pub fn exp_raw(x: f32) -> f32
Expand description
Compute a fast approximation to ex
for
-104 ≤ x
≤ 104.
This will return unspecified nonsense if x
does not satisfy
those requirements. Use exp
if correct handling is required (at
the expense of some speed).
The maximum relative error for inputs for which the result is
normal (x
≥ -128 ln(2) ≈ -88.7) is less than
0.011. For x
< -128 ln(2), the relative error in the (subnormal)
result can be as large as 1.