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Valid Range: float32: base in (0, +FLT_MAX], exp * log(base) in [-25.0, +25.0]
float64: base in (0, +DBL_MAX], exp * log(base) in [-25.0, +25.0]
Max Relative Error for Valid Range: float32 : 0.27%, float64 : 0.22%
Notably faster than HwyPow()[since there is no direct implementation for this, implemented HwyPow() using Hwy Log() and Exp()) on f64(1.50x), f32x8(1.34x) and f64x2(1.27x).
PiperOrigin-RevId: 876162832
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Add FastPow() function.
Valid Range: float32: base in (0, +FLT_MAX], exp * log(base) in [-25.0, +25.0]
float64: base in (0, +DBL_MAX], exp * log(base) in [-25.0, +25.0]
Max Relative Error for Valid Range: float32 : 0.27%, float64 : 0.22%
Notably faster than HwyPow()[since there is no direct implementation for this, implemented HwyPow() using Hwy Log() and Exp()) on f64(1.50x), f32x8(1.34x) and f64x2(1.27x).