printf("%.55f", 1.8 + 0.1) : printf « Development « Ruby






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  3. printf

printf("%.55f", 1.8 + 0.1)


printf("%.55f", 1.8 + 0.1)








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1.Use printf to print the output to your display (the default standard output device).
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4.printf prints its arguments under the control of a format string