Update DIRECTORY.md (#64)

github-actions[bot] · web-flow · commit df070f01dd36 · 2026-06-22T12:25:38.000+03:00
Co-authored-by: github-actions[bot] &lt;github-actions[bot]@users.noreply.github.com&gt;
diff --git a/DIRECTORY.md b/DIRECTORY.md
@@ -9,6 +9,7 @@
 - [Gcd](math/gcd.jule)
 - [Lcm](math/lcm.jule)
 - [Max](math/max.jule)
+- [Mean](math/mean.jule)
 - [Median](math/median.jule)
 - [Min](math/min.jule)
 - [Prime](math/prime.jule)
