chf_1F1 {scModels} | R Documentation |
Kummer's function (also: confluent hypergeometric function of the first kind) for numeric (non-complex) values and input parameters in log-scale.
chf_1F1(x, a, b)
x |
numeric value or vector |
a , b |
numeric parameters of the Kummer function |
Note that the output is in log-scale. So the evaluated function is:
\log \left[\sum_{n=0}^\infty \frac{a^{(n)} x^n}{ b^(n) n!}\right]
where a^{(n)}
and b^{(n)}
describe the rising factorial.
x <- chf_1F1(-100:100, 5, 7)
plot(-100:100, x, type='l')