calculate the variance account

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Garrik Akken 2019-4-19

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/457311-calculate-the-variance-account

评论： amin assadi 2020-9-15

i am new to matllab, below is the given code, i tried to run it but i think i am missing something

t= 0:0.001:3;

xref = sin(2*pi*t).*cos(2*pi*t);

xs1 = 0.5*sin(2*pi*t).*cos(2*pi*t);

xs2 = 1.0*sin(2*pi*t).*cos(2*pi*t);

xs3 = 1.0*sin(2*pi*t).*cos(2*pi*t)+0.1*sin(2*pi*10*t);

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David Wilson 2019-4-19

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Not really clear what the problem is. Do you want to regenerate the plot?

t= [0:0.001:3]'; % changed to column vector. 
 xref = sin(2*pi*t).*cos(2*pi*t);
 xs1 = 0.5*sin(2*pi*t).*cos(2*pi*t);
 xs2 = 1.0*sin(2*pi*t).*cos(2*pi*t); 
xs3 = 1.0*sin(2*pi*t).*cos(2*pi*t)+0.1*sin(2*pi*10*t);
subplot(3,1,1); 
plot(t,[xref, xs1])
subplot(3,1,2); 
plot(t,[xref, xs2])
subplot(3,1,3); 
plot(t,[xref, xs3])