I keep receiving an error while using the arctanh function on Matlab
Undefined function arctanh for input arguments of type 'double'.
I am doing this calculation
A = mu*arctanh(l2./(R2+R3))
Where l2 and R2 are vectors.
arctanh is only in MuPAD Notebook Interface:
http://www.mathworks.com/help/symbolic/mupad_ref/arctanh.html
Normally within MATLAB you should use atanh: