Average Error: 16.2 → 16.2
Time: 21.4s
Precision: 64
Internal Precision: 1344
\[\frac{\frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0} + 1.0}{2.0}\]
↓
\[\frac{\frac{{\left(\frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)}\right)}^{3} + {1.0}^{3}}{\left(\frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} \cdot \frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} - \frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} \cdot 1.0\right) + 1.0 \cdot 1.0}}{2.0}\]

Error

Bits error versus alpha

Bits error versus beta

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 16.2

    \[\frac{\frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0} + 1.0}{2.0}\]

  2. Initial simplification16.2

    \[\leadsto \frac{1.0 + \frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0}}{2.0}\]
  3. Using strategy rm

  4. Applied flip3-+16.2

    \[\leadsto \frac{\color{blue}{\frac{{1.0}^{3} + {\left(\frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0}\right)}^{3}}{1.0 \cdot 1.0 + \left(\frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0} \cdot \frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0} - 1.0 \cdot \frac{\beta - \alpha}{\left(\alpha + \beta\right) + 2.0}\right)}}}{2.0}\]

  5. Final simplification16.2

    \[\leadsto \frac{\frac{{\left(\frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)}\right)}^{3} + {1.0}^{3}}{\left(\frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} \cdot \frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} - \frac{\beta - \alpha}{2.0 + \left(\beta + \alpha\right)} \cdot 1.0\right) + 1.0 \cdot 1.0}}{2.0}\]

Runtime

Time bar (total: 21.4s)Debug logProfile

BaselineHerbieOracleSpan%
Regimes16.216.215.90.30%
herbie shell --seed 2018339 
(FPCore (alpha beta)
  :name "Octave 3.8, jcobi/1"
  :pre (and (> alpha -1) (> beta -1))
  (/ (+ (/ (- beta alpha) (+ (+ alpha beta) 2.0)) 1.0) 2.0))