Arrow of a vector ( r, theta) from a point (x,y).

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Bipul Biswas
Bipul Biswas 2021-9-9
评论： Star Strider 2021-9-9
Hello,
I need to show a arrow of a vector (r, theta) form a point (x,y). Is there any function to do that?
Thanks for help.

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采纳的回答

Star Strider
Star Strider 2021-9-9
Ran in:
One approach (using the quiver function) —
x = rand
x = 0.3732
y = rand
y = 0.5120
r = rand
r = 0.9137
theta = 30; % Angle In Degrees
figure
quiver(x, y, r*cos(deg2rad(theta)), r*sin(deg2rad(theta)))
axis([0 2 0 2])
grid
Experiment to get different results.
.

更多回答（1 个）

the cyclist
the cyclist 2021-9-9
You can make an arrow on a plot using the annotation function, or you may want to use a quiver plot if you want the arrow to come from the data itself.

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