I am currently doing a project about Growth and have found this really interesting Math Model by Dr. Geoffrey West et al in 2001 while researching.
I was wondering how does one integrate the differential equation
where is a function in terms of and , are constants.
The end result (the integrated expression):
where is another constant (in the context of the problem, the initial mass of organism when ).
I have tried solving by the integrating factors method but I couldn't express it in the form given... Anyone has any ideas?