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#!/usr/bin/perl -w
# Copyright 2010, 2011, 2012, 2013 Kevin Ryde
# This file is part of Math-PlanePath.
#
# Math-PlanePath 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-PlanePath 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-PlanePath. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 3;
use lib 't','xt';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings(); }
use MyOEIS;
use Math::PlanePath::DivisibleColumns;
# uncomment this to run the ### lines
#use Smart::Comments '###';
#------------------------------------------------------------------------------
# A077597 - N on X=Y diagonal, being cumulative count divisors - 1
MyOEIS::compare_values
(anum => 'A077597',
func => sub {
my ($count) = @_;
my @got;
my $path = Math::PlanePath::DivisibleColumns->new;
for (my $x = 1; @got < $count; $x++) {
push @got, $path->xy_to_n($x,$x);
}
return \@got;
});
#------------------------------------------------------------------------------
# A027751 - Y coord, proper divisors, extra initial 1
MyOEIS::compare_values
(anum => 'A027751',
func => sub {
my ($count) = @_;
my @got = (1);
my $path = Math::PlanePath::DivisibleColumns->new
(divisor_type => 'proper');
for (my $n = $path->n_start; @got < $count; $n++) {
my ($x,$y) = $path->n_to_xy($n);
push @got, $y;
}
return \@got;
});
#------------------------------------------------------------------------------
# A006218 - cumulative count of divisors
{
my $anum = 'A006218';
my ($bvalues, $lo, $filename) = MyOEIS::read_values($anum);
my $good = 1;
my $count = 0;
if ($bvalues) {
my $path = Math::PlanePath::DivisibleColumns->new;
for (my $i = 0; $i < @$bvalues; $i++) {
my $x = $i+1;
my $want = $bvalues->[$i];
my $got = $path->xy_to_n($x,1);
if ($got != $want) {
MyTestHelpers::diag ("wrong totient sum xy_to_n($x,1)=$got want=$want at i=$i of $filename");
$good = 0;
}
$count++;
}
}
ok ($good, 1, "$anum count $count");
}
#------------------------------------------------------------------------------
exit 0;
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