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

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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.

Accepted Answer

Star Strider
Star Strider on 9 Sep 2021
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.
.

More Answers (1)

the cyclist
the cyclist on 9 Sep 2021
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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