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-rw-r--r--docs/kernels.rst5
1 files changed, 4 insertions, 1 deletions
diff --git a/docs/kernels.rst b/docs/kernels.rst
index cd0020c..ce485c9 100644
--- a/docs/kernels.rst
+++ b/docs/kernels.rst
@@ -18,9 +18,12 @@ This section lists all kernel functions that are available to the
Smooths data within a local neighbourhood.
+.. c:function:: void diff ()
+
+ Computes :math:`f(x, y) = x - y`.
-.. _opencl-reduction-default-kernels:
+.. _opencl-reduction-default-kernels:
OpenCL reduction default kernels
================================