(- 1 (exp (- x)))

Average Error: 38.8 → 38.8

Time: 1.2s

Precision: binary64

Math

\[1 - e^{-x}\]

↓

\[1 - e^{-x}\]

Error

Bits error versus x

Derivation

1. Initial program 38.8

   \[1 - e^{-x}\]

2. Final simplification 38.8

   \[\leadsto 1 - e^{-x}\]

Reproduce

herbie shell --seed 2020153 
(FPCore (x)
  :name "(- 1 (exp (- x)))"
  :precision binary64
  (- 1.0 (exp (neg x))))