matlab sovle newton raphson method

Hi, i am trying to input formula 30 and 31 into matlab and solve using newton raphson method in order to determine the value of 'a' and subsequently find the horizontal forces in a catenary mooring line:

The forumala and where it was obtained from can be seen in pdf below: http://deepblue.lib.umich.edu/bitstream/handle/2027.42/91661/Publication_No_333.pdf

Please can anyone offer advise.

Thanks, N

Answer 1

[George Papazafeiropoulos]

Look for the following Newton-Raphson solver in the File Exchange:

http://www.mathworks.com/matlabcentral/fileexchange/44315-newton-method-with-line-search

George