23.05.2011 / GERT SCHUBRING

23.05.2011 / GERT SCHUBRING

23.05.2011, 13:00, Gert Schubring @ HPZ F Research on the History of Teaching and Learning Mathematics. Universities of Bielefeld and Rio de Janeiro. Conviction by Means of Visualization, Not Logics: Graphical Representation of Complex Numbers as a Way to Accept Their Existence Within Mathematics. Complex numbers were used in mathematical practices since the sixteenth century; yet, their acceptance as legitimate mathematical concepts occurred only during the nineteenth century.... Read More