Average Error: 0.3 → 0.3
Time: 23.6s
Precision: 64
Internal Precision: 384
\[\log x - \log \left(\log x\right)\]
↓
\[\log x - \log \left(\log x\right)\]

Error

Bits error versus x

Derivation

  1. Initial program 0.3

    \[\log x - \log \left(\log x\right)\]
  2. Removed slow pow expressions.

Runtime

Time bar (total: 23.6s)Debug log

herbie shell --seed '#(1567391828 2030694642 2833800258 828025724 3004380912 3532991858)' +o setup:early-exit +o reduce:binary-search
(FPCore (x)
  :name "Jmat.Real.lambertw, estimator"
  (- (log x) (log (log x))))