Kevin Ryde > Math-NumSeq > Math::NumSeq::DigitLength

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Module Version: 71   Source  

NAME ^

Math::NumSeq::DigitLength -- length in digits

SYNOPSIS ^

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

DESCRIPTION ^

The length in digits of integers 0 upwards,

    1,1,1,1,1,1,1,1,1,1,2,2,2,2,2,...

The default is decimal digits, or the optional radix can give another base. For example ternary

    1,1,1,2,2,...,2,3,...

Zero is reckoned as a single digit 0 which is length 1.

FUNCTIONS ^

See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence classes.

$seq = Math::NumSeq::DigitLength->new (radix => $r)

Create and return a new sequence object.

Random Access

$value = $seq->ith($i)

Return length in digits of $i.

$bool = $seq->pred($value)

Return true if $value occurs as a digit length. This means simply $value >= 1 since lengths are 1 or more.

SEE ALSO ^

Math::NumSeq, Math::NumSeq::DigitLengthCumulative, Math::NumSeq::DigitCount, Math::NumSeq::AllDigits

HOME PAGE ^

http://user42.tuxfamily.org/math-numseq/index.html

LICENSE ^

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/>.

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