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decimal64 floating-point format
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<p>In <a href="/facts/Computing/Kghtm9fX">computing</a>, decimal64 is a <a href="/facts/Decimal_floating_point/1F9rG2Sn">decimal floating-point</a> <a href="/facts/Computer_number_format/fmLUI4hh">computer number format</a> that occupies 8 bytes (64 bits) in computer memory. </p><p>Decimal64 is a decimal floating-point format, formally introduced in the <a href="/facts/IEEE_754-2008_revision/gqqJPoYC">2008 revision</a> of the <a href="/facts/IEEE_754/dD3e7zAl">IEEE 754</a> standard, also known as ISO/IEC/IEEE 60559:2011. </p>