In 1545 Cardan published Artis magnae sive de regulis algebraicis liber unus, or Ars magna as it is more commonly known, which contained solutions to both the cubic and quartic equations and all of the additional work he had completed on Tartaglia's formula.
Sa 1545 kardan-publish Artis magnae sive de regulis algebraicis liber unus, o ARS magna bilang na ito ay mas karaniwang kilala, na naglalaman ng mga solusyon sa parehong ang kubiko at quartic equation at ang lahat ng mga karagdagang trabaho niya natapos sa Tartaglia's formula.