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How to fill a 1024 point array with two cycles of a cosine wave?

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Kennard Ng
Kennard Ng 2019-2-11
评论： Kennard Ng 2019-2-11
How to fill a 1024 point array with two cycles of a cosine wave?

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Luna
Luna 2019-2-11
You can use linspace.
Example:
xData = linspace(0,4*pi,1024);
yData = cos(xData);
figure;
plot(xData,yData);

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Guillaume
Guillaume 2019-2-11
Knowing that the cycle length of a cosine wave is , what is the length of two cycles?
Once you know that, use linspace to generate a vector of 1024 points between 0 and that length. Pass that vector to cos and you're done.

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