Siffar Algebra (polynomial mai kama da juna), wanda ke ba da cikakken nau'ikan nau'ikan quadratic zuwa digiri 3 da ƙari, wanda kuma aka sani da ƙididdiga ko a sauƙaƙe
Siffar Bilinear, akan sararin vector V akan filin F shine taswirar V × V → F wanda ke layi a cikin mahawara biyu.
Siffofin daban-daban, ra'ayi daga nau'in topology daban-daban wanda ya haɗu da nau'i-nau'i masu yawa da ayyuka masu santsi
Hanyar aminci ta farko, hanyar bincike mai yuwuwa mai yuwuwa wanda aka ƙirƙira don kimanta amincin tsarin
Siffa marar iyaka, furcin algebra da ba za a iya amfani da shi don kimanta iyaka ba
Modular form, wani (rikitaccen) aikin nazari akan babban rabin jirgin sama mai gamsar da wani nau'in ma'auni na aiki da yanayin girma
Siffar Multilinear, wanda ke ba da cikakkun siffofin bilinear zuwa taswira VN → F
Form jayayya, a.k.a. Siga mai ma'ana ko sigar gwaji - maye gurbin kalmomi, ko jimloli daban-daban, waɗanda ke yin gardama da haruffa, tare da layin algebra; haruffan suna wakiltar masu canji na ma'ana
Siffa mai hankali, sifa mai mahimmanci kamar yadda hankali ya kama shi
Siga mai mahimmanci, yana tabbatar da cewa ra'ayoyin suna tsara al'amura kuma su sa shi fahimta
Ka'idar siffofin, yana tabbatar da cewa ra'ayoyin suna da mafi girman gaske kuma mafi mahimmanci irin na gaskiya
Siffar darajar, hanya don fahimtar tushen kasuwancin kayayyaki da samuwar kasuwanni.[3]