1) What version of perl are you using?

2) As far as I can tell, this isn't really done much in perl:

my $value = 0;
my $range = 0;
my $phiApprox = 0;
my $i = 0;
my $temp = 0;
my $fibValue1 = 0;
my $fibValue2 = 0;

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Declare your variables at (or near) first use, for example:

chomp(my $value = <>);


chomp(my $temp = <>);

my $range = $value + $temp;

my $total;

for (0 .. $range) {
  my $fibValue1 = fib($i);  
  my $fibValue2 = fib($i - 1);
  ...
  ...

  $total++;
}

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Redeclaring variables inside loops is done with alacrity in perl.

3) Note that you can do this in perl:

use strict;
use warnings;
use 5.010;


my $total;
$total++;

say $total;

--output:--
1

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...which would not work in those other languages you know. Yet, paradoxically you will get a warning if you do this:

use strict;
use warnings;
use 5.010;

my $total;

my $result = $total + 1;
say $result;

--output:--
Use of uninitialized value $total in addition (+) at 1perl.pl line 9.
1

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In reply to Re: how to speed up program dealing with large numbers? by 7stud
in thread how to speed up program dealing with large numbers? by Solarplight

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