Hi Folks, Got another quick question for you. I am trying to enter the folowing function into MATLAB to get a plot graph. However I am getting the following error. I know its something to do with the size of the arrays, however I dont understand how to get around the problem. Thank you in advance for your pearls of wisdom. >> t=linspace(0,6); >> vC= 2*exp(-2*t)+ 4*t*exp(-2*t); ??? Error using ==> mtimes Inner matrix dimensions must agree. jag.