Why do it yourself when printf can do it for you? 

print 6 - 1e-14;;
5.99999999999999

printf "%.f\n", 6 - 1e-14;;
6

printf "%.1f\n", 6 - 1e-14;;
6.0

printf "%.2f\n", 6 - 1e-14;;
6.00

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In reply to Re^2: for loop with float by BrowserUk
in thread for loop with float by RobertCraven

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