Add the central_difference function and a test for it.

[octave.git] / tests / central_difference_tests.m

diff --git a/tests/central_difference_tests.m b/tests/central_difference_tests.m
new file mode 100644 (file)
index 0000000..017a7ad
--- /dev/null
+++ b/tests/central_difference_tests.m
@@ -0,0 +1,7 @@
+xs = [0, 0.5, 1];
+expected = [-0.5, 0, 0.5];
+actual = central_difference(xs, 0.5);
+
+unit_test_equals("Three point central difference works", ...
+                expected, ...
+                actual);