In the same year, Cardan's first two mathematical books were published, the second The Practice of Arithmetic and Simple Mensuration was a sign of greater things to come.
Sa parehong taon, kardan ng unang dalawang matematika ng mga libro ay nai-publish, ang pangalawang Ang Practice ng Arithmetic at Simple pagsukat ay isang mag-sign ng mas malaking mga bagay-bagay na dumating.