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NAME
Math::LP::Variable - variables used in linear programs
SYNOPSIS
use Math::LP::Variable;
# make a variable named x1
my $x1 = new Math::LP::Variable(name => 'x1');
# make an integer variable named x2
my $x2 = new Math::LP::Variable(name => 'x2', is_int => 1);
# make a variable named x3 initialized to 3.1415
my $x3 = new Math::LP::Variable(name => 'x3', value => '3.1415');
DESCRIPTION
DATA FIELDS
- name
-
a string with the name of the variable (required)
- is_int
-
a flag indicating whether the variable can only have integer values (optional, defaults to false)
- value
-
a number representing the value of the variable (optional)
- upper_bound
-
an upper bound to the value, defaults to 1E24
- lower_bound
-
a lower bound to the value, defaults to 0
- col_index
-
an integer number holding the index of the variable in the matrix of the LP the variable is used in (optional)
METHODS
Math::LP::Variable inherits all methods from Math::SimpleVariable, without adding any new methods.
SEE ALSO
More info on the base class is found in Math::SimpleVariable. The usage of Math::LP::Variables in linear programs is illustrated in Math::LP.
AUTHOR
Wim Verhaegen <wimv@cpan.org>
COPYRIGHT
Copyright(c) 2000-2001 Wim Verhaegen. All rights reserved. This program is free software; you can redistribute and/or modify it under the same terms as Perl itself.