[Date Prev] | [Thread Prev] | [Thread Next] | [Date Next] -- [Date Index] | [Thread Index] | [List Home]
Subject: Re: [office-formula] 48 bits?
Patrick Durusau: > I can't speak to the "need" to handle exactly 53 bits but why create a > variation from IEEE 754's 64-bit representation for numbers? There's *no* variation. The text explains the implications of *using* the IEEE standard... we are NOT changing anything. Many implementations do not support an infinite number of bits :-). Therefore, it's useful to specify a range that *is* guaranteed to be supported. Most people use IEEE 64-bit or better (e.g., 80-bit), and thus have at least 53 bits for the mantissa. Thus, if you're using integers, 48 bits of significance is within a portable range. --- David A. Wheeler