Without further ado, the following was found: Issue: [-pi,pi] means both -pi and pi are included, this does not make sense, either one must be out of the interval? "The logarithm B<clog>() is the inverse function of the exponential " "B<cexp>(3). Thus, if I<y\\ =\\ clog(z)>, then I<z\\ =\\ cexp(y)>. The " "imaginary part of I<y> is chosen in the interval [-pi,pi]."