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

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

Answer 1

[Luna]

You can use linspace.

Example:

xData = linspace(0,4*pi,1024);
yData = cos(xData);

figure; 
plot(xData,yData);

Answer 2

[Guillaume]

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.

[Kennard Ng]

Thank you