Average Error: 1.0 → 0.0
Time: 1.2m
Precision: 64
Internal Precision: 320
\[\frac{4}{\left(\left(3 \cdot \pi\right) \cdot \left(1 - v \cdot v\right)\right) \cdot \sqrt{2 - 6 \cdot \left(v \cdot v\right)}}\]
\[\frac{(\left((v \cdot v + 1)_*\right) \cdot \left(v \cdot v\right) + 1)_* \cdot \frac{\frac{\frac{4}{3}}{\pi}}{1 - {\left(v \cdot v\right)}^{3}}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]

Error

Bits error versus v

Derivation

  1. Initial program 1.0

    \[\frac{4}{\left(\left(3 \cdot \pi\right) \cdot \left(1 - v \cdot v\right)\right) \cdot \sqrt{2 - 6 \cdot \left(v \cdot v\right)}}\]
  2. Initial simplification0.0

    \[\leadsto \frac{\frac{\frac{\frac{4}{3}}{\pi}}{1 - v \cdot v}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]
  3. Using strategy rm
  4. Applied flip3--0.0

    \[\leadsto \frac{\frac{\frac{\frac{4}{3}}{\pi}}{\color{blue}{\frac{{1}^{3} - {\left(v \cdot v\right)}^{3}}{1 \cdot 1 + \left(\left(v \cdot v\right) \cdot \left(v \cdot v\right) + 1 \cdot \left(v \cdot v\right)\right)}}}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]
  5. Applied associate-/r/0.0

    \[\leadsto \frac{\color{blue}{\frac{\frac{\frac{4}{3}}{\pi}}{{1}^{3} - {\left(v \cdot v\right)}^{3}} \cdot \left(1 \cdot 1 + \left(\left(v \cdot v\right) \cdot \left(v \cdot v\right) + 1 \cdot \left(v \cdot v\right)\right)\right)}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]
  6. Simplified0.0

    \[\leadsto \frac{\frac{\frac{\frac{4}{3}}{\pi}}{{1}^{3} - {\left(v \cdot v\right)}^{3}} \cdot \color{blue}{(\left((v \cdot v + 1)_*\right) \cdot \left(v \cdot v\right) + 1)_*}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]
  7. Final simplification0.0

    \[\leadsto \frac{(\left((v \cdot v + 1)_*\right) \cdot \left(v \cdot v\right) + 1)_* \cdot \frac{\frac{\frac{4}{3}}{\pi}}{1 - {\left(v \cdot v\right)}^{3}}}{\sqrt{(-6 \cdot \left(v \cdot v\right) + 2)_*}}\]

Runtime

Time bar (total: 1.2m)Debug logProfile

BaselineHerbieOracleSpan%
Regimes0.00.00.00.00%
herbie shell --seed 2018296 +o rules:numerics
(FPCore (v)
  :name "Falkner and Boettcher, Equation (22+)"
  (/ 4 (* (* (* 3 PI) (- 1 (* v v))) (sqrt (- 2 (* 6 (* v v)))))))