
(FPCore (x y z t a b c i j k) :precision binary64 (- (- (+ (- (* (* (* (* x 18.0) y) z) t) (* (* a 4.0) t)) (* b c)) (* (* x 4.0) i)) (* (* 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) {
return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k);
}
real(8) function code(x, y, z, t, a, b, c, i, j, k)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8), intent (in) :: i
real(8), intent (in) :: j
real(8), intent (in) :: k
code = (((((((x * 18.0d0) * y) * z) * t) - ((a * 4.0d0) * t)) + (b * c)) - ((x * 4.0d0) * i)) - ((j * 27.0d0) * k)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k);
}
def code(x, y, z, t, a, b, c, i, j, k): return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k)
function code(x, y, z, t, a, b, c, i, j, k) return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * 18.0) * y) * z) * t) - Float64(Float64(a * 4.0) * t)) + Float64(b * c)) - Float64(Float64(x * 4.0) * i)) - Float64(Float64(j * 27.0) * k)) end
function tmp = code(x, y, z, t, a, b, c, i, j, k) tmp = (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k); end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_, k_] := N[(N[(N[(N[(N[(N[(N[(N[(x * 18.0), $MachinePrecision] * y), $MachinePrecision] * z), $MachinePrecision] * t), $MachinePrecision] - N[(N[(a * 4.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] + N[(b * c), $MachinePrecision]), $MachinePrecision] - N[(N[(x * 4.0), $MachinePrecision] * i), $MachinePrecision]), $MachinePrecision] - N[(N[(j * 27.0), $MachinePrecision] * k), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(\left(\left(x \cdot 18\right) \cdot y\right) \cdot z\right) \cdot t - \left(a \cdot 4\right) \cdot t\right) + b \cdot c\right) - \left(x \cdot 4\right) \cdot i\right) - \left(j \cdot 27\right) \cdot k
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 22 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t a b c i j k) :precision binary64 (- (- (+ (- (* (* (* (* x 18.0) y) z) t) (* (* a 4.0) t)) (* b c)) (* (* x 4.0) i)) (* (* 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) {
return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k);
}
real(8) function code(x, y, z, t, a, b, c, i, j, k)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8), intent (in) :: i
real(8), intent (in) :: j
real(8), intent (in) :: k
code = (((((((x * 18.0d0) * y) * z) * t) - ((a * 4.0d0) * t)) + (b * c)) - ((x * 4.0d0) * i)) - ((j * 27.0d0) * k)
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k);
}
def code(x, y, z, t, a, b, c, i, j, k): return (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k)
function code(x, y, z, t, a, b, c, i, j, k) return Float64(Float64(Float64(Float64(Float64(Float64(Float64(Float64(x * 18.0) * y) * z) * t) - Float64(Float64(a * 4.0) * t)) + Float64(b * c)) - Float64(Float64(x * 4.0) * i)) - Float64(Float64(j * 27.0) * k)) end
function tmp = code(x, y, z, t, a, b, c, i, j, k) tmp = (((((((x * 18.0) * y) * z) * t) - ((a * 4.0) * t)) + (b * c)) - ((x * 4.0) * i)) - ((j * 27.0) * k); end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_, k_] := N[(N[(N[(N[(N[(N[(N[(N[(x * 18.0), $MachinePrecision] * y), $MachinePrecision] * z), $MachinePrecision] * t), $MachinePrecision] - N[(N[(a * 4.0), $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision] + N[(b * c), $MachinePrecision]), $MachinePrecision] - N[(N[(x * 4.0), $MachinePrecision] * i), $MachinePrecision]), $MachinePrecision] - N[(N[(j * 27.0), $MachinePrecision] * k), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(\left(\left(x \cdot 18\right) \cdot y\right) \cdot z\right) \cdot t - \left(a \cdot 4\right) \cdot t\right) + b \cdot c\right) - \left(x \cdot 4\right) \cdot i\right) - \left(j \cdot 27\right) \cdot k
