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LME Reference — mathematical functions
169
Examples
gamma(5)
24
gamma(-3)
inf
gamma(-3.5)
0.2701
See also
beta, gammaln, gammainc, factorial
gammainc
Incomplete gamma function.
Syntax
y = gammainc(x,a)
Description
gammainc(x,a) gives the incomplete gamma function of x and a. Arguments and result are real (imaginary part is discarded). x must be
nonnegative. The incomplete gamma function is defined as
Z
1
gmminc(, ) =
t −1 e−t dt
() 0
Example
gammainc(2,1.5)
0.7385
See also
gamma, gammaln, betainc
gammaln
Logarithm of gamma function.
Syntax
y = gammaln(x)