Average Error: 0.0 → 0.0
Time: 3.9s
Precision: 64
Internal Precision: 384
\[\left(x \cdot x\right) \cdot 2.0 - 1.0\]
↓
\[\left(x \cdot x\right) \cdot 2.0 - 1.0\]

Error

Bits error versus x

Target

Original0.0
Target0.0
Herbie0.0
\[\left(x \cdot x\right) \cdot 2.0 - 1.0\]

Derivation

  1. Initial program 0.0

    \[\left(x \cdot x\right) \cdot 2.0 - 1.0\]

Runtime

Time bar (total: 3.9s)Debug log

herbie shell --seed '#(1567391828 2030694642 2833800258 828025724 3004380912 3532991858)' +o setup:early-exit +o reduce:binary-search
(FPCore (x)
  :name "Numeric.SpecFunctions:logGammaCorrection from math-functions-0.1.5.2"

  :herbie-target
  (- (* (* x x) 2.0) 1.0)

  (- (* (* x x) 2.0) 1.0))