The mathematical application of fixed points
1 Solve the equation using the fixed point of f (x) (Newton tangent method)
2 Use the fixed point of f (x) to find the analytic formula of a function or polynomial
3 Use the fixed point of f (x) to discuss the n-period point problem
4 Solve the sequence problem (solve the general term formula of the first-order recursive sequence)
5 Solve the limit of the first-order recursive sequence