[Date Index] [Thread Index] [Author Index]
RSolve and complex solutions
It may be a basic math question, but it would be helpful if somebody could briefly comment on it. If I have a system of recursion equations with real coefficients and solve it numerically step-by-step, all my solutions at all time steps are (obviously) real. If, however, I use RSolve to get the general formulas for these solutions, some of them become complex numbers. My understanding is the imaginary parts of these numbers are due to rounding errors and the actual solutions are only the real parts. Am I right?