1 files changed, 23 insertions, 0 deletions
diff --git a/test/c/integr.c b/test/c/integr.c
new file mode 100644
index 0000000..abcbd28
--- /dev/null
+++ b/test/c/integr.c
@@ -0,0 +1,23 @@
+static double square(double x)
+{
+  return x * x;
+}
+
+static double integr(double (*f)(double), double low, double high, int n)
+{
+  double h, x, s;
+  int i;
+
+  h = (high - low) / n;
+  s = 0;
+  for (i = n, x = low; i > 0; i--, x += h) s += f(x);
+  return s * h;
+}
+
+double test(int n)
+{
+  return integr(square, 0.0, 1.0, n);
+}
+
+    
+