How to write sin=(1/2*x)?

Someone know how should I write this function? When I show this code graph doesnt look right.

x= [0:0.01:2*pi];

y= sin(1/2*x);

figure(1);

plot(x,y,'g');

[Jan]

"It doesn't look right" does not allow to understand the problem. The posted code does exactly what the posted code does, and it is a valid implementation of the formula. What exactly is the problem?

Answer 1

[madhan ravi]

Actually your graph looks alright just increase your domain interval

syms x
y=sin((1/2)*x)
fplot(y,[0 6*pi]) % domain is from 0 to 6pi

This is the graph when I increased your domain (in your code)

Answer 2

[Michaela Novotna]

I attached file of my code. I dont think that first function is good.

[Jan]

What does "good" mean here? What is the relation of the code to the original question? What do you try to achieve?