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When precise computations are necessary, consider alternative representations that may be able to completely represent values. For example, if you are performing arithmetic on decimal values and need an exact decimal rounding, represent the values in binary-coded decimal instead of using floating point. Another option is decimal floating-point arithmetic as specified by ANSI/IEEE 754-2007. ISO/IEC WG14 has drafted a proposal to add support for decimal floating-point arithmetic to the C language \[[ISO/IEC DTR 24732|AA. C References#ISO/IEC DTR 24732]\]. |
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