Average Error: 0.3 → 0.0
Time: 11.9s
Precision: 64
Internal precision: 128
\[\log x - \log \left(\log x\right)\]
⬇
\[\log \left(\frac{x}{\log x}\right)\]

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-log 0.0

    \[\leadsto \color{blue}{\log \left(\frac{x}{\log x}\right)}\]
  4. Removed slow pow expressions

Runtime

Time bar (total: 11.9s) Debug log

Please include this information when filing a bug report:

herbie --seed '#(1635230371 1322641694 3222437674 205078708 3802249275 429827893)'
(FPCore (x)
  :name "Jmat.Real.lambertw, estimator"
  (- (log x) (log (log x))))