1Math::NumSeq::UndulatinUgsNeurmbCeornst(r3i)buted Perl DMoactuhm:e:nNtuamtSieoqn::UndulatingNumbers(3)
2
3
4

NAME

6       Math::NumSeq::UndulatingNumbers -- numbers with alternating digits
7       ABABAB...
8

SYNOPSIS

10        use Math::NumSeq::UndulatingNumbers;
11        my $seq = Math::NumSeq::UndulatingNumbers->new (radix => 10);
12        my ($i, $value) = $seq->next;
13

DESCRIPTION

15       This is the sequence of numbers with digits ABABAB... alternating
16       between two values,
17
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           ...
25
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.
28
29       The default is decimal or the optional "radix=>$r" can select another
30       radix.
31
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...
34
35           0, 1, 10, 11, 101, 111, 1010, 1111, 10101, 11111, ...
36           (in binary)
37

FUNCTIONS

39       See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
40       classes.
41
42       "$seq = Math::NumSeq::UndulatingNumbers->new ()"
43       "$seq = Math::NumSeq::UndulatingNumbers->new (radix => $r)"
44           Create and return a new sequence object.  The default radix is 10.
45
46       "$bool = $seq->pred($value)"
47           Return true if $value is an undulating number, ie. has digits of
48           the form ABABAB...
49
50       "$i = $seq->value_to_i_floor($value)"
51       "$i = $seq->value_to_i_estimate($value)"
52           Return the i for the undulating number <= $value.
53

SEE ALSO

55       Math::NumSeq
56

HOME PAGE

58       <http://user42.tuxfamily.org/math-numseq/index.html>
59

LICENSE

61       Copyright 2010, 2011, 2012, 2013, 2014, 2016, 2019 Kevin Ryde
62
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.
67
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.
72
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/>.
75
76
77
78perl v5.32.0                      2020-07-28Math::NumSeq::UndulatingNumbers(3)
Impressum