Rosenbrock: broyden:
start point:         2         -2 
nsteps=424 ncalls=4104
root=         1          1 
f(root)= -1.95e-08   1.06e-08 
eps            = 1E-07
f(root).norm() = 2.22064254769016E-08
test passed

Rosenbrock: newton:
start point:         2         -2 
nsteps=255 ncalls=2371
root=         1          1 
f(root)=  5.07e-08  -2.47e-08 
eps            = 1E-07
f(root).norm() = 5.63825654509586E-08
test passed