- Traditional Chinese Character(HanT):
未定數
- Simplified Chinese Character(HanS):
未定数
- Bopomofo(Mandarin Phonetic Symbols): ㄨㄟˋ ㄉㄧㄥˋ ㄕㄨˋ (ㄨㄉㄕ)
- Bopomofo(Zhuyin Keyboard Input/IME): jo42u/4gj4
- 「未定數」的注音符號/「未定數」怎麼發音怎麼唸: ㄨㄟˋ ㄉㄧㄥˋ ㄕㄨˋ
- (ASCII) Hanyu Pinyin: "weidingshu" "Wei4Ding4Shu4" "Wei4 Ding4 Shu4" (WDS)
- (Latin) Hànyǔ Pīnyīn: WèiDìngShù [ Wèi Dìng Shù ]
- (英文翻譯) English Translation: "Undetermined number"
- (西語翻譯) Traducción Español: "numero indeterminado"
- (日文翻譯) 日本語翻訳: "未定番号"