Math::NumSeq::Cubes -- cubes i**3
use Math::NumSeq::Cubes; my $seq = Math::NumSeq::Cubes->new; my ($i, $value) = $seq->next;
The sequence of cubes i**3,
0, 1, 8, 27, 64, 125, ...
See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence classes.
$seq = Math::NumSeq::Cubes->new ()
Create and return a new sequence object.
($i, $value) = $seq->next()
Return the next index and value in the sequence.
$value overflows a usual Perl UV integer the return is promoted to
Math::BigInt to preserve all bits.
Move the current sequence position to
$i. The next call to
next() will return
$i and corresponding value.
Move the current sequence position so that
next() will give
$value on the next call, or if
$value is not a cube then the next cube above
$value = $seq->ith($i)
$bool = $seq->pred($value)
Return true if
$value is a cube.
$i = $seq->value_to_i_ceil($value)
$i = $seq->value_to_i_floor($value)
Return the cube root of
$value, rounded up or down to the next integer.
$i = $seq->value_to_i_estimate($value)
Return an estimate of the i corresponding to
Copyright 2010, 2011, 2012, 2013, 2014 Kevin Ryde
Math-NumSeq is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version.
Math-NumSeq is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with Math-NumSeq. If not, see <http://www.gnu.org/licenses/>.