From 06a26d6c05a023f68f034810c833b98e676c2ff5 Mon Sep 17 00:00:00 2001
From: dimon4ezzz <37621957+dimon4ezzz@users.noreply.github.com>
Date: Fri, 15 May 2020 17:42:01 +0000
Subject: [PATCH] update algorithm with Wikipedia
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(s9) should be (A_21 − A_11)
---
 Strassen.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Strassen.java b/Strassen.java
index e2802ab..c932cff 100644
--- a/Strassen.java
+++ b/Strassen.java
@@ -38,7 +38,7 @@ public  static int[][] multiply(int a[][],int b[][])
 			int s6[][]=add(b11,b22);
 			int s7[][]=sub(a12,a22);
 			int s8[][]=add(b21,b22);
-			int s9[][]=sub(a11,a21);
+			int s9[][]=sub(a21,a11);
 			int s10[][]=add(b11,b12);
 			
 			int p1[][]=multiply(a11,s1);
@@ -130,4 +130,4 @@ public static void main(String ar[])
 			 
          			 
 	  }
-}
\ No newline at end of file
+}