In mathematica v 13.1 ,
If I type + key of my keyboard in a new cell, I see
What is it? Also if I type + twice in a new cell, its variant is seen.
They may be features related to style, but I am not sure.
And how do I disable it ?
There is a workaround, type any letter and then type +, then delete the first letter.
But I just want to disable this feature directly.
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
1 2 3 4 5 6 7 8 9 0 dash/minus plus/equal backspace
shift + plus/equal works fine, meaning normal + sign appears even if it is the starting of a new cell.
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
There is another + key as you know.
7 8 9
4 5 6 +
1 2 3
If I click this +, then Free Form Input is generated(without shift key pressed).

Free form input– Bob Hanlon Apr 07 '23 at 03:36+) – imida k Apr 07 '23 at 03:42=? Is your Shift key broken? – xzczd Apr 07 '23 at 03:45+in the NumLock area generatesFree Form Inputif it is typed in a new cell. – imida k Apr 07 '23 at 03:57=key. – imida k Apr 07 '23 at 03:59