Doble Titulacion

clear all

clc

syms x

f=input('Ingrese la funcion f(x) = ');

x0=input('Ingrese el valor de x0 = ');

x1=input('Ingrese el valor de x1 = ');

x2=input('Ingrese el valor de x2 = ');

N=input('Ingrese el numero de interacciones = ');

tol=input('Ingrese el error maximo perimitido = ');

h1=x1-x0;

h2=x2-x1;

d1=(subs(f,x,x1)-subs(f,x,x0))/h1;

d2=(subs(f,x,x2)-subs(f,x,x1))/h2;

a=(d2-d1)/(h2-h1);

i=2;

while i<= N,

b=d2+(h2*a);

D=sqrt((b^2)-(4*a*subs(f,x,x2)));

if abs(b-D)<abs(b+D),

E=b+D;

else

E=b-D;

end

q=((-2)*subs(f,x,x2))/E;

w=x2+q;

if abs(q)<tol,

fprintf('El valor de la raiz es = ');

fprintf(' %4.4f ',w);

i=N+2;

hold on

grid on

ezplot(f);

v=real(w);

plot(v,0,'*-r');

else

x0=x1;

x1=x2;

x2=w;

h1=x1-x0;

h2=x2-x1;

d1=(subs(f,x,x1)-subs(f,x,x0))/h1;

d2=(subs(f,x,x2)-subs(f,x,x1))/h2;

a=(d2-d1)/(h2-h1);

i=i+1;

end

end

if N<i && abs(q)>tol;

...