1Libm(3)               User Contributed Perl Documentation              Libm(3)
2
3
4

NAME

6       Math::Libm - Perl extension for the C math library, libm
7

SYNOPSIS

9         use Math::Libm ':all';
10
11         print "e = ", M_E, "\n";
12         print "pi/2 = ", M_PI_2, "\n";
13         print "erf(1) = ", erf(1), "\n";
14         print "hypot(3,4) = ", hypot(3,4), "\n";
15
16         my $signgam = 0;
17         my $y = lgamma_r(-0.5, $signgam);
18         print "signgam=$signgam lgamma=$y\n";
19

DESCRIPTION

21       This module is a translation of the C math.h file.  It exports the
22       following selected constants and functions.
23
24   EXPORT
25       None by default.
26
27   Exportable constants
28         M_1_PI
29         M_2_PI
30         M_2_SQRTPI
31         M_E
32         M_LN10
33         M_LN2
34         M_LOG10E
35         M_LOG2E
36         M_PI
37         M_PI_2
38         M_PI_4
39         M_SQRT1_2
40         M_SQRT2
41
42   Exportable functions
43         double acos(double x)
44         double acosh(double x)
45         double asin(double x)
46         double asinh(double x)
47         double atan(double x)
48         double atanh(double x)
49         double cbrt(double x)
50         double ceil(double x)
51         double cosh(double x)
52         double erf(double x)
53         double erfc(double x)
54         double expm1(double x)
55         double floor(double x)
56         double hypot(double x, double y)
57         double j0(double x)
58         double j1(double x)
59         double jn(int n, double x)
60         double lgamma_r(double x, int signgam)
61         double log10(double x)
62         double log1p(double x)
63         double pow(double x, double y)
64         double rint(double x)
65         double sinh(double x)
66         double tan(double x)
67         double tanh(double x)
68         double y0(double x)
69         double y1(double x)
70         double yn(int n, double x)
71

AUTHOR

73       Daniel S. Lewart, <d-lewart@uiuc.edu>
74

SEE ALSO

76       perlfunc, Math::Complex, POSIX.
77

BUGS

79       Only tested on AIX 4.2, FreeBSD 4.0, Linux 2.2.16, and Solaris 2.5.1.
80       May need some more functions.
81
82
83
84perl v5.34.0                      2021-07-22                           Libm(3)