Idagbasoke imo Isiro wa nipa lilo afoyemoo (abstraction) ati Ogbon ironu, pelu onka, isesiro, wiwon ati nipa fi fi eto s'agbeyewo bi awon ohun se ri (shapes) ati bi won se n gbera (motion).. 
Ninu ìmọ̀ iṣiro nọmba gidi (Real Number) ni a mọ si awọn nọmba ti a ko le ge, gẹgẹ bi nọmba oníyẹ́mẹ́wàá (deci28) ti ko lopin.. 