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View https://docs.pgvecto.rs/reference/schema.html to see schema provided by pgvecto.rs.
### Functions
pgvecto.rs are lack of helper functions, and we need to provide more helper functions.
*…
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Zig doesn't provide `c_float` and `c_double` types. C doesn't fully guarantee how the `float` and `double` types are implemented, so shouldn't zig provide types for them instead of relying on `f32` a…
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The floating point encode step is a tricky bit to get right. Issue #10 shows that numerical stability issues can make a big difference in some edge cases.
Encoding each unique floating point value as…
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Section 3.3 of the specification has:
![image](https://user-images.githubusercontent.com/3592009/158998231-2662155a-d8eb-4c01-bd12-e86528eb5129.png)
and links to "IEEE Standard for Binary Floati…
cjw85 updated
2 years ago
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IEEE 754-2019 includes 3 new recommended operations to speed-up multi-word arithmetic and reproducible summations (e.g.: linear algebra libraries): augmentedAddition, augmentedSubtraction and augmente…
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In notes, the documentation says
> It is the same function as the Python standard library function math.lgamma.
Reference: https://docs.scipy.org/doc/scipy/reference/generated/scipy.special.gammal…
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The spec says https://ballerina.io/spec/lang/2021R1/#section_5.2.4.2
> The decimal type corresponds to the ANSI X3.274 subset of IEEE 754-2008
but also
> NaN, infinities and *subnormals* are …
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### Summary
Ability to convert between hexadecimal single & double-precision floating point in IEEE 754 to/from ascii decimal
### Example
32-bit (Single-precision) BE:
0x42…
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```
example: float("1") + float("INF") ==> Exception rather than float("INF")
I'm sure there are more combinations (e.g. -INF, using type double, etc.)
```
Original issue reported on code.google.co…
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第673天 请说说IEEE 754规定了哪些标准?
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