how can we decreases the length of the quiver? so that the tail get smaller but head shouldn't move.

X1 = [0.00246236309072327	0.00222132983511081	0.00176285733832268	0.00113182408271022	0.000390000000000000	-0.000389999999999999	-0.00113182408271022	-0.00176285733832268	-0.00222132983511081	-0.00246236309072327	-0.00246236309072327	-0.00222132983511081	-0.00176285733832268	-0.00113182408271022	-0.000390000000000000	0.000389999999999999	0.00113182408271022	0.00176285733832268	0.00222132983511081	0.00246236309072327];
Y1 = [0.000390000000000000	0.00113182408271022	0.00176285733832268	0.00222132983511081	0.00246236309072327	0.00246236309072327	0.00222132983511081	0.00176285733832268	0.00113182408271022	0.000390000000000000	-0.000389999999999999	-0.00113182408271022	-0.00176285733832268	-0.00222132983511081	-0.00246236309072327	-0.00246236309072327	-0.00222132983511081	-0.00176285733832268	-0.00113182408271022	-0.000390000000000000];

quiver(X1(1,1),Y1(1,1))
axis equal
for j = 2:20
hold on
quiver(X1(1,j),Y1(1,j))
hold off
end

Answer 1

[Askic V]

I would do with a different approcah to have more fexibility and control over how vectors would look like.

Here is a sample code:

clear
clc
close all
xc = 1; % x center coordinate
yc = 1; % y center coordinate
r = 0.2; % radius
angles = linspace(0, 360, 10);
x = r*cosd(angles)+xc;
y = r*sind(angles)+yc;

figure
hold on;
for i = 1: numel(x)
   quiver(xc,yc, x(i)-xc,y(i)-yc,'off');
end