1:29 >perl -wE "printf qq[%21.18f\t%.1f\t%4.1f\n], ($_ + 0.05) x 3 for 0 .. 10;" 0.050000000000000003 0.1 0.1 1.050000000000000000 1.1 1.1 2.049999999999999800 2.0 2.0 3.049999999999999800 3.0 3.0 4.049999999999999800 4.0 4.0 5.049999999999999800 5.0 5.0 6.049999999999999800 6.0 6.0 7.049999999999999800 7.0 7.0 8.050000000000000700 8.1 8.1 9.050000000000000700 9.1 9.1 10.050000000000001000 10.1 10.1 1:29 >