Multiple print outside of loop

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Christina Mil
Christina Mil el 15 de Dic. de 2019
Comentada: Christina Mil el 15 de Dic. de 2019
I get multiple print of 'The root of the equation is:' even though it is out of the loop
My code is:
clc;
clear all;
%syms x
f=@(x) 54.*(x.^6) + 45.*(x.^5) - 102.*(x.^4) - 69.*(x.^3) + 35.*(x.^2) + 16.*x - 4;
d=1/2*(10^(-5));
flag = false;
a=-2;
b=0;
i=0;
if f(a)*f(b)>=0
disp('Wrong beginning and end of interval')
else
while abs(a-b)>= d
c=a + (b-a).*rand(100,1);
i=i+1;
flag=true;
x1=c;
x2=a;
if x1.*x2<0
b=c;
else
a=c;
end
end
end
if flag
fprintf('The root of the equation is:%.5f\n',c);
fprintf('Iterations :%d',i);
end

Respuesta aceptada

Walter Roberson
Walter Roberson el 15 de Dic. de 2019
Your c is a vector because of the rand(100, 1)
None of the code is expecting a vector for c.
Note that if you are trying to generate values in the range 1 to 100 you should be using randi(100) for integer random numbers

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