1Math::NumSeq::Cubes(3)User Contributed Perl DocumentationMath::NumSeq::Cubes(3)
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6 Math::NumSeq::Cubes -- cubes i**3
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9 use Math::NumSeq::Cubes;
10 my $seq = Math::NumSeq::Cubes->new;
11 my ($i, $value) = $seq->next;
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14 The sequence of cubes i**3,
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16 0, 1, 8, 27, 64, 125, ...
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19 See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence
20 classes.
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22 "$seq = Math::NumSeq::Cubes->new ()"
23 Create and return a new sequence object.
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25 Iterating
26 "($i, $value) = $seq->next()"
27 Return the next index and value in the sequence.
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29 If $value overflows a usual Perl UV integer the return is promoted
30 to "Math::BigInt" to preserve all bits.
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32 "$seq->seek_to_i($i)"
33 Move the current sequence position to $i. The next call to
34 "next()" will return $i and corresponding value.
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36 "$seq->seek_to_value($value)"
37 Move the current sequence position so that "next()" will give
38 $value on the next call, or if $value is not a cube then the next
39 cube above $value.
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41 Random Access
42 "$value = $seq->ith($i)"
43 Return "$i*$i*$i".
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45 "$bool = $seq->pred($value)"
46 Return true if $value is a cube.
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48 "$i = $seq->value_to_i_ceil($value)"
49 "$i = $seq->value_to_i_floor($value)"
50 Return the cube root of $value, rounded up or down to the next
51 integer.
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53 "$i = $seq->value_to_i_estimate($value)"
54 Return an estimate of the i corresponding to $value.
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57 Math::NumSeq, Math::NumSeq::Squares
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60 <http://user42.tuxfamily.org/math-numseq/index.html>
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63 Copyright 2010, 2011, 2012, 2013, 2014, 2016 Kevin Ryde
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65 Math-NumSeq is free software; you can redistribute it and/or modify it
66 under the terms of the GNU General Public License as published by the
67 Free Software Foundation; either version 3, or (at your option) any
68 later version.
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70 Math-NumSeq is distributed in the hope that it will be useful, but
71 WITHOUT ANY WARRANTY; without even the implied warranty of
72 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
73 General Public License for more details.
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75 You should have received a copy of the GNU General Public License along
76 with Math-NumSeq. If not, see <http://www.gnu.org/licenses/>.
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80perl v5.30.1 2020-01-30 Math::NumSeq::Cubes(3)