1Math::NumSeq::Even(3) User Contributed Perl DocumentationMath::NumSeq::Even(3)
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NAME

6       Math::NumSeq::Even -- even integers
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SYNOPSIS

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

14       The even integers,
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16           0, 2, 4, 6, 8, 10, ...
17           starting i=0
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FUNCTIONS

20       See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
21       classes.
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23       "$seq = Math::NumSeq::Even->new ()"
24           Create and return a new sequence object.
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26   Iterating
27       "$seq->seek_to_i($i)"
28           Move the current sequence position to $i.  The next call to
29           "next()" will return $i and corresponding value.
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31       "$seq->seek_to_value($value)"
32           Move the current i so that "next()" gives $value on the next call,
33           or if $value is an even integer then the next higher even.
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35   Random Access
36       "$value = $seq->ith($i)"
37           Return "2*$i".
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39       "$bool = $seq->pred($value)"
40           Return true if $value is even.
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42       "$i = $seq->value_to_i_ceil($value)"
43       "$i = $seq->value_to_i_floor($value)"
44           Return value/2 rounded up or down to the next integer.
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46       "$i = $seq->value_to_i_estimate($value)"
47           Return an estimate of the i corresponding to $value.
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SEE ALSO

50       Math::NumSeq, Math::NumSeq::Odd, Math::NumSeq::All
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HOME PAGE

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

56       Copyright 2010, 2011, 2012, 2013, 2014, 2016, 2019, 2020 Kevin Ryde
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58       Math-NumSeq is free software; you can redistribute it and/or modify it
59       under the terms of the GNU General Public License as published by the
60       Free Software Foundation; either version 3, or (at your option) any
61       later version.
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63       Math-NumSeq is distributed in the hope that it will be useful, but
64       WITHOUT ANY WARRANTY; without even the implied warranty of
65       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
66       General Public License for more details.
67
68       You should have received a copy of the GNU General Public License along
69       with Math-NumSeq.  If not, see <http://www.gnu.org/licenses/>.
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73perl v5.34.1                      2022-06-06             Math::NumSeq::Even(3)
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