wk21ch1p6

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diff --git a/challenge-021/ozzy/perl6/ch-1.p6 b/challenge-021/ozzy/perl6/ch-1.p6
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+#!/usr/bin/env perl6
+# A script to calculate the value of e, also known as Euler’s number
+
+my $p = 10 ** -100;         # Precision p
+
+my $n = 1;                  # Dummy     n
+my $l = 0;                  # Last sum  l
+my $s = 1.FatRat;           # Sum       s
+my $f = 1.FatRat;           # Factorial f
+
+
+while abs($l-$s) > $p {
+
+    $l=$s;
+
+    $f*=$n++;
+    $s+=(1/$f);
+}
+
+say "Eulers's number: $s";