SphBessel1st

Advanced Analysis Library Only

double SphBessel1st (int n, double x);

Purpose

Computes the spherical Bessel function of the first kind of order n, which is a solution to the following differential equation:

The following equation shows the relationship of the spherical Bessel function of the first kind to the Bessel function of the first kind.

For any integer value of order n, the function is defined for nonnegative real values of x.

Parameters

Input
Name Type Description
n integer The order of the function.
x double-precision The point at which the Bessel function is evaluated.

Return Value

Name Type Description
result double-precision The value of the Bessel function evaluated at x.