<C-v>{code}

From Insert mode, entering symbols that are not found on the keyboard. {code} is the address of the character that we want to insert.

note: code consist of three digits! like: <C-v>065-->'A' or a four-digit hexadecimal code: <C-v>u00bf-->'¿'

ga

display the numeric code for any character in your document, just place the cursor on it

Tip16 Tip18