Hi,
I know it is in response to your very old post. But I also have the same negative concentration. And I am not able to incorporate the trick you suggested in this post. How do you have 2 variables for concentration c and C?
I know it is in response to your very old post. But I also have the same negative concentration. And I am not able to incorporate the trick you suggested in this post. How do you have 2 variables for concentration c and C?