CTRL-A Add [count] to the number or alphabetic character at or after the cursor. CTRL-X Subtract [count] from the number or alphabetic character at or after the cursor. What does it exactly mean "... or alphabetic character" in this help doc?
I have interpreted that it should increase/decrease the alphabetic character (ASCII value), even though it does not make sense though. Anyway, it does not do anything to alphabetic charactor. I appreciate any usage case with an example how to apply CTRL-A/CTRL-X to an alphabetic character. Maybe, I am just confused the way it is written.