INTERVAL EQUATION METHOD

INTERVAL EQUATION METHOD

Mencari Nilai Maksimum dr Fungsi berikut :

f(x)=x^2/10-2*sin(x) 

Kode Matlab :

%interval Method

syms x

A = (x^2/10)-(2*sin(x));

a = 0;

b = pi/2;

e = 0.2;

n = 100;

N = []

for i = i:n

    s = ((a+b)/2+(e/2));

    t = ((a+b)/2-(e/2));

    fs = subs (A,x,s);

    ft = subs (A,x,t);

    if fs>=ft

        a=t;

    else

        b=s;

    end

N = [N; i a b fs ft]

if abs (b-a)<=0.02

    break

end

end

N

nilai_x = (a+b)/2

f_maximum = subs (A,x,nilai_x)

plot (N(:,1),N(:,5),'-ro','linewidth',3,...

'MarkerEdgeColor','y',...

'MarkerFaceColor','w',...

'MarkerSize',1.5)

title('Interval Equation Method','fontname','algerian')

xlabel('Fs','fontname','algerian')

ylabel('Ft','fontname','algerian')
grid