how to create a half cosine wave

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clowen
clowen 2016-2-18
回答： Moe_2015 2016-2-18
s=cos(t) for -pi/2 to pi/2 else 0

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Moe_2015
Moe_2015 2016-2-18
If you are talking about plotting a half cosine wave you could do something like this:
t=-pi/2:0.0001:pi/2;
plot(t,cos(t))

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