Matlab - Escribir una matriz en un fichero .txt

fid=fopen('coordenads.txt','w');

for i=1:255000

fprintf(fid,'%f\t%f\t%f\n',coor(i,1),coor(i,2),coor(i,3));

endt

fclose(fid);

>> clear all

coor=round(10*rand(3,6))

fid=fopen('coordenadas.txt','w');

[f,c]=size(coor);

for i=1:f

    for j=1:c

        fprintf(fid,'%f\t',coor(i,j));

    end

      fprintf(fid,'\n');

end

fclose(fid);

open('coordenadas.txt')

coor =

     7     1     2    10     1     8

     7     2     8     1    10     8

     5     9     5     4     0     9