Average Error: 0.2 → 0.2
Time: 3.2s
Precision: binary64
\[\frac{a}{-\cos^{-1} a}\]
\[\frac{a}{-\cos^{-1} a}\]

Error

Bits error versus a

Derivation

  1. Initial program 0.2

    \[\frac{a}{-\cos^{-1} a}\]
  2. Final simplification0.2

    \[\leadsto \frac{a}{-\cos^{-1} a}\]

Reproduce

herbie shell --seed 2020147 
(FPCore (a)
  :name "Fuzzer 001"
  :precision binary64
  (/ a (neg (acos a))))