#!/usr/bin/perl -w
# Copyright 2012 Kevin Ryde
# This file is part of Math-NumSeq.
#
# 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/>.
use 5.004;
use strict;
use Test;
plan tests => 2;
use lib 't','xt';
use MyTestHelpers;
MyTestHelpers::nowarnings();
use MyOEIS;
use Math::NumSeq::SqrtDigits;
# uncomment this to run the ### lines
#use Smart::Comments '###';
sub numeq_array {
my ($a1, $a2) = @_;
if (! ref $a1 || ! ref $a2) {
return 0;
}
my $i = 0;
while ($i < @$a1 && $i < @$a2) {
if ($a1->[$i] ne $a2->[$i]) {
return 0;
}
$i++;
}
return (@$a1 == @$a2);
}
#------------------------------------------------------------------------------
# A020807 - sqrt(1/50) in decimal
# sqrt(1/50) = sqrt(50)/50
# = 2*sqrt(50)/100
# = sqrt(200)/100
{
my $anum = 'A020807';
my ($bvalues, $lo, $filename) = MyOEIS::read_values($anum);
my @got;
if ($bvalues) {
MyTestHelpers::diag ("$anum has ",scalar(@$bvalues)," values");
my $seq = Math::NumSeq::SqrtDigits->new (sqrt => 200);
while (@got < @$bvalues) {
my ($i, $value) = $seq->next;
push @got, $value;
}
if (! numeq_array(\@got, $bvalues)) {
MyTestHelpers::diag ("bvalues: ",join(',',@{$bvalues}[0..10]));
MyTestHelpers::diag ("got: ",join(',',@got[0..10]));
}
} else {
MyTestHelpers::diag ("$anum not available");
}
skip (! $bvalues,
numeq_array(\@got, $bvalues),
1, "$anum -- sqrt(2)-1 1-bit positions");
}
#------------------------------------------------------------------------------
# A092855 - 1-bit positions in sqrt(2)-1 in binary
{
my $anum = 'A092855';
my ($bvalues, $lo, $filename) = MyOEIS::read_values($anum);
my @got;
if ($bvalues) {
MyTestHelpers::diag ("$anum has ",scalar(@$bvalues)," values");
my $seq = Math::NumSeq::SqrtDigits->new (radix => 2, sqrt => 2);
$seq->next; # skipping 1.xxx leading 1
while (@got < @$bvalues) {
my ($i, $value) = $seq->next;
if ($value) {
push @got, $i-1; # -1 to count from 1 as 0.x... digit
}
}
if (! numeq_array(\@got, $bvalues)) {
MyTestHelpers::diag ("bvalues: ",join(',',@{$bvalues}[0..10]));
MyTestHelpers::diag ("got: ",join(',',@got[0..10]));
}
} else {
MyTestHelpers::diag ("$anum not available");
}
skip (! $bvalues,
numeq_array(\@got, $bvalues),
1, "$anum -- sqrt(2)-1 1-bit positions");
}
#------------------------------------------------------------------------------
exit 0;