Average Error: 0.3 → 0.0
Time: 7.4s
Precision: 64
Internal Precision: 384
\[\log x - \log \left(\log x\right)\]
↓
\[\log \left(\frac{x}{\log x}\right)\]

Error

Bits error versus x

Derivation

  1. Initial program 0.3

    \[\log x - \log \left(\log x\right)\]
  2. Using strategy rm

  3. Applied diff-log0.0

    \[\leadsto \color{blue}{\log \left(\frac{x}{\log x}\right)}\]

Runtime

Time bar (total: 7.4s)Debug log

herbie shell --seed '#(2151728608 3767143998 4065594768 704903143 4284770345 1704475780)' 
(FPCore (x)
  :name "Jmat.Real.lambertw, estimator"
  (- (log x) (log (log x))))