Composite Trapezoid Rule: Difference between revisions

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 function integral = trapezoidal(f, a, b, n)
-    h = (b-a)/n;
+    x = (b-a)/n;
     result = 0.5*f(a) + 0.5*f(b);
     for i = 1:(n-1)
-        result = result + f(a + i*h);
+        result = result + f(a + i*x);
     end
-    integral = h*result;
+    integral = x*result;
 end