quadratic_secant2
{Undefined function or variable 'quadratic_secant2'.
} 
quadratic_secant2

quadratic_secant2
  Use the secant method to search for a root of the quadratic function.

  F(1) = -1
  F(2) = 2

r =

    5.6789

Estimated convergence rate = 5.67887

r =

    0.6585

Estimated convergence rate = 0.658541

r =

    2.3375

Estimated convergence rate = 2.33748

r =

    1.4935

Estimated convergence rate = 1.49349

r =

    1.6650

Estimated convergence rate = 1.66496

  After 6 iterations:
  F(1.41421) = 4.44089e-16

  it <= itmax?  true
  |a-b| <= xtol?  true
  |f(b)| <= ftol?  true
diary cubic_secant2.txt
quadratic_secant2

quadratic_secant2
  Use the secant method to search for a root of the quadratic function.

  F(1) = -1
  F(2) = 2
2: Estimated convergence rate = 5.67887
3: Estimated convergence rate = 0.658541
4: Estimated convergence rate = 2.33748
5: Estimated convergence rate = 1.49349
6: Estimated convergence rate = 1.66496

  After 6 iterations:
  F(1.41421) = 4.44089e-16

  it <= itmax?  true
  |a-b| <= xtol?  true
  |f(b)| <= ftol?  true
diary trig_secant2.txt