of complex numbers perhaps because they gave him useful results, while Cardan found the square roots of negative numbers useless. Bombelli is the first...

dynasty artisan Ding Huan (fl. 180) not only pioneered the invention of the cardan suspension, but also the rotary fan, which could be used as a simple air...

Coley, together with the choicest aphorisms of the seven segments of Jerom Cardan of Milan. London: G. Redway. Edward Heron-Allen (1887). "Coley, Henry"....