Plotting random points on a circle

5 次查看（过去 30 天）
ReturnToCastle
ReturnToCastle 2020-5-5
评论： ReturnToCastle 2020-5-5
I am trying to plot 50 random points on a circle with a radius of 500 then store the x, y coordinates of the points in a matrix and calculate each point's distance from the centre of the circle (0,0), any reference I could use or how I can achieve this?

请先登录，再回答此问题。

采纳的回答

TADA
TADA 2020-5-5
Assuming you mean inside the circle and not on that circle, because then obviously the distance is 500 Anyway, it is much easier to work in polar coordinates for this task, then the distance is simply the radius we randomize
r = rand(1, 50) * 500;
theta = rand(1, 50) * 2 * pi;
[x,y] = pol2cart(theta, r);
plot(x,y,'o');
  1 个评论
ReturnToCastle
ReturnToCastle 2020-5-5
Yes, I meant inside the circle sorry, I hope your answer helps, thank you!

请先登录，再进行评论。

更多回答（1 个）

David Hill
David Hill 2020-5-5
a=2*pi*rand(1,50);
b=500*rand(1,50);
m=[b.*sin(a);b.*cos(a)];

类别

在 Help Center 和 File Exchange 中查找有关 2-D and 3-D Plots 的更多信息

标签

产品


版本

R2018b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by