His understanding of mathematics was rather limited, however, and the text he wrote on arithmetic was of poor quality and although his geometry text has not survived there is little reason to believe that is was any better.
Kanyang-unawa ng matematika sa halip ay limitado, gayunman, at ang text wrote siya sa arithmetic ay ang kalidad ng mga mahihirap at kahit sa kanyang geometry text ay hindi survived diyan ay kaunti dahilan na ang anumang ay ay mas mahusay.