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1.1 root 1: .TH BESSEL 3M
2: .CT 2 math
3: .SH NAME
4: besj0, besj1, besjn, besy0, besy1, besyn \(mi bessel functions
5: .SH SYNOPSIS
6: .nf
7: .B #include <math.h>
8: .PP
9: .B double besj0(x)
10: .B double x;
11: .PP
12: .B double besj1(x)
13: .B double x;
14: .PP
15: .B double besjn(n, x)
16: .B double x;
17: .PP
18: .B double besy0(x)
19: .B double x;
20: .PP
21: .B double besy1(x)
22: .B double x;
23: .PP
24: .B double besyn(n, x)
25: .B double x;
26: .fi
27: .SH DESCRIPTION
28: These functions calculate Bessel functions of the first
29: and second kinds for real arguments and integer orders.
30: .SH DIAGNOSTICS
31: Negative arguments cause
32: .I besy0, besy1,
33: and
34: .I besyn
35: to return a huge negative value
36: and set
37: .I errno
38: to
39: .BR EDOM .
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