1Math::NumSeq::HarshadNuUmsbeerrsC(o3n)tributed Perl DocuMmaetnht:a:tNiuomnSeq::HarshadNumbers(3)
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NAME

6       Math::NumSeq::HarshadNumbers -- numbers divisible by sum of digits
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SYNOPSIS

9        use Math::NumSeq::HarshadNumbers;
10        my $seq = Math::NumSeq::HarshadNumbers->new;
11        my ($i, $value) = $seq->next;
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DESCRIPTION

14       The harshad numbers 1 to 10, then 12, 18, 20, 21, etc, being integers
15       which are divisible by the sum of their digits.  For example 18 is a
16       harshad number because 18 is divisible by its digit sum 1+8=9.
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FUNCTIONS

19       See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
20       classes.
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22       "$seq = Math::NumSeq::HarshadNumbers->new ()"
23       "$seq = Math::NumSeq::HarshadNumbers->new (radix => $r)"
24           Create and return a new sequence object.
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26           The optional "radix" parameter (default 10, decimal) sets the base
27           to use for the digits.
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29       "$bool = $seq->pred($value)"
30           Return true if $value is a harshad number, ie. is divisible by the
31           sum of its digits (in the given "radix").
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SEE ALSO

34       Math::NumSeq, Math::NumSeq::DigitSum, Math::NumSeq::MoranNumbers
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HOME PAGE

37       <http://user42.tuxfamily.org/math-numseq/index.html>
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LICENSE

40       Copyright 2011, 2012, 2013, 2014, 2016, 2019, 2020 Kevin Ryde
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42       Math-NumSeq is free software; you can redistribute it and/or modify it
43       under the terms of the GNU General Public License as published by the
44       Free Software Foundation; either version 3, or (at your option) any
45       later version.
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47       Math-NumSeq is distributed in the hope that it will be useful, but
48       WITHOUT ANY WARRANTY; without even the implied warranty of
49       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
50       General Public License for more details.
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52       You should have received a copy of the GNU General Public License along
53       with Math-NumSeq.  If not, see <http://www.gnu.org/licenses/>.
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57perl v5.36.0                      2023-01-20   Math::NumSeq::HarshadNumbers(3)
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