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| -rw-r--r-- | info/blueshift.texinfo | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/info/blueshift.texinfo b/info/blueshift.texinfo index ac2ab8c..c255a77 100644 --- a/info/blueshift.texinfo +++ b/info/blueshift.texinfo @@ -1584,6 +1584,9 @@ adjustments from a lookup table, and a function that interpolates a lookup table trio. It returns a function that applies the interpolated lookup table. +If the second argument is @code{None}, +then the first argument will be returned: +no interpolation is done. |