Average Error: 14.0 → 8.2
Time: 51.5s
Precision: 64
Internal Precision: 320
\[w0 \cdot \sqrt{1 - {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2} \cdot \frac{h}{\ell}}\]
\[\left|\sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(\left(\frac{\frac{M}{2}}{\frac{d}{D}} \cdot \frac{-1}{\ell}\right) \cdot h\right) + 1)_*}\right| \cdot w0\]

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 14.0

    \[w0 \cdot \sqrt{1 - {\left(\frac{M \cdot D}{2 \cdot d}\right)}^{2} \cdot \frac{h}{\ell}}\]
  2. Initial simplification13.7

    \[\leadsto \sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}} \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  3. Using strategy rm
  4. Applied div-inv13.7

    \[\leadsto \sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}} \cdot \frac{\frac{M}{2}}{\color{blue}{d \cdot \frac{1}{D}}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  5. Applied associate-/r*14.2

    \[\leadsto \sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}} \cdot \color{blue}{\frac{\frac{\frac{M}{2}}{d}}{\frac{1}{D}}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  6. Using strategy rm
  7. Applied associate-/r/13.8

    \[\leadsto \sqrt{(\left(\color{blue}{\left(\frac{\frac{M}{2}}{d} \cdot D\right)} \cdot \frac{\frac{\frac{M}{2}}{d}}{\frac{1}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot w0\]
  8. Using strategy rm
  9. Applied add-sqr-sqrt13.8

    \[\leadsto \sqrt{\color{blue}{\sqrt{(\left(\left(\frac{\frac{M}{2}}{d} \cdot D\right) \cdot \frac{\frac{\frac{M}{2}}{d}}{\frac{1}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*} \cdot \sqrt{(\left(\left(\frac{\frac{M}{2}}{d} \cdot D\right) \cdot \frac{\frac{\frac{M}{2}}{d}}{\frac{1}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*}}} \cdot w0\]
  10. Applied rem-sqrt-square13.8

    \[\leadsto \color{blue}{\left|\sqrt{(\left(\left(\frac{\frac{M}{2}}{d} \cdot D\right) \cdot \frac{\frac{\frac{M}{2}}{d}}{\frac{1}{D}}\right) \cdot \left(-\frac{h}{\ell}\right) + 1)_*}\right|} \cdot w0\]
  11. Simplified12.1

    \[\leadsto \left|\color{blue}{\sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(\left(-\frac{h}{\ell}\right) \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) + 1)_*}}\right| \cdot w0\]
  12. Using strategy rm
  13. Applied div-inv12.1

    \[\leadsto \left|\sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(\left(-\color{blue}{h \cdot \frac{1}{\ell}}\right) \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) + 1)_*}\right| \cdot w0\]
  14. Applied distribute-lft-neg-in12.1

    \[\leadsto \left|\sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \left(\color{blue}{\left(\left(-h\right) \cdot \frac{1}{\ell}\right)} \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right) + 1)_*}\right| \cdot w0\]
  15. Applied associate-*l*8.2

    \[\leadsto \left|\sqrt{(\left(\frac{\frac{M}{2}}{\frac{d}{D}}\right) \cdot \color{blue}{\left(\left(-h\right) \cdot \left(\frac{1}{\ell} \cdot \frac{\frac{M}{2}}{\frac{d}{D}}\right)\right)} + 1)_*}\right| \cdot w0\]
  16. Final simplification8.2

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

Runtime

Time bar (total: 51.5s)Debug logProfile

BaselineHerbieOracleSpan%
Regimes8.28.27.40.80%
herbie shell --seed 2018263 +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))))))