clc

clear all

close all

%%

angles = linspace(0, 2*pi, 720); % 720 is the total number of points

radius = 20;

xCenter = 50;

yCenter = 40;

for r=1:radius

x{r}= r*cos(angles)+xCenter;

y{r}=r*sin(angles)+yCenter;

end

figure

plot(cell2mat(x), cell2mat(y));

N=4

a=0;

step = 300*N;

u = a + (0:step).*(N*(2*pi)/step);

r=u./2;

x=r.* cos(u);

y=r.* sin(u);

figure

plot(x,y)

In the first case, you get circles to reduce the radius in the second spiral. All points are stored in the corresponding variables.

Have a look at https://www.mathworks.com/matlabcentral/answers/302961-moving-a-dot-at-a-constant-velocity-in-a-circular-path-in-matlab

ehttps://www.mn.uio.no/astro/english/services/it/help/mathematics/matlab/graphg.pdf

Hello DR Zeena; The above was the most comprehensive link I could ferret out

concerning your question. Please delete the 'e' at the beginning of the link I hope the input helps you in your research work. Best regards