Average Error: 7.7 → 0.2
Time: 3.4s
Precision: binary64
\[\]
↓
\[\]
↓
double code(double x, double y, double z) {
	return ((double) (((double) (x + y)) / ((double) (1.0 - ((double) (y / z))))));
}

↓
double code(double x, double y, double z) {
	double VAR;
	if (((((double) (((double) (x + y)) / ((double) (1.0 - ((double) (y / z)))))) <= -8.809062442317445e-299) || !(((double) (((double) (x + y)) / ((double) (1.0 - ((double) (y / z)))))) <= 0.0))) {
		VAR = ((double) (((double) (x + y)) / ((double) (1.0 - ((double) (y / z))))));
	} else {
		VAR = ((double) (1.0 / ((double) (((double) (1.0 / ((double) (x + y)))) - ((double) (y / ((double) (((double) (x + y)) * z))))))));
	}
	return VAR;
}

Error
Bits error versus x
Bits error versus y
Bits error versus z
Try it out
Your Program's Arguments
Results
Enter valid numbers for all inputs
Target
Original7.7
Target3.7
Herbie0.2
\[\]
Derivation
  1. Split input into 2 regimes
  2. if  (/ (+ x y) (- 1.0 (/ y z)))  < -8.8090624423174451e-299 or 0.0 <  (/ (+ x y) (- 1.0 (/ y z))) 
    1. Initial program 0.1
      \[\]
    if -8.8090624423174451e-299 <  (/ (+ x y) (- 1.0 (/ y z)))  < 0.0
    1. Initial program 59.6
      \[\]
    2. Using strategy rm
    3. Applied clear-num59.6
      \[\leadsto \]
    4. Using strategy rm
    5. Applied div-sub59.6
      \[\leadsto \]
    6. Simplified59.6
      \[\leadsto \]
    7. Simplified0.7
      \[\leadsto \]
  3. Recombined 2 regimes into one program.
  4. Final simplification0.2
    \[\leadsto \]
Reproduce
herbie shell --seed 2020191 
(FPCore (x y z)
  :name "Graphics.Rendering.Chart.Backend.Diagrams:calcFontMetrics from Chart-diagrams-1.5.1, A"
  :precision binary64

  :herbie-target
  (if (< y -3.7429310762689856e+171) (* (/ (+ y x) (neg y)) z) (if (< y 3.5534662456086734e+168) (/ (+ x y) (- 1.0 (/ y z))) (* (/ (+ y x) (neg y)) z)))

  (/ (+ x y) (- 1.0 (/ y z))))