kepler_secant2

kepler_secant2
  Use the secant method to search for a root of Kepler's function.

  F(0) = 5
  F(10) = -6.08804
2: Estimated convergence rate = 1.91188
3: Estimated convergence rate = 0.350206
4: Estimated convergence rate = 5.57985
5: Estimated convergence rate = 0.867663
6: Estimated convergence rate = 1.71732
7: Estimated convergence rate = 1.65185
8: Estimated convergence rate = 1.60089

  After 8 iterations:
  F(3.79083) = 1.11022e-15

  it <= itmax?  true
  |a-b| <= xtol?  true
  |f(b)| <= ftol?  true
diary lambert_secant2.txt