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11 Numeric Output Format

By default, units shows results to eight significant digits. You can change this with the --exponential, --digits, and --output-format options. The first sets an exponential format (i.e., scientific notation) like that used in the original Unix units program, the second allows you to specify a different number of significant digits, and the last allows you to control the output appearance using the format for the printf() function in the C programming language. If you only want to change the number of significant digits or specify exponential format type, use the --digits and --exponential options. The --output-format option affords the greatest control of the output appearance, but requires at least rudimentary knowledge of the printf() format syntax. See Invoking Units, for descriptions of these options.