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  Finding solution to the equation-system:
   0 = 1-x
   0 = 10(x-y**2)
 
  solution (x,y) =  1.00000000      1.00000000    
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  Minimizing g(x,y) = 10(x-1)**2 + 20(y-2)**2
 
  xmin =    2.0000004619359970        1.9999993741512299     
  f(xmin) =    7.6562500000000000     
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  Minimizing h(x) = 2x**2 + 17
 
  xmin =  0.50000000000000000     
  f(xmin) =    17.000000000000000     
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  Minimizing z(x) = cos(2*x)**2 + sin(y)**2 + (z+3)**2 + 17
 
  xmin = -0.69999998807907104       1.00000000000000000        10.500000000000000     
  f(xmin) =    27.034668775013426     
 This is not nessary the global minima, as the function has many minima.
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