How to work out the position vector?

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Sakusan Puwanendran
Sakusan Puwanendran 2017-10-31
回答： M 2017-10-31
The position vector a=[20sint;20cost;0] varies with time from t=0 to t=40 at 0.4 intervals. How do I calculate the values of a? I keep getting the message error using vertcat

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回答（1 个）

M
M 2017-10-31
If you define
t=0:0.4:40;
then you have
size(sin(t))
ans =
1 101
but 0 is a scalar of dimension 1*1
You should use
zeros(1,101);

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