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float128
Convert to 128-bit float (quad precision, ~31 digits).
Syntax
float128(x) → Float128 value
Backends
TypeScript
Description
Produces a double-double value (hi + lo pair) giving ~106 significant bits. Scalar float128 arithmetic (+, -, *, /, ^, sqrt, comparisons) is computed in genuine extended precision. See the Quad Precision tutorial.
Parameters
| Name | Description |
|---|---|
| x | Value to convert |
Returns
Float128 value