lambert_secant

lambert_secant
  Use the secant method to estimate solution to a Lambert equation.

  F(0) = 5
  F(2) = 4.81859

  After 8 iterations:
  F(1.32672) = 5.614

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

lambert_secant
  Use the secant method to search for a root of the lambert function.

  F(0) = -5
  F(2) = 9.77811

  After 8 iterations:
  F(1.32672) = -3.32852e-10

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