# Kelvin1st

Advanced Analysis Library Only

void Kelvin1st (double x, int n, NIComplexNumber *be);

## Purpose

Computes the complex Kelvin function of the first kind. The complex-valued Kelvin function of the first kind of order v is a solution of the following complex-valued differential equation:

## Parameters

Input
Name | Type | Description
x | double-precision | The input parameter.
n | integer | The order of the Kelvin function.
Output
Name | Type | Description
be | complex number | The complex value of the Kelvin function of the first kind.

## Return Value

None.