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-rw-r--r--info/blueshift.texinfo13
1 files changed, 13 insertions, 0 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo
index e3a5ae5..dc6fd16 100644
--- a/info/blueshift.texinfo
+++ b/info/blueshift.texinfo
@@ -1570,6 +1570,19 @@ parameter: @code{tension}, those default value
is 0. It is a floating point value that should
be between 0 and 1.
+@item monotonicly_cubicly_interpolate_ramp
+Scale up using monotone cubic Hermite
+interpolation, and the Fritsch–Carlson method.
+
+Does not overshoot, but regular cubic
+interpolation with uses linear replacement
+for overshot areas is better.
+
+This function have one additional, optional,
+parameter: @code{tension}, those default value
+is 0. It is a floating point value that should
+be between 0 and 1.
+
@end table
All functions are will using linear