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BAS (version 1.2.1)

hypergeometric1F1: Confluent hypergeometric2F1 function

Description

Compute the Confluetn Hypergeometric function: 1F1(a,b,c,t) = Gamma(b)/(Gamma(b-a)Gamma(a)) Int_0^1 t^(b-1) (1 - t)^(b-a-1) exp(c t) dt

Usage

hypergeometric1F1(a,b,c, laplace=FALSE, log=TRUE)

Arguments

a
arbitrary
b
Must be greater 0
c
arbitrary
laplace
The default is to use the Cephes library; for large a or s this may return an NA, Inf or negative values,, in which case you should use the Laplace approximation.
log
if TRUE, return log(1F1)

References

Cephes library hyp1f1.c

Examples

Run this code
hypergeometric1F1(11.14756, 0.5, 0.00175097)

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