Error

Derivation

1. Initial program 12.3

   \[\left(\left(3 + \frac{2}{r \cdot r}\right) - \frac{\left(0.125 \cdot \left(3 - 2 \cdot v\right)\right) \cdot \left(\left(\left(w \cdot w\right) \cdot r\right) \cdot r\right)}{1 - v}\right) - 4.5\]

2. Initial simplification0.4

   \[\leadsto \left(3 + \frac{2}{r \cdot r}\right) - (\left(\frac{3 - 2 \cdot v}{\frac{1 - v}{0.125}}\right) \cdot \left(\left(w \cdot r\right) \cdot \left(w \cdot r\right)\right) + 4.5)_*\]
3. Using strategy rm

4. Applied div-inv0.4

   \[\leadsto \left(3 + \frac{2}{r \cdot r}\right) - (\left(\frac{3 - 2 \cdot v}{\color{blue}{\left(1 - v\right) \cdot \frac{1}{0.125}}}\right) \cdot \left(\left(w \cdot r\right) \cdot \left(w \cdot r\right)\right) + 4.5)_*\]

5. Applied *-un-lft-identity0.4

   \[\leadsto \left(3 + \frac{2}{r \cdot r}\right) - (\left(\frac{\color{blue}{1 \cdot \left(3 - 2 \cdot v\right)}}{\left(1 - v\right) \cdot \frac{1}{0.125}}\right) \cdot \left(\left(w \cdot r\right) \cdot \left(w \cdot r\right)\right) + 4.5)_*\]

6. Applied times-frac0.4

   \[\leadsto \left(3 + \frac{2}{r \cdot r}\right) - (\color{blue}{\left(\frac{1}{1 - v} \cdot \frac{3 - 2 \cdot v}{\frac{1}{0.125}}\right)} \cdot \left(\left(w \cdot r\right) \cdot \left(w \cdot r\right)\right) + 4.5)_*\]

7. Final simplification0.4

   \[\leadsto \left(3 + \frac{2}{r \cdot r}\right) - (\left(\frac{3 - 2 \cdot v}{\frac{1}{0.125}} \cdot \frac{1}{1 - v}\right) \cdot \left(\left(r \cdot w\right) \cdot \left(r \cdot w\right)\right) + 4.5)_*\]

Runtime

Time bar (total: 51.9s)Debug logProfile

herbie shell --seed 2018230 +o rules:numerics
(FPCore (v w r)
  :name "Rosa's TurbineBenchmark"
  (- (- (+ 3 (/ 2 (* r r))) (/ (* (* 0.125 (- 3 (* 2 v))) (* (* (* w w) r) r)) (- 1 v))) 4.5))