Average Error: 33.9 → 0.8
Time: 6.6s
Precision: binary64
\[\]
\[\]
double code(double x, double y, double z, double t) {
	return ((double) (((double) (((double) (x * x)) / ((double) (y * y)))) + ((double) (((double) (z * z)) / ((double) (t * t))))));
}
double code(double x, double y, double z, double t) {
	return ((double) (((double) (((double) (x * ((double) (((double) cbrt(x)) / y)))) * ((double) (((double) cbrt(x)) * ((double) (((double) cbrt(x)) / y)))))) + ((double) (((double) (z / t)) * ((double) (z / t))))));
}

Error

Bits error versus x

Bits error versus y

Bits error versus z

Bits error versus t

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original33.9
Target0.4
Herbie0.8
\[\]

Derivation

  1. Initial program 33.9

    \[\]
  2. Simplified25.2

    \[\leadsto \]
  3. Using strategy rm
  4. Applied add-sqr-sqrt44.6

    \[\leadsto \]
  5. Applied times-frac40.9

    \[\leadsto \]
  6. Applied add-sqr-sqrt40.9

    \[\leadsto \]
  7. Applied unswap-sqr39.1

    \[\leadsto \]
  8. Simplified39.0

    \[\leadsto \]
  9. Simplified13.8

    \[\leadsto \]
  10. Using strategy rm
  11. Applied add-sqr-sqrt38.7

    \[\leadsto \]
  12. Applied times-frac34.0

    \[\leadsto \]
  13. Applied add-sqr-sqrt34.0

    \[\leadsto \]
  14. Applied unswap-sqr32.0

    \[\leadsto \]
  15. Simplified31.9

    \[\leadsto \]
  16. Simplified0.4

    \[\leadsto \]
  17. Using strategy rm
  18. Applied add-sqr-sqrt32.3

    \[\leadsto \]
  19. Applied add-cube-cbrt32.4

    \[\leadsto \]
  20. Applied times-frac32.4

    \[\leadsto \]
  21. Applied add-sqr-sqrt32.4

    \[\leadsto \]
  22. Applied add-cube-cbrt32.5

    \[\leadsto \]
  23. Applied times-frac32.5

    \[\leadsto \]
  24. Applied swap-sqr32.5

    \[\leadsto \]
  25. Simplified32.4

    \[\leadsto \]
  26. Simplified0.8

    \[\leadsto \]
  27. Final simplification0.8

    \[\leadsto \]

Reproduce

herbie shell --seed 2020191 
(FPCore (x y z t)
  :name "Graphics.Rasterific.Svg.PathConverter:arcToSegments from rasterific-svg-0.2.3.1"
  :precision binary64

  :herbie-target
  (+ (pow (/ x y) 2.0) (pow (/ z t) 2.0))

  (+ (/ (* x x) (* y y)) (/ (* z z) (* t t))))