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How can I draw a arrow

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sina farahi
sina farahi 2014-4-9
评论： Robert Cumming 2014-4-10
How can I plot/draw a vector(with first point and it's length and direction) I want it with it's head(be arrow not only a line) an arrow by its location and size and direction

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Robert Cumming
Robert Cumming 2014-4-9
See annotation for drawing arrows.
  2 个评论
sina farahi
sina farahi 2014-4-9
annotation('arrow',x,y) doesn't works ;how does it works(what are x & y) thanks
Robert Cumming
Robert Cumming 2014-4-10
x and y are the normalised co-ordinates of the start and end position:
f = figure;
ax = axes('parent', f);
annotation ( 'arrow', [0 1], [0.25 0.5] )

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