Average Error: 15.1 → 0.9
Time: 20.7s
Precision: 64
Internal Precision: 576
\[\sqrt[3]{\frac{g}{2 \cdot a}}\]
↓
\[\frac{\sqrt[3]{-1}}{\sqrt[3]{a}} \cdot \left(\sqrt[3]{\frac{-1}{2}} \cdot \sqrt[3]{g}\right)\]

Error

Bits error versus g

Bits error versus a

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 15.1

    \[\sqrt[3]{\frac{g}{2 \cdot a}}\]
  2. Using strategy rm

  3. Applied cbrt-div0.8

    \[\leadsto \color{blue}{\frac{\sqrt[3]{g}}{\sqrt[3]{2 \cdot a}}}\]

  4. Taylor expanded around -inf 62.7

    \[\leadsto \color{blue}{e^{\frac{1}{3} \cdot \left(\log -1 - \log \left(\frac{-1}{g}\right)\right)} \cdot e^{\frac{1}{3} \cdot \left(\log \left(\frac{-1}{a}\right) + \log \frac{-1}{2}\right)}}\]

  5. Simplified0.8

    \[\leadsto \color{blue}{\sqrt[3]{\frac{-1}{a}} \cdot \left(\sqrt[3]{\frac{-1}{2}} \cdot \sqrt[3]{g}\right)}\]
  6. Using strategy rm

  7. Applied cbrt-div0.9

    \[\leadsto \color{blue}{\frac{\sqrt[3]{-1}}{\sqrt[3]{a}}} \cdot \left(\sqrt[3]{\frac{-1}{2}} \cdot \sqrt[3]{g}\right)\]

  8. Final simplification0.9

    \[\leadsto \frac{\sqrt[3]{-1}}{\sqrt[3]{a}} \cdot \left(\sqrt[3]{\frac{-1}{2}} \cdot \sqrt[3]{g}\right)\]

Runtime

Time bar (total: 20.7s)Debug logProfile

herbie shell --seed 2018225 +o rules:numerics
(FPCore (g a)
  :name "2-ancestry mixing, zero discriminant"
  (cbrt (/ g (* 2 a))))