Average Error: 0.1 → 0.1
Time: 5.9s
Precision: 64
Internal Precision: 384
\[1.0 - x \cdot \left(0.253 + x \cdot 0.12\right)\]
↓
\[1.0 - x \cdot \left(0.253 + x \cdot 0.12\right)\]

Error

Bits error versus x

Target

Original0.1
Target0.1
Herbie0.1
\[1.0 - x \cdot \left(0.253 + x \cdot 0.12\right)\]

Derivation

  1. Initial program 0.1

    \[1.0 - x \cdot \left(0.253 + x \cdot 0.12\right)\]

Runtime

Time bar (total: 5.9s)Debug log

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

  :herbie-target
  (- 1.0 (* x (+ 0.253 (* x 0.12))))

  (- 1.0 (* x (+ 0.253 (* x 0.12)))))