As a hw problem i was asked to write a MATLAB program that uses cartesian coordi

Question

As a hw problem i was asked to write a MATLAB program that uses cartesian coordinates to find the the location of a point relative to an origing in terms of polar coordinates(r and theta). I need to output a chart that displays the 'r' and theta for several sets of x and y. I am having trouble making it output for more than one set of x and y. here is my program! any help is really appreciated!

function [radius,angle] = polar_coordinates(x,y)

radius=(x.^2+y.^2);

angle=((atan(y/x)*(180/pi)));

if x<0 && y>0

angle=atan(y/x)*(180/pi)+180;

elseif x<0 && y<0

angle=atan(y/x)*(180/pi)-180;

elseif x<0 && y==0

angle=180;

elseif x==0 && y>0

angle=180/2;

elseif x==0 && y<0

angle=-180/2;

elseif x==0 && y==0

angle=0;

end

z=[x;y;radius;angle];

fprintf ('x y radius angle ');

fprintf('%d %3d %7.2f %9.2f ',z);

end

Explanation / Answer

clc
x=[2,2,0,-3,-2,-1,0,0,2];
y=[0,1,3,1,0,-2,0,-2,2];
radius = sqrt(x.^2+y.^2);
n = length(x);
angle = asin(y./radius)*(180/pi);

for i=1:n
if x(i)==0 && y(i)==0
angle(i) = 0;
elseif x(i)<=0 && y(i)>= 0
angle(i) = 180-angle(i);
elseif x(i)<=0 && y(i)<=0
angle(i) = -180-angle(i);
end
end
fprintf (' x y radius angle ');
for i=1:n
fprintf('%9.2f %9.2f %9.2f %9.2f ',x(i),y(i),radius(i),angle(i));
end

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