calculus C2+

/ˈkælkjələs/ the mathematics of continuous change; a hard stone formed in the body

incalculable C2+

/ɪnˈkælkjələbəl/ too great or uncertain to be reckoned or measured

miscalculation C2+

/ˌmɪsˌkælkjəˈleɪʃən/ an error in reckoning, judgment, or estimation