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  1. K

    MATLAB MATLAB help-ode45

    Hello, I am trying to write a program on matlab using ode45 to solve the following equations: S'=-bSZ-sS Z'=bSZ+gR-aSZ R'=sS+aSZ-gR These are all derivatives with respect to t, differential equations. a, b, a and g are all constants. I realise I need to have two m files, one...
  2. K

    Equilibrium solutions in mathematical modelling

    Hi, I don't want to list the exact problem I have to solve, as I would rather do it myself, all I would like is some guidance. The problem is a function like: Pk+1=a (Pk-1) with a few more constants and some brackets thrown about on the right hand side. I need to find all the equilibrium...