NAME
Math::NumSeq::Emirps  primes backwards and forwards
SYNOPSIS
use Math::NumSeq::Emirps;
my $seq = Math::NumSeq::Emirps>new;
my ($i, $value) = $seq>next;
DESCRIPTION
The "emirps", being numbers which are primes backwards and forwards. For example 157 is an emirp because both 157 and its reverse 751 are primes. Prime palindromes are excluded.
The default base is decimal, or the radix
parameter can select another base.
FUNCTIONS
See "FUNCTIONS" in Math::NumSeq for behaviour common to all sequence classes.
$seq = Math::NumSeq::Emirps>new ()
$seq = Math::NumSeq::Emirps>new (radix => 16)

Create and return a new sequence object.
$bool = $seq>pred($value)

Return true if
$value
is an emirp, meaning it and its digit reversal (in theradix
) are both primes.
SEE ALSO
Math::NumSeq, Math::NumSeq::Primes
HOME PAGE
http://user42.tuxfamily.org/mathnumseq/index.html
LICENSE
Copyright 2010, 2011, 2012 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/>.