(- 1 (exp (- x)))

Average Error: 39.1 → 39.1

Time: 1.3s

Precision: binary64

Math

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

↓

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

Error

Bits error versus x

Derivation

1. Initial program 39.1

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

2. Final simplification 39.1

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

Reproduce

herbie shell --seed 2020152 
(FPCore (x)
  :name "(- 1 (exp (- x)))"
  :precision binary64
  (- 1.0 (exp (neg x))))