Update compositemidpoint.m

kwyip · Jul 3, 2017 · 8d34e0b · 8d34e0b
1 parent 6cc68d1
commit 8d34e0b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/compositemidpoint.m b/compositemidpoint.m
@@ -6,5 +6,5 @@
 m = a + 0.5*h;
 for i = 1:n
     midpoint = midpoint + h*f(m);
-    m = m + h;
+    m = a + 0.5*h + i*h; %to avoid accumulation of roundoff error
 end