perimeter , area of circle

I am doing a code to calculate the circumference and area of a circle, but when I get the results, the answer is the circumference and area are reversed, I don't know where I am wrong?

r = input('r= ');

P = pi * 2 * r;

S = pi * (r^2);

fprintf('P = %.2f\n',S);

fprintf('S = %.2f\n',P);

Answer 1

[Davide Masiello]

You just need to change the arguments in fprintf, since you must have accidentally swapped them.

r = 1;
P = pi * 2 * r;
S = pi * (r^2);
fprintf('P = %.2f\n',P);

P = 6.28

fprintf('S = %.2f\n',S);

S = 3.14

[Minh]

@Davide Masiello thank you very much