Average Error: 7.5 → 3.3
Time: 3.8s
Precision: binary64
\[\]
↓
\[\]
↓
double code(double x, double y, double z, double t) {
	return ((double) (((double) (((double) (x * y)) - ((double) (z * y)))) * t));
}

↓
double code(double x, double y, double z, double t) {
	double VAR;
	if (((t <= -1.1067936186022065e+129) || !(t <= 1.3231564757824707e-45))) {
		VAR = ((double) (t * ((double) (((double) (x * y)) - ((double) (y * z))))));
	} else {
		VAR = ((double) (y * ((double) (t * ((double) (x - z))))));
	}
	return VAR;
}

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
Original7.5
Target3.0
Herbie3.3
\[\]
Derivation
  1. Split input into 2 regimes
  2. if  t  < -1.10679361860220652e129 or 1.3231564757824707e-45 <  t 
    1. Initial program 3.5
      \[\]
    if -1.10679361860220652e129 <  t  < 1.3231564757824707e-45
    1. Initial program 9.4
      \[\]
    2. Simplified3.2
      \[\leadsto \]
  3. Recombined 2 regimes into one program.
  4. Final simplification3.3
    \[\leadsto \]
Reproduce
herbie shell --seed 2020190 
(FPCore (x y z t)
  :name "Linear.Projection:inverseInfinitePerspective from linear-1.19.1.3"
  :precision binary64

  :herbie-target
  (if (< t -9.231879582886777e-80) (* (* y t) (- x z)) (if (< t 2.543067051564877e+83) (* y (* t (- x z))) (* (* y (- x z)) t)))

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