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## The function : Beta

Beta takes as argument two reals a, b.
Beta returns the value of the function at a, b , defined by :

(x, y) = tx-1(1 - t)y-1 =

Remarkable values :

(1, 1) = 1,    (n, 1) = ,    (n, 2) =

Beta(x,y) is defined for x and y positive reals (to insure the convergence of the integral) and by prolongation for x and y if they are not negative integers.
Input :
Beta(5,2)
Output :
1/30
Input :
Beta(x,y)
Output :
Gamma(x)*Gamma(y)/Gamma(x+y)
Input :
Beta(5.1,2.2)
Output :
0.0242053671402

giac documentation written by Renée De Graeve and Bernard Parisse