3  ! n=number of equations (momentum)
0. ! eta0 = initial eta
10. ! etaend = eta at infinity
0.01  ! deta = eta-stepsize
1. ! f10 = f initial value
1. ! f20 = f-prime initial value
0.1 ! f30a = first f-2prime guessed initial value
1.2 ! f30b = second f-2prime guessed initial value
100 ! maxit - max number of iterations
1.e-6 ! tol = tolerance for secant method