exp neg sub

Average Error: 0.0 → 0.0

Time: 2.4s

Precision: 64

Math

\[e^{-\left(1 - x \cdot x\right)}\]

↓

\[e^{-\left(1 - x \cdot x\right)}\]

Error

Bits error versus x

Derivation

1. Initial program 0.0

   \[e^{-\left(1 - x \cdot x\right)}\]

2. Final simplification 0.0

   \[\leadsto e^{-\left(1 - x \cdot x\right)}\]

Reproduce

herbie shell --seed 2020128 
(FPCore (x)
  :name "exp neg sub"
  :precision binary64
  (exp (- (- 1.0 (* x x)))))