Average Error: 14.5 → 0.3
Time: 45.6s
Precision: 64
Internal Precision: 128
\[\left(\frac{\pi}{2} \cdot \frac{1}{b \cdot b - a \cdot a}\right) \cdot \left(\frac{1}{a} - \frac{1}{b}\right)\]
\[\frac{\frac{\frac{1}{a} \cdot \pi - \frac{\pi}{b}}{2 \cdot \left(a + b\right)}}{b - a}\]

Error

Bits error versus a

Bits error versus b

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 14.5

    \[\left(\frac{\pi}{2} \cdot \frac{1}{b \cdot b - a \cdot a}\right) \cdot \left(\frac{1}{a} - \frac{1}{b}\right)\]
  2. Initial simplification0.3

    \[\leadsto \frac{\frac{1}{a} - \frac{1}{b}}{b - a} \cdot \frac{\frac{\pi}{2}}{a + b}\]
  3. Using strategy rm
  4. Applied associate-*l/0.3

    \[\leadsto \color{blue}{\frac{\left(\frac{1}{a} - \frac{1}{b}\right) \cdot \frac{\frac{\pi}{2}}{a + b}}{b - a}}\]
  5. Simplified0.3

    \[\leadsto \frac{\color{blue}{\frac{\frac{\pi}{a} - \frac{\pi}{b}}{\left(a + b\right) \cdot 2}}}{b - a}\]
  6. Using strategy rm
  7. Applied clear-num0.3

    \[\leadsto \frac{\frac{\color{blue}{\frac{1}{\frac{a}{\pi}}} - \frac{\pi}{b}}{\left(a + b\right) \cdot 2}}{b - a}\]
  8. Using strategy rm
  9. Applied associate-/r/0.3

    \[\leadsto \frac{\frac{\color{blue}{\frac{1}{a} \cdot \pi} - \frac{\pi}{b}}{\left(a + b\right) \cdot 2}}{b - a}\]
  10. Final simplification0.3

    \[\leadsto \frac{\frac{\frac{1}{a} \cdot \pi - \frac{\pi}{b}}{2 \cdot \left(a + b\right)}}{b - a}\]

Runtime

Time bar (total: 45.6s)Debug logProfile

BaselineHerbieOracleSpan%
Regimes0.30.30.00.30%
herbie shell --seed 2018355 
(FPCore (a b)
  :name "NMSE Section 6.1 mentioned, B"
  (* (* (/ PI 2) (/ 1 (- (* b b) (* a a)))) (- (/ 1 a) (/ 1 b))))