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is an option for NumberForm and related functions which specifies how the mantissa, base and exponent should be assembled into a final print form.
  • With the setting NumberFormat->f, the function f is supplied with three arguments: the mantissa, base and exponent of each number to be printed.  »
  • The arguments are all given as strings.  »
  • When no exponent is to be printed, the third argument is given as "".  »
  • The function f must return the final format for the number.
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