Function to calculate the inverse of the normalised incomplete gamma function. More...
Go to the source code of this file.
Namespaces | |
Foam | |
Namespace for OpenFOAM. | |
Functions | |
static scalar | minimaxs (const scalar P) |
static scalar | Sn (const scalar a, const scalar x) |
Function to calculate the inverse of the normalised incomplete gamma function.
Original source file invIncGamma.C
The algorithm is described in detain in reference:
DiDonato, A. R., & Morris Jr, A. H. (1986). Computation of the incomplete gamma function ratios and their inverse. ACM Transactions on Mathematical Software (TOMS), 12(4), 377-393.
All equation numbers in the following code refer to the above text and the algorithm in the function 'invIncGamma' is described in section 4.
Definition in file invIncGamma.C.