MathDB
Problems
Contests
Undergraduate contests
Arnold's Trivium
1991 Arnold's Trivium
55
55
Part of
1991 Arnold's Trivium
Problems
(1)
Problem 55
Source:
7/1/2010
Investigate topologically the Riemann surface of the function
w
=
arctan
z
w=\arctan z
w
=
arctan
z
function