question: odesolve with units, boundary conditions

Hi Jun,

I will point out a couple of issues that I have noticed:

1. Your units do not match in your differential equation. I believe the right hand side should have units if (cm^-3)*s

2. You use the variable alpha in your differential equation, but you have not defined alpha anywhere. The solve block is not putting the error on alpha because there is a built-in constant alpha that the solve block assumes you're using. However, this constant has no units, and in order for your equation to work with units, alpha must have units of [length]^-1

There may be other problems, but at a minimum, the above issues must be addressed