Formatted Numeric Output
May 18, 2012
It is often necessary for programs to produce numeric output in various formats, and most languages provide libraries for this purpose; for instance, C provides the
printf function, which includes the
f format specifications for decimal numbers (integers) and floating point numbers, respectively.
Your task is to write library functions that format integers and floating point numbers; you may follow the formatting conventions of C, or those of some other language, or invent your own. When you are finished, you are welcome to read or run a suggested solution, or to post your own solution or discuss the exercise in the comments below.
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