Plot with while loop

What is the problem with my codes? I could not see the plot.

m=0.5;
k=5;   
A=0.5; 
w0=sqrt(k/m);
t1=1;
while (t1<10)
    y1=A*sin(w0*t1);
    t1=t1+1;
end
plot(t1,y1)

Answer 1

[Alan Stevens]

By the time you get to the plot command you only have a single value of t1 and a single value of y1 as you overwrite each of them each time through the while loop. You would be better to use a for loop here, something like:

t1 = 1:10
for i = 1:10
    y1(i) = A*sin(w0*t1(i));
end

[Ömer Fatih Özdemir]

Thank you! it works. And i should make a plot of the velocity that is first derivative of displacement equation(y1)(A*sin(w0*t1(i))) again 10 times how can i do?

[Torsten]

t1 = 1:10
for i = 1:10
    y1(i) = A*sin(w0*t1(i));
    dy1dt(i) = A*w0*cos(w0*t1(i));
end

[Alan Stevens]

Just add

v(i) = A*w0*cos(w0*t1(i));

[Ömer Fatih Özdemir]

Thank you.