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-rw-r--r--docs/source/usage/operations/projections/geos.rst2
-rw-r--r--docs/source/usage/operations/projections/index.rst2
2 files changed, 2 insertions, 2 deletions
diff --git a/docs/source/usage/operations/projections/geos.rst b/docs/source/usage/operations/projections/geos.rst
index 3b24e1f7..28b96736 100644
--- a/docs/source/usage/operations/projections/geos.rst
+++ b/docs/source/usage/operations/projections/geos.rst
@@ -66,7 +66,7 @@ This example represents the scanning geometry of the Meteosat series satellite.
However, the GOES satellite series use the opposite scanning geometry, with the
E/W axis (``x``) as the sweep-angle axis, and the N/S (``y``) as the fixed-angle axis.
-The sweep argument is used to tell PROJ.4 which on which axis the outer-gimbal
+The sweep argument is used to tell PROJ which on which axis the outer-gimbal
is rotating. The possible values are x or y, y being the default. Thus, the
scanning geometry of the Meteosat series satellite should take sweep as x, and
GOES should take sweep as y.
diff --git a/docs/source/usage/operations/projections/index.rst b/docs/source/usage/operations/projections/index.rst
index f7eb0c67..904dc9e6 100644
--- a/docs/source/usage/operations/projections/index.rst
+++ b/docs/source/usage/operations/projections/index.rst
@@ -5,7 +5,7 @@ Projections
================================================================================
Projections are coordinate operations that are technically conversions but since
-projections are so fundamental to PROJ.4 we differentiate them from conversions.
+projections are so fundamental to PROJ we differentiate them from conversions.
Projections map the spherical 3D space to a flat 2D space.