Week 2- 2R Robotic Arm Challenge

close all
clear all
clc 

%inputs
l1=1;
l2=0.5;
theta1 = linspace(0,90,10);  
theta2 = linspace(0,90,10);
ct=1;
for i = 1:length(theta1)
    THETA1 = theta1(i); 
for j = 1:length(theta2)
    THETA2 = theta2(j);
x0=0;
y0=0;

x1=l1*cosd(THETA1); 
y1=l1*sind(THETA1);

x2=x1+l2*cosd(THETA2);
y2=y1+l2*sind(THETA2);

%pollting 
hold on
plot([x0 x1],[y0 y1],[x1,x2],[y1,y2],'linewidth',3)
axis ([0.5 1.5 0 1.5])
pause(0.3)
ct=ct+1;
M(ct)=getframe(gcf);
end
end
movie (m)
video file = videowriter ('forward_kinematic.avi,'uncompressedAVI);
open(videofile)
write video (videofile,m)
close (videofile)

Error using line
Not enough input arguments.

Error in roboticarm (line 24)
line [x0 x1],[y0 y1],'linewidth',5,'color','r'

% forward kinematic robotic arm manipulation

clear all
close all
clc
  
%inputs
l1= 4;
l2 =2;
theta1 = 45;
theta2 = 30;

%coordinate
x0=0;
y0=0;

x1=l1*cosd(theta1);
y1=l1*sind(theta1);

x2=x1+l2*cosd(theta2);
y2=y1+l2*sind(theta2);

%pollting 
line([x0 x1],[y0 y1],'linewidth',3,'color','r')
line([x1 x2],[y1,y2],'linewidth',5,'color','b')