tan(pi/2) = infinity; now try to do this is C

This is a discussion on tan(pi/2) = infinity; now try to do this is C within the C Programming forums, part of the General Programming Boards category; hello taken from: dinkumware INFINITY #define INFINITY <float rvalue> [added with C99] The macro yields a float value that represents ...

  1. #16
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    hello

    taken from:
    dinkumware

    INFINITY

    #define INFINITY <float rvalue> [added with C99]

    The macro yields a float value that represents positive infinity.
    isfinite

    #define isfinite(x) <int rvalue> [added with C99, bool functions in C++]

  2. #17
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    Quote Originally Posted by cdalten
    C only supports floating point operations (IEEE format or whatever else). If you want fixed point operations, you have to implement it yourself.
    Sure. I'm not sure what the significance is to this thread though.
    Quote Originally Posted by cdalten
    Also, IEEE format is sign * mantissa *2^exponent. Remember, its base 2, not base 10.
    Incorrect. THe specification of floating point is in terms of sign*mantissa*10^exponent. The individual fields in the floating point variable (mantissa and exponent) will be represented in binary, but that doesn't mean floating point formats are specified as you have stated here.

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