pub fn exp(x: f32) -> f32
Expand description
Compute a fast approximation to ex
.
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.
If x
is NaN, exp
returns NaN.
See also exp_raw
which only works on -104 ≤ x
≤ 104,
but is % faster.