Please edit your code to make it readable. Even when I format it, I cannot understand what you are doing with it, and I am sure MATLAB is having the same problem. Also, other than the square brackets that enclose the matrix, use parentheses, not square brackets, within the matrix. It is easier to read, and less subject to error. I would also avoid using continuation ellipses, since MATLAB will then assume those are supposed to be single lines.
The numeric ODE solvers require that your ODE function return a column vector. The easiest way to assure that is to provide all the constants and a random vector for ‘x’. When MATLAB can understand it outsiide of any ODE solver and produce a column vector from it, you can use the ODE solvers with it.
