shz_invf_fsrra
SHZ_INLINE float shz_invf_fsrra(float x) SHZ_NOEXCEPT;Takes the inverse of x using a very fast approximation, returning a positive result.
Parameters
Section titled “Parameters”| Name | Type | Description |
|---|---|---|
x | float |
Returns
Section titled “Returns”float
Naming and requirements
Section titled “Naming and requirements”_fsrra: UsesFSRRA(fast approximate 1/sqrt(x)). The argument or denominator must be positive. Faster, less precise. (Naming and Suffixes)
Availability
Section titled “Availability”- C++ equivalent:
shz::invf_fsrra - Type-generic form: none
- Back-ends: SH4: shared C implementation · SW: portable C · SPU: shared C implementation
- Defined in:
sh4zam/shz_scalar.h:289 - Module: Scalar, section "FSRRA"