://www.careyschool.com/).

    Thanks for the interesting math tidbit. I read more about Stirling’s Approximation at Answers.com: http://www.answers.com/Stirling‘s%20approximation

  2. Eeeeeepppp!!! Transendental mathmatics. Everyone run for your lives!!!

  3. tima numbere says:

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    thank you