1 files changed, 17 insertions, 0 deletions
diff --git a/docs/examples/tutorial/cdef_classes/integrate.py b/docs/examples/tutorial/cdef_classes/integrate.py
new file mode 100644
index 000000000..cd02554e5
--- /dev/null
+++ b/docs/examples/tutorial/cdef_classes/integrate.py
@@ -0,0 +1,17 @@
+from cython.cimports.sin_of_square import Function, SinOfSquareFunction
+
+def integrate(f: Function, a: float, b: float, N: cython.int):
+    i: cython.int
+
+    if f is None:
+        raise ValueError("f cannot be None")
+
+    s: float = 0
+    dx: float = (b - a) / N
+
+    for i in range(N):
+        s += f.evaluate(a + i * dx)
+
+    return s * dx
+
+print(integrate(SinOfSquareFunction(), 0, 1, 10000))