diff --git a/algorithms/Searching/binary_search.m b/algorithms/Searching/binary_search.m
index d2e6514..440a979 100644
--- a/algorithms/Searching/binary_search.m
+++ b/algorithms/Searching/binary_search.m
@@ -14,7 +14,7 @@
 L_SearchRange = 1;                                %initial search range
 R_SearchRange = array_length;
 
-while counter <= floor(log(array_length))+1       %maximum iteration needed to find the target
+while counter <= floor(log2(array_length))+1       %maximum iteration needed to find the target
 mid = (L_SearchRange + R_SearchRange)/2;
 
 if t == A(floor(mid))
@@ -31,7 +31,7 @@
  counter = counter+1; 
 end
 end
-if counter > floor(log(array_length))+1
+if counter > floor(log2(array_length))+1
     disp('target is not found in aray')
 end
 end