\end{array}
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c i j k)
:precision binary64
(if (<= z 1.1e+126)
(fma
(fma (* (* x 18.0) z) y (* a -4.0))
t
(fma c b (- (fma (* 4.0 i) x (* j (* 27.0 k))))))
(-
(fma
(* (* (* y x) 18.0) t)
z
(fma (* t a) -4.0 (fma c b (* (* i x) -4.0))))
(* (* j 27.0) k))))assert(x < y && y < z && z < t && t < a && a < b && b < c && c < i && i < j && j < k);
assert(x < y && y < z && z < t && t < a && a < b && b < c && c < i && i < j && j < k);
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
double tmp;
if (z <= 1.1e+126) {
tmp = fma(fma(((x * 18.0) * z), y, (a * -4.0)), t, fma(c, b, -fma((4.0 * i), x, (j * (27.0 * k)))));
} else {
tmp = fma((((y * x) * 18.0) * t), z, fma((t * a), -4.0, fma(c, b, ((i * x) * -4.0)))) - ((j * 27.0) * k);
}
return tmp;
}
x, y, z, t, a, b, c, i, j, k = sort([x, y, z, t, a, b, c, i, j, k]) x, y, z, t, a, b, c, i, j, k = sort([x, y, z, t, a, b, c, i, j, k]) function code(x, y, z, t, a, b, c, i, j, k) tmp = 0.0 if (z <= 1.1e+126) tmp = fma(fma(Float64(Float64(x * 18.0) * z), y, Float64(a * -4.0)), t, fma(c, b, Float64(-fma(Float64(4.0 * i), x, Float64(j * Float64(27.0 * k)))))); else tmp = Float64(fma(Float64(Float64(Float64(y * x) * 18.0) * t), z, fma(Float64(t * a), -4.0, fma(c, b, Float64(Float64(i * x) * -4.0)))) - Float64(Float64(j * 27.0) * k)); end return tmp end
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function. NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_, c_, i_, j_, k_] := If[LessEqual[z, 1.1e+126], N[(N[(N[(N[(x * 18.0), $MachinePrecision] * z), $MachinePrecision] * y + N[(a * -4.0), $MachinePrecision]), $MachinePrecision] * t + N[(c * b + (-N[(N[(4.0 * i), $MachinePrecision] * x + N[(j * N[(27.0 * k), $MachinePrecision]), $MachinePrecision]), $MachinePrecision])), $MachinePrecision]), $MachinePrecision], N[(N[(N[(N[(N[(y * x), $MachinePrecision] * 18.0), $MachinePrecision] * t), $MachinePrecision] * z + N[(N[(t * a), $MachinePrecision] * -4.0 + N[(c * b + N[(N[(i * x), $MachinePrecision] * -4.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(j * 27.0), $MachinePrecision] * k), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
[x, y, z, t, a, b, c, i, j, k] = \mathsf{sort}([x, y, z, t, a, b, c, i, j, k])\\\\
[x, y, z, t, a, b, c, i, j, k] = \mathsf{sort}([x, y, z, t, a, b, c, i, j, k])\\
\\
\begin{array}{l}
\mathbf{if}\;z \leq 1.1 \cdot 10^{+126}:\\
\;\;\;\;\mathsf{fma}\left(\mathsf{fma}\left(\left(x \cdot 18\right) \cdot z, y, a \cdot -4\right), t, \mathsf{fma}\left(c, b, -\mathsf{fma}\left(4 \cdot i, x, j \cdot \left(27 \cdot k\right)\right)\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(\left(\left(y \cdot x\right) \cdot 18\right) \cdot t, z, \mathsf{fma}\left(t \cdot a, -4, \mathsf{fma}\left(c, b, \left(i \cdot x\right) \cdot -4\right)\right)\right) - \left(j \cdot 27\right) \cdot k\\
\end{array}
\end{array}
if z < 1.09999999999999999e126Initial program 87.2%
lift--.f64N/A
lift--.f64N/A
associate--l-N/A
lift-+.f64N/A
associate--l+N/A
lift--.f64N/A
lift-*.f64N/A
lift-*.f64N/A
distribute-rgt-out--N/A
*-commutativeN/A
lower-fma.f64N/A
Applied rewrites94.4%
if 1.09999999999999999e126 < z Initial program 84.2%
lift--.f64N/A
lift-+.f64N/A
associate--l+N/A
lift--.f64N/A
sub-negN/A
associate-+l+N/A
lift-*.f64N/A
*-commutativeN/A
lift-*.f64N/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites93.8%
Final simplification94.2%
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
(FPCore (x y z t a b c i j k)
:precision binary64
(let* ((t_1
(fma
(* -27.0 j)
k
(fma (fma (* (* y x) z) 18.0 (* a -4.0)) t (* b c)))))
(if (<= t -6e-38)
