J0

Section: C Library Functions (3)
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BSD mandoc
BSD 4

NAME

j0 j1 jn y0 y1 yn - bessel functions of first and second kind

SYNOPSIS

Fd #include <math.h> Ft double Fn j0 double x Ft double Fn j1 double x Ft double Fn jn int n double x Ft double Fn y0 double x Ft double Fn y1 double x Ft double Fn yn int n double x

DESCRIPTION

The functions Fn j0 and Fn j1 compute the Bessel function of the first kind of the order 0 and the order 1, respectively, for the real value Fa x ; the function Fn jn computes the Bessel function of the first kind of the integer order Fa n for the real value Fa x .

The functions Fn y0 and Fn y1 compute the linearly independent Bessel function of the second kind of the order 0 and the order 1, respectively, for the postive integer value Fa x (expressed as a double); the function Fn yn computes the Bessel function of the second kind for the integer order Fa n for the postive integer value Fa x (expressed as a double).

RETURN VALUES

If these functions are successful, the computed value is returned. On the VAX and Tahoe architectures, a negative Fa x value results in an error; the global variable errno is set to Er EDOM and a reserve operand fault is generated.

HISTORY

A set of these functions function appeared in AT&T System v7 .

This document was created by man2html, using the manual pages.
Time: 16:10:48 GMT, January 15, 2023