Average Error: 17.2 → 13.1
Time: 4.4m
Precision: 64
Internal Precision: 4928
\[\pi \cdot \ell - \frac{1}{F \cdot F} \cdot \tan \left(\pi \cdot \ell\right)\]
\[(\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \left(\sqrt[3]{\sqrt[3]{\sin \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\sin \left(\pi \cdot \ell\right)}} \cdot \sqrt[3]{\frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{\cos \left(\ell \cdot \pi\right)}}\right)\right) + \left(\ell \cdot \pi\right))_*\]

Error

Bits error versus F

Bits error versus l

Derivation

  1. Initial program 17.2

    \[\pi \cdot \ell - \frac{1}{F \cdot F} \cdot \tan \left(\pi \cdot \ell\right)\]
  2. Using strategy rm
  3. Applied add-cube-cbrt17.3

    \[\leadsto \pi \cdot \ell - \frac{1}{F \cdot F} \cdot \color{blue}{\left(\left(\sqrt[3]{\tan \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\right) \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\right)}\]
  4. Applied associate-*r*17.3

    \[\leadsto \pi \cdot \ell - \color{blue}{\left(\frac{1}{F \cdot F} \cdot \left(\sqrt[3]{\tan \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\right)\right) \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}}\]
  5. Applied simplify14.3

    \[\leadsto \pi \cdot \ell - \color{blue}{\left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right)} \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\]
  6. Using strategy rm
  7. Applied add-cube-cbrt14.3

    \[\leadsto \pi \cdot \ell - \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \sqrt[3]{\color{blue}{\left(\sqrt[3]{\tan \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\right) \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}}}\]
  8. Taylor expanded around inf 14.3

    \[\leadsto \pi \cdot \ell - \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \frac{\sqrt[3]{\color{blue}{\frac{\sin \left(\pi \cdot \ell\right)}{\cos \left(\pi \cdot \ell\right)}}}}{F}\right) \cdot \sqrt[3]{\left(\sqrt[3]{\tan \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}\right) \cdot \sqrt[3]{\tan \left(\pi \cdot \ell\right)}}\]
  9. Applied simplify13.0

    \[\leadsto \color{blue}{(\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \sqrt[3]{\frac{\sin \left(\ell \cdot \pi\right)}{\cos \left(\ell \cdot \pi\right)}}\right) + \left(\ell \cdot \pi\right))_*}\]
  10. Using strategy rm
  11. Applied *-un-lft-identity13.0

    \[\leadsto (\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \sqrt[3]{\frac{\sin \left(\ell \cdot \pi\right)}{\color{blue}{1 \cdot \cos \left(\ell \cdot \pi\right)}}}\right) + \left(\ell \cdot \pi\right))_*\]
  12. Applied add-cube-cbrt13.0

    \[\leadsto (\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \sqrt[3]{\frac{\color{blue}{\left(\sqrt[3]{\sin \left(\ell \cdot \pi\right)} \cdot \sqrt[3]{\sin \left(\ell \cdot \pi\right)}\right) \cdot \sqrt[3]{\sin \left(\ell \cdot \pi\right)}}}{1 \cdot \cos \left(\ell \cdot \pi\right)}}\right) + \left(\ell \cdot \pi\right))_*\]
  13. Applied times-frac13.0

    \[\leadsto (\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \sqrt[3]{\color{blue}{\frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)} \cdot \sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{1} \cdot \frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{\cos \left(\ell \cdot \pi\right)}}}\right) + \left(\ell \cdot \pi\right))_*\]
  14. Applied cbrt-prod13.1

    \[\leadsto (\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \color{blue}{\left(\sqrt[3]{\frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)} \cdot \sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{1}} \cdot \sqrt[3]{\frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{\cos \left(\ell \cdot \pi\right)}}\right)}\right) + \left(\ell \cdot \pi\right))_*\]
  15. Applied simplify13.1

    \[\leadsto (\left(\frac{-\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F}\right) \cdot \left(\frac{\sqrt[3]{\tan \left(\ell \cdot \pi\right)}}{F} \cdot \left(\color{blue}{\sqrt[3]{\sqrt[3]{\sin \left(\pi \cdot \ell\right)} \cdot \sqrt[3]{\sin \left(\pi \cdot \ell\right)}}} \cdot \sqrt[3]{\frac{\sqrt[3]{\sin \left(\ell \cdot \pi\right)}}{\cos \left(\ell \cdot \pi\right)}}\right)\right) + \left(\ell \cdot \pi\right))_*\]

Runtime

Time bar (total: 4.4m)Debug logProfile

herbie shell --seed '#(1072330854 3074818769 591214268 3603999196 3863745332 3332387116)' +o rules:numerics
(FPCore (F l)
  :name "VandenBroeck and Keller, Equation (6)"
  (- (* PI l) (* (/ 1 (* F F)) (tan (* PI l)))))