10-Oct-2020 19:19:20

fsolve_test
  MATLAB/Octave version 4.2.2
  fsolve() seeks a solution x of one or more nonlinear
  equations f(x)=0.
  In MATLAB, fsolve() is in the Optimization toolbox.
  In Octave, a version of fsolve() is directly available.

fsolve_test01
  Use fsolve() to solve a scalar nonlinear equation.

  Initial:  F(1.5708) = 0.214602
  Final:    F(1.89549) = -4.63403e-08
  Expected: F(1.89549) = 0

  Initial:  F(0) = -1
  Final:    F(0.351734) = -2.72082e-09
  Expected: F(0.351734) = 0

  Initial:  F(-1) = -2.71828
  Final:    F(-4.03966e-113) = -4.03966e-113
  Expected: F(0) = 0

  Initial:  F(0.03) = -10.0807
  Final:    F(0.0953446) = -1.99935e-07
  Expected: F(0.0953446) = -2.22045e-16

  Initial:  F(0) = -0.0872665
  Final:    F(22.6566) = 3.60738e-08
  Expected: F(22.675) = 8.41075e-05

fsolve_test02
  Use fsolve() to solve systems of nonlinear equations.

   #    ------------------------------------------Title    N     ||F(start)||   ||F(root)||

   1                     Generalized Rosenbrock function  10       4.91935       1.98093
   2                            Powell singular function   4       14.6629     7.308e-14
   3                        Powell badly scaled function   2       1.06549    0.00236243
   4                                       Wood function   4       8550.56   4.72484e-07
   5                             Helical valley function   3            50   8.46601e-08

fsolve_test
  Normal end of execution.

10-Oct-2020 19:19:20