here are the Xi symbol in physics | how to write or insert Xi symbol in text copy paste ?
answer : Xi symbol in lower case = ξ
Xi symbol in uppercase = Ξ
so we have seen above that the symbol of “Xi” in our 12th 11th physics written as text “Ξ” or “ξ” .
You can just copy and paste the symbol of Xi here as “ξ” in lower case and “Ξ” in upper case in Microsoft word or in other file “ξ” and also “Ξ”