0: #!/usr/bin/perl
1: # This is a quick program to calculate pi using the Monte Carlo method.
2: # I recomend inputting a value for $cycles greater that 1000.
3: # I am working on a detailed explanation of how and why this works.
4: # I will add it as soon as I'm done.
5: use strict;
6: my ($cycles, $i, $yespi, $pi) = 0;
7: srand;
8: #print "Please enter number of cycles\n";
9: print "Please enter the amount of cycles:";
10: chomp($cycles = <STDIN>);
11: while ($i < $cycles) {
12: my ($x, $y, $cdnt) = 0;
13: $x = rand;
14: $y = rand;
15: $cdnt = $x**2 + $y**2;
16: if ($cdnt <= 1) {
17: ++$yespi;
18: }
19: ++$i;
20: }
21: $pi = ($yespi / $cycles) * 4;
22: print "Pi is $pi\n";
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