babu kalmar "James Bernoulli" a cikin harshen Ingilishi. Duk da haka, akwai mashahuran malaman lissafi guda biyu daga dangin Bernoulli mai suna James (Jacobus) Bernoulli da Johann Bernoulli, ƴan'uwa ne. An san shi don aikinsa akan ma'auni daban-daban, jerin marasa iyaka, da lissafin bambancin. James Bernoulli shine farkon wanda ya fara gabatar da kalmar "haɗin kai" a cikin ƙididdiga kuma ana yaba shi da gano ainihin ka'idar lissafi ba tare da ɗan'uwansa Johann ba.Johann Bernoulli (1667-1748) shi ma masanin lissafin Swiss ne kuma ɗan'uwan James Bernoulli. Ya ba da gudummawa mai mahimmanci ga haɓaka ƙididdiga, gami da aiki akan lissafin bambance-bambancen, daidaitattun daidaito, da jerin marasa iyaka. Johann Bernoulli shine farkon wanda ya warware matsalar brachistochrone, wanda ya ƙunshi nemo hanyar saukowa cikin sauri tsakanin maki biyu.