t_1
(if (<= t 5.5e-55)
(-
(- (+ (* (* (* (* t x) z) y) 18.0) (* b c)) (* (* 4.0 x) i))
(* (* j 27.0) k))
t_1))))assert(x < y && y < z && z < t && t < a && a < b && b < c && c < i && i < j && j < k);
assert(x < y && y < z && z < t && t < a && a < b && b < c && c < i && i < j && j < k);
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
double t_1 = fma((-27.0 * j), k, fma(fma(((y * x) * z), 18.0, (a * -4.0)), t, (b * c)));
double tmp;
if (t <= -6e-38) {
tmp = t_1;
} else if (t <= 5.5e-55) {
tmp = ((((((t * x) * z) * y) * 18.0) + (b * c)) - ((4.0 * x) * i)) - ((j * 27.0) * k);
} else {
tmp = t_1;
}
return tmp;
}
x, y, z, t, a, b, c, i, j, k = sort([x, y, z, t, a, b, c, i, j, k]) x, y, z, t, a, b, c, i, j, k = sort([x, y, z, t, a, b, c, i, j, k]) function code(x, y, z, t, a, b, c, i, j, k) t_1 = fma(Float64(-27.0 * j), k, fma(fma(Float64(Float64(y * x) * z), 18.0, Float64(a * -4.0)), t, Float64(b * c))) tmp = 0.0 if (t <= -6e-38) tmp = t_1; elseif (t <= 5.5e-55) tmp = Float64(Float64(Float64(Float64(Float64(Float64(Float64(t * x) * z) * y) * 18.0) + Float64(b * c)) - Float64(Float64(4.0 * x) * i)) - Float64(Float64(j * 27.0) * k)); else tmp = t_1; end return tmp end
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
NOTE: x, y, z, t, a, b, c, i, j, and k should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_, c_, i_, j_, k_] := Block[{t$95$1 = N[(N[(-27.0 * j), $MachinePrecision] * k + N[(N[(N[(N[(y * x), $MachinePrecision] * z), $MachinePrecision] * 18.0 + N[(a * -4.0), $MachinePrecision]), $MachinePrecision] * t + N[(b * c), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t, -6e-38], t$95$1, If[LessEqual[t, 5.5e-55], N[(N[(N[(N[(N[(N[(N[(t * x), $MachinePrecision] * z), $MachinePrecision] * y), $MachinePrecision] * 18.0), $MachinePrecision] + N[(b * c), $MachinePrecision]), $MachinePrecision] - N[(N[(4.0 * x), $MachinePrecision] * i), $MachinePrecision]), $MachinePrecision] - N[(N[(j * 27.0), $MachinePrecision] * k), $MachinePrecision]), $MachinePrecision], t$95$1]]]
\begin{array}{l}
[x, y, z, t, a, b, c, i, j, k] = \mathsf{sort}([x, y, z, t, a, b, c, i, j, k])\\\\
[x, y, z, t, a, b, c, i, j, k] = \mathsf{sort}([x, y, z, t, a, b, c, i, j, k])\\
\\
\begin{array}{l}
t_1 := \mathsf{fma}\left(-27 \cdot j, k, \mathsf{fma}\left(\mathsf{fma}\left(\left(y \cdot x\right) \cdot z, 18, a \cdot -4\right), t, b \cdot c\right)\right)\\
\mathbf{if}\;t \leq -6 \cdot 10^{-38}:\\
\;\;\;\;t\_1\\
\mathbf{elif}\;t \leq 5.5 \cdot 10^{-55}:\\
\;\;\;\;\left(\left(\left(\left(\left(t \cdot x\right) \cdot z\right) \cdot y\right) \cdot 18 + b \cdot c\right) - \left(4 \cdot x\right) \cdot i\right) - \left(j \cdot 27\right) \cdot k\\
\mathbf{else}:\\
\;\;\;\;t\_1\\
\end{array}
\end{array}
if t < -5.99999999999999977e-38 or 5.4999999999999999e-55 < t Initial program 84.8%
Taylor expanded in i around 0
sub-negN/A
+-commutativeN/A
distribute-neg-inN/A
unsub-negN/A
distribute-lft-neg-inN/A
metadata-evalN/A
associate--l+N/A
+-commutativeN/A
associate--l+N/A
associate-*r*N/A
lower-fma.f64N/A
lower-*.f64N/A
Applied rewrites85.3%
if -5.99999999999999977e-38 < t < 5.4999999999999999e-55Initial program 85.3%
Taylor expanded in x around inf
associate-*r*N/A
*-commutativeN/A
associate-*r*N/A
associate-*r*N/A
associate-*l*N/A
*-commutativeN/A
*-commutativeN/A
associate-*r*N/A
lower-*.f64N/A
lower-*.f64N/A
associate-*r*N/A
lower-*.f64N/A
*-commutativeN/A
lower-*.f6488.8
Applied rewrites88.8%
Final simplification86.7%
(FPCore (x y z t a b c i j k)
:precision binary64
(let* ((t_1 (* (+ (* a t) (* i x)) 4.0))
(t_2
(-
(- (* (* 18.0 t) (* (* x y) z)) t_1)
(- (* (* k j) 27.0) (* c b)))))
(if (< t -1.6210815397541398e-69)
