PDL::Constants (3)

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NAME

PDL::Constants -- basic compile time constants for PDL

DESCRIPTION

This module is used to define compile time constant values for It uses the constant module for simplicity and availability. We'll need to sort out exactly which constants make sense but and E seem to be fundamental.

SYNOPSIS

 use PDL::Constants qw(PI E);
 print 'PI is ' . PI . "\n";
 print 'E  is ' .  E . "\n";

PI

The ratio of a circle's circumference to its diameter

DEGRAD

The The number of degrees of arc per radian (180/PI)

E

The base of the natural logarithms or Euler's number

I

The imaginary unit, " I*I == -1 "

J

The imaginary unit for engineers, " J*J == -1 "

COPYRIGHT & LICENSE

Copyright 2010 Chris Marshall (chm at cpan dot org).

This program is free software; you can redistribute it and/or modify it under the terms of either: the

General Public License as published by the Free Software Foundation; or the Artistic License.

See dev.perl.org/licenses for more information.