Average Error: 0.4 → 0.1
Time: 3.4m
Precision: 64
Internal Precision: 576
\[\frac{1 - 5 \cdot \left(v \cdot v\right)}{\left(\left(\pi \cdot t\right) \cdot \sqrt{2 \cdot \left(1 - 3 \cdot \left(v \cdot v\right)\right)}\right) \cdot \left(1 - v \cdot v\right)}\]
\[\left(v \cdot v + 1\right) \cdot \frac{\frac{\frac{1 + v \cdot \left(v \cdot -5\right)}{\pi}}{\sqrt{\left(v \cdot 2\right) \cdot \left(v \cdot -3\right) + 2}}}{t \cdot \left(1 - \left(v \cdot v\right) \cdot \left(v \cdot v\right)\right)}\]

Error

Bits error versus v

Bits error versus t

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 0.4

    \[\frac{1 - 5 \cdot \left(v \cdot v\right)}{\left(\left(\pi \cdot t\right) \cdot \sqrt{2 \cdot \left(1 - 3 \cdot \left(v \cdot v\right)\right)}\right) \cdot \left(1 - v \cdot v\right)}\]
  2. Initial simplification0.3

    \[\leadsto \frac{\frac{1 + \left(-5 \cdot v\right) \cdot v}{\pi}}{\sqrt{\left(-3 \cdot v\right) \cdot \left(v \cdot 2\right) + 2} \cdot \left(t \cdot \left(1 - v \cdot v\right)\right)}\]
  3. Using strategy rm
  4. Applied associate-/r*0.1

    \[\leadsto \color{blue}{\frac{\frac{\frac{1 + \left(-5 \cdot v\right) \cdot v}{\pi}}{\sqrt{\left(-3 \cdot v\right) \cdot \left(v \cdot 2\right) + 2}}}{t \cdot \left(1 - v \cdot v\right)}}\]
  5. Using strategy rm
  6. Applied flip--0.1

    \[\leadsto \frac{\frac{\frac{1 + \left(-5 \cdot v\right) \cdot v}{\pi}}{\sqrt{\left(-3 \cdot v\right) \cdot \left(v \cdot 2\right) + 2}}}{t \cdot \color{blue}{\frac{1 \cdot 1 - \left(v \cdot v\right) \cdot \left(v \cdot v\right)}{1 + v \cdot v}}}\]
  7. Applied associate-*r/0.1

    \[\leadsto \frac{\frac{\frac{1 + \left(-5 \cdot v\right) \cdot v}{\pi}}{\sqrt{\left(-3 \cdot v\right) \cdot \left(v \cdot 2\right) + 2}}}{\color{blue}{\frac{t \cdot \left(1 \cdot 1 - \left(v \cdot v\right) \cdot \left(v \cdot v\right)\right)}{1 + v \cdot v}}}\]
  8. Applied associate-/r/0.1

    \[\leadsto \color{blue}{\frac{\frac{\frac{1 + \left(-5 \cdot v\right) \cdot v}{\pi}}{\sqrt{\left(-3 \cdot v\right) \cdot \left(v \cdot 2\right) + 2}}}{t \cdot \left(1 \cdot 1 - \left(v \cdot v\right) \cdot \left(v \cdot v\right)\right)} \cdot \left(1 + v \cdot v\right)}\]
  9. Final simplification0.1

    \[\leadsto \left(v \cdot v + 1\right) \cdot \frac{\frac{\frac{1 + v \cdot \left(v \cdot -5\right)}{\pi}}{\sqrt{\left(v \cdot 2\right) \cdot \left(v \cdot -3\right) + 2}}}{t \cdot \left(1 - \left(v \cdot v\right) \cdot \left(v \cdot v\right)\right)}\]

Runtime

Time bar (total: 3.4m)Debug logProfile

herbie shell --seed 2018252 
(FPCore (v t)
  :name "Falkner and Boettcher, Equation (20:1,3)"
  (/ (- 1 (* 5 (* v v))) (* (* (* PI t) (sqrt (* 2 (- 1 (* 3 (* v v)))))) (- 1 (* v v)))))