# Question:Newton iteration not converging

## Question:Newton iteration not converging

Maple 2022

Good day all,

please I am new Maple user, i used the same code to solve boundary layer flow. Itried to use the same code in solving nanofluid but the solution is not coverging at some point. But the author i want to compared my results with had solution at those points.

Is there any way i can get solution of this model at this with these values?. Please i need your help. Thank you in advance

secod_code.mw

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 > for k to 10 do       sol_All := dsolve                  ( eval                    ( {bcs1, ode1, ode2,ode3},                      [xi= L[k],R=1, CT=0.2, Gr=0.5, Gc=0.5, lambda1=0.2, lambda2=0.2, Pr=0.72, Nb=0.5,  Le=1, dc=0.2, de=0.2, Nt=0.5, Zeta=0.5, varsigma=0.5, M=1.5, bet=1.5]                    ),                    [f(eta), theta(eta),phi(eta)],                    numeric,                    output = listprocedure                  );       Y_sol || k := rhs(sol_All[5]);       YP_sol || k := -rhs(sol_All[6]); feta || k := rhs(sol_All[4]);       fpeta || k := rhs(sol_All[3]); phieta || k := rhs(sol_All[8]);       phipeta || k := rhs(sol_All[7])   end do:
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 > plot( [ seq((Y_sol||j)(eta), j = 1..6)],          eta = 0 .. 6,          labels = [eta, theta(eta)],          axes = boxed       ); plot( [ seq((YP_sol||j)(eta), j = 1..6)],          eta = 0 .. 8,          labels = [eta, thetaprime(eta)],          axes = boxed       );  plot( [ seq((feta||j)(eta), j = 1..6)],          eta = 0 .. 8,          labels = [eta, f(eta)],          axes = boxed       );   plot( [ seq((fpeta||j)(eta), j = 1..6)],          eta = 0 .. 5,          labels = [eta, fprime(eta)],          axes = boxed       ); plot( [ seq((phipeta||j)(eta), j = 1..6)],          eta = 0 .. 5,          labels = [eta, phiprime(eta)],          axes = boxed       ); plot( [ seq((phieta||j)(eta), j = 1..6)],          eta = 0 .. 5,          labels = [eta, phi(eta)],          axes = boxed       );
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