Evaluates the Kelvin function of the first kind, ber, of order zero.
Synopsis
#include <imsl.h>
float imsl_f_kelvin_ber0 (float x)
The type double function is imsl_d_kelvin_ber0.
Required Arguments
float x
(Input)
Argument for which the function value is desired.
Return Value
The Kelvin function of the first kind, ber, of order zero evaluated at x.
Description
The Kelvin function ber0(x) is defined to be ÂJ0(xe3pi/4). The Bessel function J0(x) is defined
The function imsl_f_kelvin_ber0 is based on the work of Burgoyne (1963).
Example
In this example, ber0 (0.4) is evaluated.
#include <imsl.h>
main()
{
float x = 0.4;
float ans;
x =
imsl_f_kelvin_ber0 (x);
printf
("ber0(0.4) = %f\n", x);
}
Output
ber0(0.4) = 0.999600
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