| Alternative 1 | |
|---|---|
| Error | 7.2 |
| Cost | 14664 |
(FPCore (x y z t a b c)
:precision binary64
(/
x
(+
x
(*
y
(exp
(*
2.0
(-
(/ (* z (sqrt (+ t a))) t)
(* (- b c) (- (+ a (/ 5.0 6.0)) (/ 2.0 (* t 3.0)))))))))))(FPCore (x y z t a b c)
:precision binary64
(let* ((t_1
(-
(/ (* z (sqrt (+ t a))) t)
(* (- b c) (- (+ a 0.8333333333333334) (/ 2.0 (* t 3.0)))))))
(if (<= t_1 INFINITY)
(/ x (+ x (* y (exp (* 2.0 t_1)))))
(/
x
(+
x
(+
(* 2.0 (/ (* (- (* (sqrt a) z) (* -0.6666666666666666 (- b c))) y) t))
y))))))double code(double x, double y, double z, double t, double a, double b, double c) {
return x / (x + (y * exp((2.0 * (((z * sqrt((t + a))) / t) - ((b - c) * ((a + (5.0 / 6.0)) - (2.0 / (t * 3.0)))))))));
}
double code(double x, double y, double z, double t, double a, double b, double c) {
double t_1 = ((z * sqrt((t + a))) / t) - ((b - c) * ((a + 0.8333333333333334) - (2.0 / (t * 3.0))));
double tmp;
if (t_1 <= ((double) INFINITY)) {
tmp = x / (x + (y * exp((2.0 * t_1))));
} else {
tmp = x / (x + ((2.0 * ((((sqrt(a) * z) - (-0.6666666666666666 * (b - c))) * y) / t)) + y));
}
return tmp;
}
public static double code(double x, double y, double z, double t, double a, double b, double c) {
return x / (x + (y * Math.exp((2.0 * (((z * Math.sqrt((t + a))) / t) - ((b - c) * ((a + (5.0 / 6.0)) - (2.0 / (t * 3.0)))))))));
}
public static double code(double x, double y, double z, double t, double a, double b, double c) {
double t_1 = ((z * Math.sqrt((t + a))) / t) - ((b - c) * ((a + 0.8333333333333334) - (2.0 / (t * 3.0))));
double tmp;
if (t_1 <= Double.POSITIVE_INFINITY) {
tmp = x / (x + (y * Math.exp((2.0 * t_1))));
} else {
tmp = x / (x + ((2.0 * ((((Math.sqrt(a) * z) - (-0.6666666666666666 * (b - c))) * y) / t)) + y));
}
return tmp;
}
def code(x, y, z, t, a, b, c): return x / (x + (y * math.exp((2.0 * (((z * math.sqrt((t + a))) / t) - ((b - c) * ((a + (5.0 / 6.0)) - (2.0 / (t * 3.0)))))))))
def code(x, y, z, t, a, b, c): t_1 = ((z * math.sqrt((t + a))) / t) - ((b - c) * ((a + 0.8333333333333334) - (2.0 / (t * 3.0)))) tmp = 0 if t_1 <= math.inf: tmp = x / (x + (y * math.exp((2.0 * t_1)))) else: tmp = x / (x + ((2.0 * ((((math.sqrt(a) * z) - (-0.6666666666666666 * (b - c))) * y) / t)) + y)) return tmp
function code(x, y, z, t, a, b, c) return Float64(x / Float64(x + Float64(y * exp(Float64(2.0 * Float64(Float64(Float64(z * sqrt(Float64(t + a))) / t) - Float64(Float64(b - c) * Float64(Float64(a + Float64(5.0 / 6.0)) - Float64(2.0 / Float64(t * 3.0)))))))))) end
function code(x, y, z, t, a, b, c) t_1 = Float64(Float64(Float64(z * sqrt(Float64(t + a))) / t) - Float64(Float64(b - c) * Float64(Float64(a + 0.8333333333333334) - Float64(2.0 / Float64(t * 3.0))))) tmp = 0.0 if (t_1 <= Inf) tmp = Float64(x / Float64(x + Float64(y * exp(Float64(2.0 * t_1))))); else tmp = Float64(x / Float64(x + Float64(Float64(2.0 * Float64(Float64(Float64(Float64(sqrt(a) * z) - Float64(-0.6666666666666666 * Float64(b - c))) * y) / t)) + y))); end return tmp end
function tmp = code(x, y, z, t, a, b, c) tmp = x / (x + (y * exp((2.0 * (((z * sqrt((t + a))) / t) - ((b - c) * ((a + (5.0 / 6.0)) - (2.0 / (t * 3.0))))))))); end
function tmp_2 = code(x, y, z, t, a, b, c) t_1 = ((z * sqrt((t + a))) / t) - ((b - c) * ((a + 0.8333333333333334) - (2.0 / (t * 3.0)))); tmp = 0.0; if (t_1 <= Inf) tmp = x / (x + (y * exp((2.0 * t_1)))); else tmp = x / (x + ((2.0 * ((((sqrt(a) * z) - (-0.6666666666666666 * (b - c))) * y) / t)) + y)); end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_, b_, c_] := N[(x / N[(x + N[(y * N[Exp[N[(2.0 * N[(N[(N[(z * N[Sqrt[N[(t + a), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] - N[(N[(b - c), $MachinePrecision] * N[(N[(a + N[(5.0 / 6.0), $MachinePrecision]), $MachinePrecision] - N[(2.0 / N[(t * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
