NAME

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

SYNOPSIS

  use Math::Libm ':all';

  print "e = ", M_E, "\n";
  print "pi/2 = ", M_PI_2, "\n";
  print "erf(1) = ", erf(1), "\n";
  print "hypot(3,4) = ", hypot(3,4), "\n";

  my $signgam = 0;
  my $y = lgamma_r(-0.5, $signgam);
  print "signgam=$signgam lgamma=$y\n";

DESCRIPTION

This module is a translation of the C math.h file. It exports the following selected constants and functions.

EXPORT

None by default.

Exportable constants

  M_1_PI
  M_2_PI
  M_2_SQRTPI
  M_E
  M_LN10
  M_LN2
  M_LOG10E
  M_LOG2E
  M_PI
  M_PI_2
  M_PI_4
  M_SQRT1_2
  M_SQRT2

Exportable functions

  double acos(double x)
  double acosh(double x)
  double asin(double x)
  double asinh(double x)
  double atan(double x)
  double atanh(double x)
  double cbrt(double x)
  double ceil(double x)
  double cosh(double x)
  double erf(double x)
  double erfc(double x)
  double expm1(double x)
  double floor(double x)
  double hypot(double x, double y)
  double j0(double x)
  double j1(double x)
  double jn(int n, double x)
  double lgamma_r(double x, int signgam)
  double log10(double x)
  double log1p(double x)
  double pow(double x, double y)
  double rint(double x)
  double sinh(double x)
  double tan(double x)
  double tanh(double x)
  double y0(double x)
  double y1(double x)
  double yn(int n, double x)

AUTHOR

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

BUGS

Only tested on AIX 4.2, FreeBSD 4.0, Linux 2.2.16, and Solaris 2.5.1. May need some more functions.