07-Jan-2022 20:10:05

fsolve_test():
  MATLAB/Octave version 9.8.0.1380330 (R2020a) Update 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, fsolve() is directly available.
  In Python, fsolve() is scipy.optimize.
  In R, fsolve() is available in the pracma library.

fsolve_test01
  Use fsolve() to solve 1 nonlinear equation.

  Initial X and F(X)

       1:              0            -5

  Final X and F(X)

       1:        4.27523   -1.3356e-13

fsolve_test02
  Use fsolve() to solve 2 nonlinear equations.

  Initial X and F(X)

       1:              3           -13
       2:              0            11

  Final X and F(X)

       1:              1   8.14786e-08
       2:              1   1.22806e-07

fsolve_test03
  Use fsolve() to solve 4 nonlinear equations.

  Initial X and F(X)

       1:              0             1
       2:              0             4
       3:              0             9
       4:              0            16

  Final X and F(X)

       1:       0.998075   3.70635e-06
       2:        1.99632    1.3563e-05
       3:        2.99489   2.60634e-05
       4:        3.99398   3.62998e-05

fsolve_test04
  Use fsolve() to solve 8 nonlinear equations.

  Initial X and F(X)

       1:              0             1
       2:              0             1
       3:              0             1
       4:              0             1
       5:              0             1
       6:              0             1
       7:              0             1
       8:              0             1

  Final X and F(X)

       1:       -0.57047             0
       2:      -0.681141  -2.22045e-16
       3:      -0.700428  -2.66454e-15
       4:      -0.700672  -6.88338e-15
       5:      -0.691736  -1.82077e-14
       6:      -0.665767  -2.06501e-14
       7:      -0.596029  -6.21725e-15
       8:      -0.416411  -5.55112e-16

fsolve_test():
  Normal end of execution.

07-Jan-2022 20:10:06