
#1
Dec113, 10:40 AM

P: 99

If yes, then for what values of n?




#2
Dec113, 10:54 AM

Newcomer
P: 341

We usually only define ##n!## for natural numbers ##n##. Then ##n!## can never be negative.
There is however a very natural extension of the factorial, this is called the Pi function (which is just a translation of the Gamma function). This can indeed become negative as you can see from the graph: http://en.wikipedia.org/wiki/Gamma_function 



#3
Dec113, 05:33 PM

HW Helper
P: 2,169

If we extend the domain we can have negative numbers for example
1~(3.74768264672741260139148848269149969586163939513235551205229915)! 1~(3.45702473822080062303945414765117954323659790903378442096479450)! 



#4
Dec113, 07:08 PM

P: 99

Can n! ever be negative?
THAT is what I wanted to see. Thank you very much Sir.



Register to reply 
Related Discussions  
Does a negative natural log of a negative number cancel to become a positive log?  Calculus & Beyond Homework  10  
Why does inverting the base of a negative exponent cancel the negative?  General Math  4  
passive sign convention (negative watts, and negative current confusion)  Advanced Physics Homework  7  
Negative Voltage vs. Negative Pressure  Classical Physics  2 