Decimal64 floating-point format
In computing, decimal64 is a decimal floating-point computer numbering format that occupies 8 bytes (64 bits) in computer memory.It is intended for applications where it is necessary to emulate decimal rounding exactly, such as financial and tax computations. Decimal64 floating point is a relatively new decimal floating-point format, formally introduced in the 2008 version of IEEE 754 as well as with ISO/IEC/IEEE 60559:2011.
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- enIn computing, decimal64 is a decimal floating-point computer numbering format that occupies 8 bytes (64 bits) in computer memory.It is intended for applications where it is necessary to emulate decimal rounding exactly, such as financial and tax computations. Decimal64 floating point is a relatively new decimal floating-point format, formally introduced in the 2008 version of IEEE 754 as well as with ISO/IEC/IEEE 60559:2011.
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- eny
- Date
- enJuly 2020
- Has abstract
- enIn computing, decimal64 is a decimal floating-point computer numbering format that occupies 8 bytes (64 bits) in computer memory.It is intended for applications where it is necessary to emulate decimal rounding exactly, such as financial and tax computations. Decimal64 supports 16 decimal digits of significand and an exponent range of −383 to +384, i.e. ±0.000000000000000×10−383 to ±9.999999999999999×10384. (Equivalently, ±0000000000000000×10−398 to ±9999999999999999×10369.) In contrast, the corresponding binary format, which is the most commonly used type, has an approximate range of ±0.000000000000001×10−308 to ±1.797693134862315×10308. Because the significand is not normalized, most values with less than 16 significant digits have multiple possible representations; 1 × 102=0.1 × 103=0.01 × 104, etc. Zero has 768 possible representations (1536 if both signed zeros are included). Decimal64 floating point is a relatively new decimal floating-point format, formally introduced in the 2008 version of IEEE 754 as well as with ISO/IEC/IEEE 60559:2011.
- Hypernym
- Computer
- Is primary topic of
- Decimal64 floating-point format
- Label
- enDecimal64 floating-point format
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- Binary64
- Binary integer decimal
- Category:Computer arithmetic
- Category:Data types
- Category:Floating point types
- Computer numbering format
- Computing
- Dec64
- Decimal digit
- Decimal floating-point
- Declet (computing)
- Densely packed decimal
- Don't care
- Exponent
- IEC 10967
- IEEE 60559:2011
- IEEE 754
- IEEE 754-2008
- Infinity
- NaN
- Primitive data type
- Signed zero
- Significand
- Significant digits
- Subnormal numbers
- SameAs
- 4j6z5
- m.06w90gb
- Q5249165
- Subject
- Category:Computer arithmetic
- Category:Data types
- Category:Floating point types
- WasDerivedFrom
- Decimal64 floating-point format?oldid=1061111103&ns=0
- WikiPageLength
- 12033
- Wikipage page ID
- 23558700
- Wikipage revision ID
- 1061111103
- WikiPageUsesTemplate
- Template:=
- Template:Densely packed decimal
- Template:Floating-point
- Template:Gaps
- Template:Lowercase
- Template:Math
- Template:Mono
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- Template:Use dmy dates
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