function norma = normaMat(A ,typ)
    [m, n] = size(A);
    B = [];

     if(typ == "inf")
         for(i = 1:m)
             s = 0;
             for(j = 1:n)
                 s = s + abs(A(i,j));
                 B(i)=s;
             end
         end
     else if(typ == 1)
             for(i = 1:n)
                 s = 0;
                 for(j = 1:m)
                     s = s + abs(A(j,i));
                     B(i)=s;
                 end
             end
          else
             error("Errore! Valore di norma errato!")
         end

     end
     norma = max(B);
endfunction