Average Error: 13.3 → 7.9
Time: 34.2s
Precision: 64
Internal Precision: 320
\[w0 \cdot \sqrt{1 - {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2} \cdot \frac{h}{\ell}}\]
\[\left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(\left(\frac{-1}{\ell} \cdot \left(\sqrt[3]{\frac{D \cdot M}{2 \cdot d}} \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right)\right) \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right) \cdot h\right) + 1)_*}\right| \cdot w0\]

Error

Bits error versus w0

Bits error versus M

Bits error versus D

Bits error versus h

Bits error versus l

Bits error versus d

Derivation

  1. Initial program 13.3

    \[w0 \cdot \sqrt{1 - {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2} \cdot \frac{h}{\ell}}\]
  2. Initial simplification13.2

    \[\leadsto \sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}} \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  3. Using strategy rm
  4. Applied div-inv13.3

    \[\leadsto \sqrt{(\left(\color{blue}{\left(\frac{M}{2} \cdot \frac{1}{\frac{d}{D}}\right)} \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  5. Using strategy rm
  6. Applied add-sqr-sqrt13.3

    \[\leadsto \sqrt{\color{blue}{\sqrt{(\left(\left(\frac{M}{2} \cdot \frac{1}{\frac{d}{D}}\right) \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot \sqrt{(\left(\left(\frac{M}{2} \cdot \frac{1}{\frac{d}{D}}\right) \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*}}} \cdot w0\]
  7. Applied rem-sqrt-square13.3

    \[\leadsto \color{blue}{\left|\sqrt{(\left(\left(\frac{M}{2} \cdot \frac{1}{\frac{d}{D}}\right) \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*}\right|} \cdot w0\]
  8. Simplified11.8

    \[\leadsto \left|\color{blue}{\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(-\frac{h}{\ell}\right) \cdot \frac{D \cdot M}{2 \cdot d}\right) + 1)_*}}\right| \cdot w0\]
  9. Using strategy rm
  10. Applied div-inv11.8

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(-\color{blue}{h \cdot \frac{1}{\ell}}\right) \cdot \frac{D \cdot M}{2 \cdot d}\right) + 1)_*}\right| \cdot w0\]
  11. Applied distribute-lft-neg-in11.8

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\color{blue}{\left(\left(-h\right) \cdot \frac{1}{\ell}\right)} \cdot \frac{D \cdot M}{2 \cdot d}\right) + 1)_*}\right| \cdot w0\]
  12. Applied associate-*l*7.9

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \color{blue}{\left(\left(-h\right) \cdot \left(\frac{1}{\ell} \cdot \frac{D \cdot M}{2 \cdot d}\right)\right)} + 1)_*}\right| \cdot w0\]
  13. Using strategy rm
  14. Applied add-cube-cbrt7.9

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(-h\right) \cdot \left(\frac{1}{\ell} \cdot \color{blue}{\left(\left(\sqrt[3]{\frac{D \cdot M}{2 \cdot d}} \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right) \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right)}\right)\right) + 1)_*}\right| \cdot w0\]
  15. Applied associate-*r*7.9

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(-h\right) \cdot \color{blue}{\left(\left(\frac{1}{\ell} \cdot \left(\sqrt[3]{\frac{D \cdot M}{2 \cdot d}} \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right)\right) \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right)}\right) + 1)_*}\right| \cdot w0\]
  16. Final simplification7.9

    \[\leadsto \left|\sqrt{(\left(\frac{D \cdot M}{2 \cdot d}\right) \cdot \left(\left(\left(\frac{-1}{\ell} \cdot \left(\sqrt[3]{\frac{D \cdot M}{2 \cdot d}} \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right)\right) \cdot \sqrt[3]{\frac{D \cdot M}{2 \cdot d}}\right) \cdot h\right) + 1)_*}\right| \cdot w0\]

Runtime

Time bar (total: 34.2s)Debug logProfile

BaselineHerbieOracleSpan%
Regimes7.97.96.91.10%
herbie shell --seed 2018339 +o rules:numerics
(FPCore (w0 M D h l d)
  :name "Henrywood and Agarwal, Equation (9a)"
  (* w0 (sqrt (- 1 (* (pow (/ (* M D) (* 2 d)) 2) (/ h l))))))