XLPack 7.0
XLPack Numerical Library (Excel VBA) Reference Manual
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◆ Ibetacib_sub()

Sub Ibetacib_sub ( Ret As  Double,
A As  Double,
X As  Double,
Q As  Double,
Optional Info As  Long 
)

Inverse function of b for normalized compliment of incomplete beta function 1 - Ix(a, b) (Subroutine version)

Purpose
Computes the inverse function of b for normalized compliment of incomplete beta function 1 - Ix(a, b).
Parameters
[out]RetInverse function of b for normalized compliment of incomplete beta function 1 - Ix(a, b).
[in]AArgument a. (A > 0)
[in]XArgument x. (0 < X < 1)
[in]QValue of 1 - Ix(a, b). (0 <= Q <= 1)
[out]Info(Optional) = 0: Successful exit.
= -1: The argument A had an illegal value. (A <= 0)
= -2: The argument X had an illegal value. (X <= 0 or X >= 1)
= -3: The argument Q had an illegal value. (Q < 0 or Q > 1)
= 1: Floating point range error.
Reference
boost/math/special_functions