1 First example f(u)=(11u1u2)2+(1+u1+10u2u1u2)2

1.1 compare steepest descent optimal step with conjugate gradient
1.2 compare steepest descent optimal step with conjugate gradient, larger range
1.3 compare steepest descent optimal step with fixed step h=0.25
1.4 compare steepest descent optimal step with fixed step h=0.1