NAME
Math::NumSeq::ReverseAddSteps  steps of the reverseadd algorithm to reach palindrome
SYNOPSIS
use Math::NumSeq::ReverseAddSteps;
my $seq = Math::NumSeq::ReverseAddSteps>new;
my ($i, $value) = $seq>next;
DESCRIPTION
The number of steps to reach a palindrome by the digit "reverse and add" algorithm. For example the i=19 is 2 because 19+91=110 then 110+011=121 is a palindrome.
At least one reverseadd is applied, so an i which is itself a palindrome is not value 0, but wherever that minimum one step might end up. A repunit like 111...11 reverseadds to 222...22 so it's always 1 (except in binary).
The default is to reverse decimal digits, or the radix
parameter can select another base.
The number of steps can be infinite. In binary for example 3 = 11 binary never reaches a palindrome, and in decimal it's conjectured that 196 doesn't (and that is sometimes called the 196algorithm). In the current code a hard limit of 100 is imposed on the search  perhaps something better is possible. (Some binary infinites can be recognised from their bit pattern ...)
FUNCTIONS
See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence classes.
$seq = Math::NumSeq::ReverseAddSteps>new ()
$seq = Math::NumSeq::ReverseAddSteps>new (radix => $r)

Create and return a new sequence object.
Random Access
$value = $seq>ith($i)

Return the number of reverseadd steps required to reach a palindrome.
$bool = $seq>pred($value)

Return true if
$value
occurs in the sequence, which simply means$value >= 0
since any count of steps is possible, or$value==1
for infinite.
SEE ALSO
Math::NumSeq, Math::NumSeq::ReverseAdd, Math::NumSeq::CollatzSteps, Math::NumSeq::JugglerSteps
HOME PAGE
http://user42.tuxfamily.org/mathnumseq/index.html
LICENSE
Copyright 2011, 2012, 2013, 2014 Kevin Ryde
MathNumSeq 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.
MathNumSeq 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 MathNumSeq. If not, see <http://www.gnu.org/licenses/>.