1Math::NumSeq::UndulatinUgsNeurmbCeornst(r3i)buted Perl DMoactuhm:e:nNtuamtSieoqn::UndulatingNumbers(3)
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NAME

6       Math::NumSeq::UndulatingNumbers -- numbers with alternating digits
7       ABABAB...
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SYNOPSIS

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

15       This is the sequence of numbers with digits ABABAB... alternating
16       between two values,
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18           0 ... 99,
19           101, 111, 121, 131, ... 191,
20           202, 212, 222, 232, ... 292,
21           ...
22           909, 919, 929, 939, ... 999,
23           1010, 1111, 1212, ... 1919,
24           ...
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26       Numbers with just 1 or 2 digits are A or AB and are considered of
27       undulating form.  This means all numbers up to 99 are undulating.
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29       The default is decimal or the optional "radix=>$r" can select another
30       radix.
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32       In binary the only two digits are 0 and 1 and the high digit must be 1,
33       so it ens up being just 101... and 111...
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35           0, 1, 10, 11, 101, 111, 1010, 1111, 10101, 11111, ...
36           (in binary)
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FUNCTIONS

39       See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
40       classes.
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42       "$seq = Math::NumSeq::UndulatingNumbers->new ()"
43       "$seq = Math::NumSeq::UndulatingNumbers->new (radix => $r)"
44           Create and return a new sequence object.  The default radix is 10.
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46       "$bool = $seq->pred($value)"
47           Return true if $value is an undulating number, ie. has digits of
48           the form ABABAB...
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50       "$i = $seq->value_to_i_floor($value)"
51       "$i = $seq->value_to_i_estimate($value)"
52           Return the i for the undulating number <= $value.
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SEE ALSO

55       Math::NumSeq
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HOME PAGE

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

61       Copyright 2010, 2011, 2012, 2013, 2014, 2016, 2019, 2020 Kevin Ryde
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63       Math-NumSeq is free software; you can redistribute it and/or modify it
64       under the terms of the GNU General Public License as published by the
65       Free Software Foundation; either version 3, or (at your option) any
66       later version.
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68       Math-NumSeq is distributed in the hope that it will be useful, but
69       WITHOUT ANY WARRANTY; without even the implied warranty of
70       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
71       General Public License for more details.
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73       You should have received a copy of the GNU General Public License along
74       with Math-NumSeq.  If not, see <http://www.gnu.org/licenses/>.
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78perl v5.36.0                      2022-07-22Math::NumSeq::UndulatingNumbers(3)
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