## Unable to perform assignment because the size of the left side is 1-by-1 and the size of the right side is 921-by-1.

### Wilfredo Huaman (view profile)

on 14 Jun 2019
Latest activity Answered by Geoff Hayes

on 14 Jun 2019

### Geoff Hayes (view profile)

Having trouble getting this to work even tho it says it matches in the workspace i = 921 and c = 921x1 double but its give ther error in the for loop that alpha can not run with contains the 921x1 array. Any help would be appreciated.
t=0:i;
theta=zeros(i,1);
omega=zeros(i,1);
alpha=zeros(i,1);
Fr=zeros(i,1);
omega(1,:)=0; % initial angular velocity
alpha(1,:)=0; % initial angular acceleration
% Iteratively solve equations of motion using Euler's Method
for n=1:i
theta(n+1,:)=theta(n,:)+omega(n,:)*dt; % new angular position
omega(n+1,:)=omega(n,:)+alpha(n,:)*dt; % new angular velocity
alpha(n+1,:)=(-g*sin(theta(n+1,:)))/L-c(:,1)*omega(n+1,:); % new angular acceleration
Fr(n+1,:)=mass*g*cos(theta(n+1,:))+mass*L*(omega(n+1,:)).^2; % Reaction Force
end

on 14 Jun 2019