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Reference.org
Octuple-precision floating-point format
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<p>In <a href="/facts/Computing/Kghtm9fX">computing</a>, octuple precision is a binary <a href="/facts/Floating-point/eIckahxe">floating-point</a>-based <a href="/facts/Computer_number_format/fmLUI4hh">computer number format</a> that occupies 32 <a href="/facts/Byte/BNHUp9Qq">bytes</a> (256 <a href="/facts/Bit/S972NSaD">bits</a>) in computer memory. This 256-<a href="/facts/Bit/S972NSaD">bit</a> octuple precision is for applications requiring results in higher than <a href="/facts/Quadruple_precision/50oPmapW">quadruple precision</a>. </p><p>The range greatly exceeds what is needed to describe all known physical limitations within the observable universe or precisions better than <a href="/facts/Planck_units/xDU6KlDM">planck units</a>. </p>