Originally posted by: aux
Yes, it's more or less the same flawed technique 🙂
As I said above:
This has something to do with the funny way the logarithm function (as an inverse of the power function) is defined in a complex domain, but the argument would be too technical for ATOT
Yep. This shows up a LOT when you're doing state-space solutions to controls problems or elasticity solutions with complex variables. For those of whom haven't had a lot of formal math, think about this.... the logarithm function is normally defined only for x > 0. BUT there is a logarithm of negative numbers... as well as a logarithm of complex numbers. But, given things like e^(Pi*i) = -1, you must define the logarithm VERY carefully in the complex plane.