compute the unit vector given the angle
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Hi guys,
How to compute the unit vector given the direction? Is there any function in matlab to do this task.
Thanks
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回答 (3 件)
Walter Roberson
2012 年 5 月 4 日
編集済み: Walter Roberson
2018 年 12 月 10 日
For angle theta in radians,
%[x, y] = pol2cart(1, theta); %-> incorrect
[x, y] = pol2cart(theta, 1); %repaired
3 件のコメント
Kye Taylor
2012 年 5 月 4 日
It's unusual that the inputs to the function don't match the "r-theta" convention that is used so often to identify the coordinate space.
Roger Stafford
2016 年 1 月 9 日
If vector 'v' points in the desired direction, then do this to make it a unit vector:
v = v/norm(v);
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Kye Taylor
2012 年 5 月 4 日
Given the angle
theta
in radians (counter-clockwise is positive theta, theta = 0 points in the positive x-direction) your unit vector is
u = [cos(theta),sin(theta)]
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