Data commit

Task/Eulers-constant-0.5772.../Raku/eulers-constant-0.5772....raku

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+# 20211124 Raku programming solution
+
+sub gamma (\N where N > 1) { # Vacca series https://w.wiki/4ybp
+                             # convert terms to FatRat for arbitrary precision
+   return  (1/2 - 1/3) + [+] (2..N).race.map: -> \n {
+
+      my ($power, $sign, $term) = 2**n, -1;
+
+      for ($power..^2*$power) { $term += ($sign = -$sign) / $_ }
+
+      n*$term
+   }
+}
+
+say gamma 23 ;