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-rw-r--r--challenge-021/andrezgz/perl5/ch-1.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/challenge-021/andrezgz/perl5/ch-1.pl b/challenge-021/andrezgz/perl5/ch-1.pl
index 22014b8f25..c7bb8de8d7 100644
--- a/challenge-021/andrezgz/perl5/ch-1.pl
+++ b/challenge-021/andrezgz/perl5/ch-1.pl
@@ -11,7 +11,7 @@ use warnings;
my $e_aprox = 0;
my $fact = 1;
-for (1, 1 .. 100) {
+for (1, 1 .. 100) { #tricky - additional 1 to represent 0!
$fact *= $_;
$e_aprox += 1/$fact;
}