Commit c4f59bcf authored by Eli Zaretskii's avatar Eli Zaretskii

Document the optional second arg of `atan'.

parent f120431c
......@@ -625,6 +625,13 @@ and the latter now controls scrolling down.
This is like window-height but does not count the mode line
or the header line.
** The function `atan' now accepts an optional second argument.
When called with 2 arguments, as in `(atan Y X)', `atan' returns the
angle in radians between the vector [X, Y] and the X axis. (This is
equivalent to the standard C library function `atan2'.)
** You can now make a window as short as one line.
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment