Average Error: 5.4 → 1.7
Time: 9.6s
Precision: binary64
\[\]
\[\]
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
	return ((double) (((double) (((double) (((double) (((double) (((double) (((double) (((double) (x * 18.0)) * y)) * z)) * t)) - ((double) (((double) (a * 4.0)) * t)))) + ((double) (b * c)))) - ((double) (((double) (x * 4.0)) * i)))) - ((double) (((double) (j * 27.0)) * k))));
}
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
	double VAR;
	if ((x <= -4.4242541700157047e+27)) {
		VAR = ((double) (((double) (((double) (x * 18.0)) * ((double) (y * ((double) (z * t)))))) + ((double) (((double) (b * c)) - ((double) (((double) (j * ((double) (27.0 * k)))) + ((double) (4.0 * ((double) (((double) (t * a)) + ((double) (x * i))))))))))));
	} else {
		double VAR_1;
		if ((x <= 17134625860780.592)) {
			VAR_1 = ((double) (((double) (((double) (((double) (b * c)) + ((double) (((double) (t * ((double) (z * ((double) (x * ((double) (18.0 * y)))))))) - ((double) (t * ((double) (4.0 * a)))))))) - ((double) (i * ((double) (x * 4.0)))))) - ((double) (k * ((double) (j * 27.0))))));
		} else {
			VAR_1 = ((double) (((double) (((double) (b * c)) - ((double) (((double) (j * ((double) (27.0 * k)))) + ((double) (4.0 * ((double) (((double) (t * a)) + ((double) (x * i)))))))))) + ((double) (x * ((double) (18.0 * ((double) (y * ((double) (z * t))))))))));
		}
		VAR = VAR_1;
	}
	return VAR;
}

Error

Bits error versus x

Bits error versus y

Bits error versus z

Bits error versus t

Bits error versus a

Bits error versus b

Bits error versus c

Bits error versus i

Bits error versus j

Bits error versus k

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Target

Original5.4
Target1.5
Herbie1.7
\[\]

Derivation

  1. Split input into 3 regimes
  2. if x < -4.42425417001570471e27

    1. Initial program 13.8

      \[\]
    2. Simplified1.9

      \[\leadsto \]
    3. Using strategy rm
    4. Applied associate-*r*2.0

      \[\leadsto \]

    if -4.42425417001570471e27 < x < 17134625860780.5918

    1. Initial program 1.6

      \[\]
    2. Using strategy rm
    3. Applied *-un-lft-identity1.6

      \[\leadsto \]
    4. Applied associate-*r*1.6

      \[\leadsto \]
    5. Simplified1.7

      \[\leadsto \]

    if 17134625860780.5918 < x

    1. Initial program 12.0

      \[\]
    2. Simplified1.4

      \[\leadsto \]
  3. Recombined 3 regimes into one program.
  4. Final simplification1.7

    \[\leadsto \]

Reproduce

herbie shell --seed 2020192 
(FPCore (x y z t a b c i j k)
  :name "Diagrams.Solve.Polynomial:cubForm  from diagrams-solve-0.1, E"
  :precision binary64

  :herbie-target
  (if (< t -1.6210815397541398e-69) (- (- (* (* 18.0 t) (* (* x y) z)) (* (+ (* a t) (* i x)) 4.0)) (- (* (* k j) 27.0) (* c b))) (if (< t 165.68027943805222) (+ (- (* (* 18.0 y) (* x (* z t))) (* (+ (* a t) (* i x)) 4.0)) (- (* c b) (* 27.0 (* k j)))) (- (- (* (* 18.0 t) (* (* x y) z)) (* (+ (* a t) (* i x)) 4.0)) (- (* (* k j) 27.0) (* c b)))))

  (- (- (+ (- (* (* (* (* x 18.0) y) z) t) (* (* a 4.0) t)) (* b c)) (* (* x 4.0) i)) (* (* j 27.0) k)))