MATLAB: Solving for a variable with varying parameters in the sum

Question

being the unknown variable, how to initialize and write the following equation in matlab script containing varying paramters.

(n = 0,1,2,…)

Answer 1

You cannot. That describes an infinite summation where you need to solve all infinite I_m values.

You cannot truncate it because truncation would imply that if you were to make some I_m indefinitely big for some "large" m, that it would not make a substantial difference to the summation -- but clearly if you know the a_m c_m_n R_m_n values then you can create a corresponding I_m value that overwhelms any previous sum you might have had.