Average Error: 7.5 → 1.2
Time: 6.6s
Precision: binary64
\[\]
↓
\[\]
↓
double code(double x, double y, double z, double t, double a) {
	return ((double) (((double) (((double) (x * y)) - ((double) (((double) (z * 9.0)) * t)))) / ((double) (a * 2.0))));
}

↓
double code(double x, double y, double z, double t, double a) {
	double VAR;
	if (((((double) (((double) (x * y)) - ((double) (((double) (z * 9.0)) * t)))) <= -8.078375618961065e+238) || !(((double) (((double) (x * y)) - ((double) (((double) (z * 9.0)) * t)))) <= 5.092587275445933e+178))) {
		VAR = ((double) (((double) (y * ((double) (x / ((double) (a * 2.0)))))) - ((double) (((double) (9.0 * t)) * ((double) (z / ((double) (a * 2.0))))))));
	} else {
		VAR = ((double) (((double) (((double) (x * y)) - ((double) (((double) (z * 9.0)) * t)))) / ((double) (a * 2.0))));
	}
	return VAR;
}

Error
Bits error versus x
Bits error versus y
Bits error versus z
Bits error versus t
Bits error versus a
Try it out
Your Program's Arguments
Results
Enter valid numbers for all inputs
Target
Original7.5
Target5.4
Herbie1.2
\[\]
Derivation
  1. Split input into 2 regimes
  2. if  (- (* x y) (* (* z 9.0) t))  < -8.0783756189610653e238 or 5.0925872754459327e178 <  (- (* x y) (* (* z 9.0) t)) 
    1. Initial program 28.9
      \[\]
    2. Simplified29.0
      \[\leadsto \]
    3. Using strategy rm
    4. Applied div-sub29.0
      \[\leadsto \]
    5. Simplified17.1
      \[\leadsto \]
    6. Simplified1.9
      \[\leadsto \]
    if -8.0783756189610653e238 <  (- (* x y) (* (* z 9.0) t))  < 5.0925872754459327e178
    1. Initial program 0.9
      \[\]
  3. Recombined 2 regimes into one program.
  4. Final simplification1.2
    \[\leadsto \]
Reproduce
herbie shell --seed 2020181 
(FPCore (x y z t a)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, I"
  :precision binary64

  :herbie-target
  (if (< a -2.090464557976709e+86) (- (* 0.5 (/ (* y x) a)) (* 4.5 (/ t (/ a z)))) (if (< a 2.144030707833976e+99) (/ (- (* x y) (* z (* 9.0 t))) (* a 2.0)) (- (* (/ y a) (* x 0.5)) (* (/ t a) (* z 4.5)))))

  (/ (- (* x y) (* (* z 9.0) t)) (* a 2.0)))