Thread: Scientific Notation

  1. #1

    Question Scientific Notation

    Is there anyway to get a double type variable to print in scientific notation? My problem is to print some values to a file, but I end up with BIG values that would make MUCH more sense if I printed them in scientific notation.

  2. #2
    I think I solved the scientific notation problem, (the values were printed to a file, so I looked up fprintf) but one of my values is


    any idea why?

  3. #3
    and the hat of int overfl Salem's Avatar
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    Aug 2001
    The edge of the known universe
    NAN is Not A Number

    Undefined floating point results (eg. divide by 0) result in either a quiet NAN (QNAN) or a signalling NAN. A signalling NAN would have halted your program.

    Any operation on a NAN results in a NAN, so it doesn't go away just like that.

    Basically, you've got a math problem - either in the calculation, or because you're providing an uninitialised float as input.

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