# Matlab Function returns values

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lilly lord on 8 Feb 2021
Commented: lilly lord on 8 Feb 2021
Hi. I have written a function which should return two sequences but it returns only single sequence. I have attached the code below if any one help me in this regard. Thanks in advance
function [X, Y ]= Hybrid(a,b,w0,s0,c,u);
%a=1.4, b=0.3, wo= 0.1, s0=0.1, c=0.4, u=0.9
x(1)=0;
y(1)=0;
x0=0;y0=0;
% Initialize
t=0.4-6/(1+x0^2+y0^2);
x(1,1)=1+u*(x0*cos(t)-y0*sin(t));% mu is u
y(1,1)=u*(x0*sin(t)+y0*cos(t));
% Simulate
n=10000;
X1=[];
Y1=[];
for i=2:n
t=0.4-6/(1+x(i-1,1)^2+y(i-1,1)^2);
x(i,1)=1+u*(x(i-1,1)*cos(t)-y(i-1,1)*sin(t));
x_1(i,1)=mod(ceil(abs(x(i))*10000),256);
%x2_new = unique(x_1,'stable');
y(i,1)=u*(x(i-1,1)*sin(t)+y(i-1,1)*cos(t));
y_1(i,1)=mod(ceil(abs(y(i,1))*10000),256);
%y2_new=unique(y_1,'stable');
X1=x_1;
Y1=y_1;
end
plot(x,y,'.','MarkerSize',4)
X=unique(mod(x_1,256),'stable')'; % unique pooints of x chaotic sequence
Y=unique(mod(y_1,256),'stable')'; % unique point of y choatic sequence
end
It returns only X sequence

the cyclist on 8 Feb 2021
How are you calling the function? If you call it like this
Hybrid(a,b,w0,s0,c,u)
then it will only return the first output. But it should return both if you call it like this
[X,Y]= Hybrid(a,b,w0,s0,c,u)
lilly lord on 8 Feb 2021
Oh my God. U r 100 % right. Thank u very much.