Ka haere kē atu a Al-Khwarizmi ki te tuku rongoā katoa ki te whārite whāwhā nui, e whakaae ana ki tētahi, e rua rānei ngā whakautu ā-tau mō ia whārite tapawhā, i a ia e tuku ana i ngā whakatika whakarea i roto i te tukanga.