code[x_, y_, z_, t_, a_, b_, c_] := Block[{t$95$1 = N[(N[(N[(z * N[Sqrt[N[(t + a), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision] - N[(N[(b - c), $MachinePrecision] * N[(N[(a + 0.8333333333333334), $MachinePrecision] - N[(2.0 / N[(t * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, Infinity], N[(x / N[(x + N[(y * N[Exp[N[(2.0 * t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(x / N[(x + N[(N[(2.0 * N[(N[(N[(N[(N[Sqrt[a], $MachinePrecision] * z), $MachinePrecision] - N[(-0.6666666666666666 * N[(b - c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * y), $MachinePrecision] / t), $MachinePrecision]), $MachinePrecision] + y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)}}
\begin{array}{l}
t_1 := \frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + 0.8333333333333334\right) - \frac{2}{t \cdot 3}\right)\\
\mathbf{if}\;t_1 \leq \infty:\\
\;\;\;\;\frac{x}{x + y \cdot e^{2 \cdot t_1}}\\
\mathbf{else}:\\
\;\;\;\;\frac{x}{x + \left(2 \cdot \frac{\left(\sqrt{a} \cdot z - -0.6666666666666666 \cdot \left(b - c\right)\right) \cdot y}{t} + y\right)}\\
\end{array}
Results
| Original | 3.9 |
|---|---|
| Target | 3.0 |
| Herbie | 2.6 |
if (-.f64 (/.f64 (*.f64 z (sqrt.f64 (+.f64 t a))) t) (*.f64 (-.f64 b c) (-.f64 (+.f64 a (/.f64 5 6)) (/.f64 2 (*.f64 t 3))))) < +inf.0Initial program 0.7
Simplified0.7
[Start]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)}}
\] |
|---|---|
rational_best_oopsla_all_46_json_45_simplify-89 [=>]0.7 | \[ \frac{x}{x + y \cdot e^{\color{blue}{2 \cdot \left(\left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \frac{2}{2}\right)}}}
\] |
rational_best_oopsla_all_46_json_45_simplify-74 [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \color{blue}{\left(\frac{2}{2} \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}}
\] |
rational_best_oopsla_all_46_json_45_simplify-13 [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \color{blue}{\left(\frac{z \cdot \sqrt{t + a}}{t} \cdot \frac{2}{2} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}}
\] |
metadata-eval [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} \cdot \color{blue}{1} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-52 [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\color{blue}{\frac{z \cdot \sqrt{t + a}}{t}} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-74 [<=]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \color{blue}{\left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \frac{2}{2}}\right)}}
\] |
metadata-eval [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \color{blue}{1}\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-52 [=>]0.7 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \color{blue}{\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)}\right)}}
\] |
if +inf.0 < (-.f64 (/.f64 (*.f64 z (sqrt.f64 (+.f64 t a))) t) (*.f64 (-.f64 b c) (-.f64 (+.f64 a (/.f64 5 6)) (/.f64 2 (*.f64 t 3))))) Initial program 64.0
Simplified64.0
[Start]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)}}
\] |
|---|---|
rational_best_oopsla_all_46_json_45_simplify-89 [=>]64.0 | \[ \frac{x}{x + y \cdot e^{\color{blue}{2 \cdot \left(\left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \frac{2}{2}\right)}}}
\] |
rational_best_oopsla_all_46_json_45_simplify-74 [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \color{blue}{\left(\frac{2}{2} \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}}
\] |
