NAME

App::MathImage::NumSeq::Harshad -- harshad numbers

SYNOPSIS

use App::MathImage::NumSeq::Harshad;
my $seq = App::MathImage::NumSeq::Harshad->new;
my ($i, $value) = $seq->next;

DESCRIPTION

The harshad numbers, sometimes called Niven numbers, being integers which are divisible by the sum of their digits

FUNCTIONS

$seq = App::MathImage::NumSeq::Harshad->new (key=>value,...)

$seq = App::MathImage::NumSeq::Harshad->new (radix => $r)

Create and return a new sequence object. The optional radix parameter (default 10, decimal) sets the base to use for the digits.

$bool = $seq->pred($value)

Return true if $value is a harshad number, ie. is divisible by the sum of its digits (in the radix of $seq).

SEE ALSO

App::MathImage::NumSeq

HOME PAGE

http://user42.tuxfamily.org/math-image/index.html

LICENSE

Copyright 2011 Kevin Ryde

Math-Image is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.

Math-Image is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with Math-Image. If not, see <http://www.gnu.org/licenses/>.