Scipione del ferro biography of barack
Cardan writes with great respect for the achievements of del Ferro (see for example [1]): Scipione Ferro of Bologna, almost thirty years ago, discovered the solution of the cube and things equal to a number [which in today's notation is the case x 3 + m x = n x^{3} + mx = n x 3 + m x = n], a really beautiful and admirable accomplishment.