rational_best_oopsla_all_46_json_45_simplify-13 [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \color{blue}{\left(\frac{z \cdot \sqrt{t + a}}{t} \cdot \frac{2}{2} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}}
\] |
metadata-eval [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} \cdot \color{blue}{1} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-52 [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\color{blue}{\frac{z \cdot \sqrt{t + a}}{t}} - \frac{2}{2} \cdot \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right)\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-74 [<=]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \color{blue}{\left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \frac{2}{2}}\right)}}
\] |
metadata-eval [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \left(\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)\right) \cdot \color{blue}{1}\right)}}
\] |
rational_best_oopsla_all_46_json_45_simplify-52 [=>]64.0 | \[ \frac{x}{x + y \cdot e^{2 \cdot \left(\frac{z \cdot \sqrt{t + a}}{t} - \color{blue}{\left(b - c\right) \cdot \left(\left(a + \frac{5}{6}\right) - \frac{2}{t \cdot 3}\right)}\right)}}
\] |
Taylor expanded in t around 0 20.1
Taylor expanded in t around inf 38.2
Final simplification2.6
| Alternative 1 | |
|---|---|
| Error | 7.2 |
| Cost | 14664 |
| Alternative 2 | |
|---|---|
| Error | 9.4 |
| Cost | 14148 |
| Alternative 3 | |
|---|---|
| Error | 10.9 |
| Cost | 13896 |
| Alternative 4 | |
|---|---|
| Error | 34.2 |
| Cost | 8428 |
| Alternative 5 | |
|---|---|
| Error | 26.6 |
| Cost | 8428 |
| Alternative 6 | |
|---|---|
| Error | 28.0 |
| Cost | 8424 |
| Alternative 7 | |
|---|---|
| Error | 31.1 |
| Cost | 8296 |
| Alternative 8 | |
|---|---|
| Error | 29.6 |
| Cost | 8292 |
| Alternative 9 | |
|---|---|
| Error | 17.6 |
| Cost | 8024 |
| Alternative 10 | |
|---|---|
| Error | 29.7 |
| Cost | 7768 |
| Alternative 11 | |
|---|---|
| Error | 18.0 |
| Cost | 7632 |
| Alternative 12 | |
|---|---|
| Error | 15.1 |
| Cost | 7628 |
| Alternative 13 | |
|---|---|
| Error | 11.3 |
| Cost | 7556 |
| Alternative 14 | |
|---|---|
| Error | 32.3 |
| Cost | 2268 |
| Alternative 15 | |
|---|---|
| Error | 31.8 |
| Cost | 1884 |
| Alternative 16 | |
|---|---|
| Error | 31.7 |
| Cost | 1884 |
| Alternative 17 | |
|---|---|
| Error | 31.2 |
| Cost | 1628 |
| Alternative 18 | |
|---|---|
| Error | 31.8 |
| Cost | 1628 |
| Alternative 19 | |
|---|---|
| Error | 30.4 |
| Cost | 1364 |
| Alternative 20 | |
|---|---|
| Error | 31.7 |
| Cost | 1100 |
| Alternative 21 | |
|---|---|
| Error | 29.8 |
| Cost | 1100 |
| Alternative 22 | |
|---|---|
| Error | 32.0 |
| Cost | 972 |
| Alternative 23 | |
|---|---|
| Error | 29.9 |
| Cost | 708 |
| Alternative 24 | |
|---|---|
| Error | 31.8 |
| Cost | 584 |
| Alternative 25 | |
|---|---|
| Error | 32.7 |
| Cost | 456 |
| Alternative 26 | |
|---|---|
| Error | 30.6 |
| Cost | 64 |
herbie shell --seed 2023090
(FPCore (x y z t a b c)
:name "Numeric.SpecFunctions:invIncompleteBetaWorker from math-functions-0.1.5.2, I"
:precision binary64
:herbie-target
(if (< t -2.118326644891581e-50) (/ x (+ x (* y (exp (* 2.0 (- (+ (* a c) (* 0.8333333333333334 c)) (* a b))))))) (if (< t 5.196588770651547e-123) (/ x (+ x (* y (exp (* 2.0 (/ (- (* (* z (sqrt (+ t a))) (* (* 3.0 t) (- a (/ 5.0 6.0)))) (* (- (* (+ (/ 5.0 6.0) a) (* 3.0 t)) 2.0) (* (- a (/ 5.0 6.0)) (* (- b c) t)))) (* (* (* t t) 3.0) (- a (/ 5.0 6.0))))))))) (/ x (+ x (* y (exp (* 2.0 (- (/ (* z (sqrt (+ t a))) t) (* (- b c) (- (+ a (/ 5.0 6.0)) (/ 2.0 (* t 3.0))))))))))))
(/ x (+ x (* y (exp (* 2.0 (- (/ (* z (sqrt (+ t a))) t) (* (- b c) (- (+ a (/ 5.0 6.0)) (/ 2.0 (* t 3.0)))))))))))