Undefined Character (U+FFDE)

Block:	Halfwidth and Fullwidth Forms, U+FF00 - U+FFEF^[1]
Plane:	Basic Multilingual Plane, U+0000 - U+FFFF^[1]
HTML Entity:	`￞` `￞`
UTF-8 Encoding:	`0xEF 0xBF 0x9E`
UTF-16 Encoding:	`0xFFDE`
UTF-32 Encoding:	`0x0000FFDE`

References