Finding a Solution of N Functional Equations in N Unknowns (Algorithm 314 [C5]) CACM January, 1969 Vandergraft, J. Mesztenyi, C. functional equations, interpolation, nonlinear equations, secant method 5.13 5.15 CA690107 JB February 20, 1978 11:50 AM 1942 5 1942 1942 5 1942 1942 5 1942