摘要：In this work we spoke about the method of construction of models nonlinear by parameters with solution of system of nonlinear algebraic equations by combination of methods. We observed that method of shortest downhill is though universal, but rough for obtaining amplified values, we can use more subtle Newton-Rafson's method but we must take into account initial meanings of parameters rather close to real, which we can obtain by preliminary use of method of shortest downhill. Numerical example is given and methods for overcoming of difficulties is shown.
