Index exceeds number of array elements. How can I fix this?

clear
clc
close all

%%Length of links in m
L2=1.4
L3=4
L4=-1

%%Open vs Crossed 
OC='O'

%%Length of P in m
rp=3

%%delta angle in degrees
d_a=15

%%Convert delta to radians
da=d_a*(pi/180)

%%Omega2 in rad/s
OM2=10

%%Theta2 
for i=1:361
    theta2=(i-1)*pi/180
    theta_2(i)=theta2
end


%%Calculation of theta3  
if OC==['O']
    theta_3=180-asind((L2*sin(theta2)-L4)/(L3))
else
   theta_3=asind((L2*sin(theta2)-L4)/(L3)) 
end

%%Convert theta 3 to radians
theta3=theta_3*(pi/180)

%%Theta 4 to radians
theta4(i)=90*(pi/180)

%%Calculation of position L1
L1(i)=L2*cos(theta2)-L3*cos(theta3(i))

%%Omega 3
OM3(i)=OM2*((L2*cos(theta2))/(L3*cos(theta3(i))))

%%Linear velocity of slider
L1dot=-L2*OM2*sin(theta2)+L3*OM3(i)*sin(theta3(i))


Index
exceeds
the
number
of
array
elements.
Index
must
not
exceed
1.

Error in Hw10_1 (line 46)
L1(i)=L2*cos(theta2)-L3*cos(theta3(i))

Answer 1

[KSSV]

Replace this line:

L1(i)=L2*cos(theta2)-L3*cos(theta3(i))

with

L1=L2*cos(theta2)-L3*cos(theta3)