diff --git a/README.md b/README.md
index 828cb57..a96150f 100644
--- a/README.md
+++ b/README.md
@@ -8,3 +8,6 @@
 - Circle: P = 2πR
 - Rectangle: P = 2a + 2b
 - Square: P = 4a
+
+## Neural formula
+- N = ((P²+S²)²)²