file = fopen('lab_3.txt', 'w')
for x = 0 : 1 : 8
   A = rand(10)
   cond(A)
   [u d v] = svd(A)
   d = eye(10)
   d(1,1) = 10.^x
   M1 = u*d*v'
   cond(M1)
   if issymmetric(M1) ~= 0
       prinf("error")
   end
   formatSpec='%.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f %.4f\n'
   fprintf(file, formatSpec, M1)
end
fclose(file)