++ed by:
Kevin Ryde
and 1 contributors

# 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.

# HOME PAGE

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

# LICENSE

Copyright 2010, 2011, 2012 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/>.