Nonlinear Discrete

*To*: mathgroup at yoda.physics.unc.edu*Subject*: Nonlinear Discrete*From*: E Mendes <E.M.Mendes at sheffield.ac.uk>*Date*: Wed, 23 Feb 94 11:58:23 GMT

Dear Users I am currently engaged in writing a function to deal with some discrete nonlinear system, but unfortunately I am a completely novice as Mathematica programmer. Can someone out there give some clue how to implement a problem such as the following one, please? y(t)=a*y(t-1)+b*y(t-2)+c*y(t-1)*y(t-1) -> First how to code? y(t)=A*y1(t) + B*y2(t) + C*y3(t) + .... -> I want to compare the two expressions and solve for y1(t), y2(t) etc. Any help will be appreciated. Eduardo