Variant varieties of the letter have one of a kind code points for professional use: the alphanumeric symbols set in arithmetic and science, Latin alpha in linguistics, and halfwidth and fullwidth types for legacy CJK font compatibility. The Cyrillic and Greek homoglyphs on the Latin ⟨A⟩ have different encodingsÆ æ Ɑ ɑ Ʌ ʌ Ꞵ ꞵ Ð ð