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I have re read the standard, what I wrote has errors I will fix up later. |
m Standard headings &/or gen fixes. using AWB |
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==Format==
==Cohort==
A decimal floating point number can be encoded in several ways, the different ways represent different precisions, for example 100.0 is encoded as 1000*10<sup>-1</sup>, 100.00 is encoded as 10000*10<sup>-2</sup>. The set of possible encodings of the same numerical value is called a ''cohort'' in the standard. If the result of a calculation is inexact the largest amount of significant data is preserved by selecting the cohort member with the largest integer that can be stored in the significand along with the required exponent.
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[http://www2.hursley.ibm.com/decimal/decperf.html], however as both packages are available as open-source these figures could be verified indepedently.
==See
[[IEEE 754r]]
==References==
{{reflist}}
[[Category:Computer arithmetic]]
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