Difference between revisions of "Manuals/calci/GAMMAFUNCTION"

Revision as of 14:16, 28 November 2016

GAMMAFUNCTION (z)

This function gives the value of the Gamma function.
The Gamma function is defined to be an extension of the factorial to complex and real number arguments.
That is, if n is a positive integer:

$\Gamma (n)=(n-1)!$

Gamma function is defined for all complex numbers except the non-positive integers.
For complex numbers with a positive real part, it is defined via a convergent improper integral:

$\Gamma (z)=\int \limits _{0}^{\infty }x^{z-1}e^{-x}dx$

This function will return the result as NaN when the given number as negative or Non numeric.

@@ Line 10: / Line 10: @@
 *For complex numbers with a positive real part, it is defined via a convergent improper integral:
 <math>\Gamma (z) = \int\limits_{0}^{\infty} x^{z-1} e^{-x} dx </math>
+*This function will return the result as NaN when the given number as negative or Non numeric.
+==Examples==
+#GAMMAFUNCTION(2) = 1.0000026676984093
+#GAMMAFUNCTION(45.3) = 8.308990531109891e+54
+#GAMMAFUNCTION(-3) = NaN
+==See Also==
+*[[Manuals/calci/SUM | SUM]]
+*[[Manuals/calci/AVERAGE  | AVERAGE ]]
+*[[Manuals/calci/AVERAGEA  | AVERAGEA ]]