Duba Kuma Lissafin lissafi shine tsarin wakilcin alamomin abubuwan lissafi da ra'ayoyi. Ana amfani da alamar ilimin lissafi a cikin lissafi, kimiyyar jiki, injiniya, da tattalin arziki . Bayanan ilimin lissafi sun haɗa da wakilci mai sauƙi mai sauƙi, kamar lambobi 0, 1 da 2.masu canji kamar x, y da z .masu ƙuntatawa kamar "("da ;"|")alamomin aiki sin ; alamomin aiki kamar " + "; alamomin alaƙa kamar "<"; alamomin ra'ayi kamar lim da <i id="mwFw">dy/dx</i> ; lissafi da hadaddun alamomin zane kamar Bayanin hoto na Penrose da zane -zanen Coxeter -Dynkin . Lissafin lissafi shine tsarin rubutu da ake amfani da shi don yin rikodin tunani a cikin lissafi. Sanarwar tana amfani da alamomi ko maganganun alama waɗanda aka yi niyya don samun madaidaicin ma’anar kalma. A cikin tarihin lissafi, waɗannan alamomin sun nuna lambobi, sifofi, alamu da canji. Sanarwar na iya haɗawa da alamomi don ɓangarorin maganganun al'ada tsakanin masu ilimin lissafi, lokacin kallon lissafi azaman yare.