mycubic: Compute roots of the cubic equation
Description
Compute roots of the cubic equation
Usage
mycubic(parameters, mydelta, Rmax)
Arguments
parameters
A vector of parameters (real numbers) that is generated by estimating the short, intermediate and auxiliary regressions.
mydelta
Value of delta (real number).
Rmax
Value of Rmax (real number).
Value
A vector containing the three roots of the cubic equation defined by the parameters, delta and Rmax.