MATLAB: Mldivide error

Question

            Error using ==> mrdivide
Matrix dimensions must agree.

Error in ==> RF_Model at 179

h_L=0.86/sqrt(3+(1/2/lambda_i)+(0.86*l*u_B/pi/g/D_i)^2);

Answer 1

You probably want the vectorized version?

h_L=0.86./sqrt(3+(1./2./lambda_i)+(0.86.*l.*u_B./pi./g./D_i).^2);

Everything will be element by element instead of matrix division

doc vectorize