(maxima.info)Introduction to solve_rec

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82.1 Introduction to solve_rec
==============================

'solve_rec' is a package for solving linear recurrences with polynomial
coefficients.

   A demo is available with 'demo("solve_rec");'.

   Example:

     (%i1) load("solve_rec")$
     (%i2) solve_rec((n+4)*s[n+2] + s[n+1] - (n+1)*s[n], s[n]);
                                         n
                      %k  (2 n + 3) (- 1)          %k
                        1                            2
     (%o2)       s  = -------------------- + ---------------
                  n     (n + 1) (n + 2)      (n + 1) (n + 2)