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-rw-r--r--docs/source/operations/projections/fouc_s.rst18
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diff --git a/docs/source/operations/projections/fouc_s.rst b/docs/source/operations/projections/fouc_s.rst
index ac353adb..add6af2b 100644
--- a/docs/source/operations/projections/fouc_s.rst
+++ b/docs/source/operations/projections/fouc_s.rst
@@ -23,3 +23,21 @@ For the inverse, the Newton-Raphson method can be used to determine
:math:`\phi` from the equation for :math:`y` above. As :math:`n \rightarrow 0` and
:math:`\phi \rightarrow \pi/2`, convergence is slow but for :math:`n = 0`, :math:`\phi =
\sin^1y`
+
+
+Parameters
+################################################################################
+
+.. note:: All parameters are optional for the Foucaut Sinusoidal projection.
+
+.. option:: +n=<value>
+
+ Weighting factor. Value should be in the interval 0-1.
+
+.. include:: ../options/lon_0.rst
+
+.. include:: ../options/R.rst
+
+.. include:: ../options/x_0.rst
+
+.. include:: ../options/y_0.rst