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.\"	@(#)j0.3	6.1 (Berkeley) 5/15/85
.\"
.TH J0 3M  "May 15, 1985"
.AT 3
.SH NAME
j0, j1, jn, y0, y1, yn \- bessel functions
.SH SYNOPSIS
.nf
.B #include <math.h>
.PP
.B double j0(x)
.B double x;
.PP
.B double j1(x)
.B double x;
.PP
.B double jn(n, x)
.B double x;
.PP
.B double y0(x)
.B double x;
.PP
.B double y1(x)
.B double x;
.PP
.B double yn(n, x)
.B double x;
.fi
.SH DESCRIPTION
These functions calculate Bessel functions of the first
and second kinds for real arguments and integer orders.
.SH DIAGNOSTICS
Negative arguments cause
.I y0, y1,
and
.I yn
to return a huge negative value and set
.I errno
to EDOM.

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