function mn=div(m)
% function mn=div(m)  used by driver program to divide a row by a constant
% This function reads the row number and constant
%   to divide a row in m by - used in driver;
%   by Ozgur Bayazitoglu.
r=input('give the row to work on  ');
cnst=input('enter the constant to divide by ');
m(r,:)=m(r,:)/cnst;
mn=m;
