Average Error: 5.9 → 5.9
Time: 4.6s
Precision: binary64
\[\]
↓
\[\]
↓
double code(double x, double y, double z, double t) {
	return ((double) (((double) (x * x)) - ((double) (((double) (y * 4.0)) * ((double) (((double) (z * z)) - t))))));
}

↓
double code(double x, double y, double z, double t) {
	return ((double) (((double) (x * x)) + ((double) (y * ((double) (4.0 * ((double) (t - ((double) (z * z))))))))));
}

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
Original5.9
Target5.8
Herbie5.9
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Derivation
  1. Initial program 5.9
    \[\]
  2. Simplified5.9
    \[\leadsto \]
  3. Final simplification5.9
    \[\leadsto \]
Reproduce
herbie shell --seed 2020192 
(FPCore (x y z t)
  :name "Graphics.Rasterific.Shading:$sradialGradientWithFocusShader from Rasterific-0.6.1, B"
  :precision binary64

  :herbie-target
  (- (* x x) (* 4.0 (* y (- (* z z) t))))

  (- (* x x) (* (* y 4.0) (- (* z z) t))))