I don't get the desired output when running the following code. The output generated is shown in the image.

The task is to generate the roots of a quadratic equation and the value of the variables are entered by the user. I have used the following code:

%%findingRoots.m

border=['*************************************************'];

intro=['Quadratic Solver for ax^2+bx+c=0'];

disp(border);

disp(intro);

a=input('Please enter a: ');

b=input('Please enter b: ');

c=input('Please enter c: ');

z1=(-b+(b^2-(4*a*c))^0.5)/(2*a);

z2=(-b-(b^2-(4*a*c))^0.5)/(2*a);

root=['The roots are: '];

root1=['z1 = ', z1];

root2=['z2 = ', z2];

disp(root);

disp(root1);

disp(root2);

and I get the response as shown in the image.

Answer 1

[Zoltán Csáti]

I do not see the image (perhaps you did not attach it), but the error in your code is the following. You want to display a string so first you must convert z1 and z2 to strings, like this:

root1=['z1 = ', num2str(z1)];
root2=['z2 = ', num2str(z2)];

Then it will work.