t_2
(if (< t 165.68027943805222)
(+ (- (* (* 18.0 y) (* x (* z t))) t_1) (- (* c b) (* 27.0 (* k j))))
t_2))))
double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
double t_1 = ((a * t) + (i * x)) * 4.0;
double t_2 = (((18.0 * t) * ((x * y) * z)) - t_1) - (((k * j) * 27.0) - (c * b));
double tmp;
if (t < -1.6210815397541398e-69) {
tmp = t_2;
} else if (t < 165.68027943805222) {
tmp = (((18.0 * y) * (x * (z * t))) - t_1) + ((c * b) - (27.0 * (k * j)));
} else {
tmp = t_2;
}
return tmp;
}
real(8) function code(x, y, z, t, a, b, c, i, j, k)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8), intent (in) :: t
real(8), intent (in) :: a
real(8), intent (in) :: b
real(8), intent (in) :: c
real(8), intent (in) :: i
real(8), intent (in) :: j
real(8), intent (in) :: k
real(8) :: t_1
real(8) :: t_2
real(8) :: tmp
t_1 = ((a * t) + (i * x)) * 4.0d0
t_2 = (((18.0d0 * t) * ((x * y) * z)) - t_1) - (((k * j) * 27.0d0) - (c * b))
if (t < (-1.6210815397541398d-69)) then
tmp = t_2
else if (t < 165.68027943805222d0) then
tmp = (((18.0d0 * y) * (x * (z * t))) - t_1) + ((c * b) - (27.0d0 * (k * j)))
else
tmp = t_2
end if
code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b, double c, double i, double j, double k) {
double t_1 = ((a * t) + (i * x)) * 4.0;
double t_2 = (((18.0 * t) * ((x * y) * z)) - t_1) - (((k * j) * 27.0) - (c * b));
double tmp;
if (t < -1.6210815397541398e-69) {
tmp = t_2;
} else if (t < 165.68027943805222) {
tmp = (((18.0 * y) * (x * (z * t))) - t_1) + ((c * b) - (27.0 * (k * j)));
} else {
tmp = t_2;
}
return tmp;
}
def code(x, y, z, t, a, b, c, i, j, k): t_1 = ((a * t) + (i * x)) * 4.0 t_2 = (((18.0 * t) * ((x * y) * z)) - t_1) - (((k * j) * 27.0) - (c * b)) tmp = 0 if t < -1.6210815397541398e-69: tmp = t_2 elif t < 165.68027943805222: tmp = (((18.0 * y) * (x * (z * t))) - t_1) + ((c * b) - (27.0 * (k * j))) else: tmp = t_2 return tmp
function code(x, y, z, t, a, b, c, i, j, k) t_1 = Float64(Float64(Float64(a * t) + Float64(i * x)) * 4.0) t_2 = Float64(Float64(Float64(Float64(18.0 * t) * Float64(Float64(x * y) * z)) - t_1) - Float64(Float64(Float64(k * j) * 27.0) - Float64(c * b))) tmp = 0.0 if (t < -1.6210815397541398e-69) tmp = t_2; elseif (t < 165.68027943805222) tmp = Float64(Float64(Float64(Float64(18.0 * y) * Float64(x * Float64(z * t))) - t_1) + Float64(Float64(c * b) - Float64(27.0 * Float64(k * j)))); else tmp = t_2; end return tmp end
function tmp_2 = code(x, y, z, t, a, b, c, i, j, k) t_1 = ((a * t) + (i * x)) * 4.0; t_2 = (((18.0 * t) * ((x * y) * z)) - t_1) - (((k * j) * 27.0) - (c * b)); tmp = 0.0; if (t < -1.6210815397541398e-69) tmp = t_2; elseif (t < 165.68027943805222) tmp = (((18.0 * y) * (x * (z * t))) - t_1) + ((c * b) - (27.0 * (k * j))); else tmp = t_2; end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_, b_, c_, i_, j_, k_] := Block[{t$95$1 = N[(N[(N[(a * t), $MachinePrecision] + N[(i * x), $MachinePrecision]), $MachinePrecision] * 4.0), $MachinePrecision]}, Block[{t$95$2 = N[(N[(N[(N[(18.0 * t), $MachinePrecision] * N[(N[(x * y), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision] - t$95$1), $MachinePrecision] - N[(N[(N[(k * j), $MachinePrecision] * 27.0), $MachinePrecision] - N[(c * b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]}, If[Less[t, -1.6210815397541398e-69], t$95$2, If[Less[t, 165.68027943805222], N[(N[(N[(N[(18.0 * y), $MachinePrecision] * N[(x * N[(z * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - t$95$1), $MachinePrecision] + N[(N[(c * b), $MachinePrecision] - N[(27.0 * N[(k * j), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], t$95$2]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \left(a \cdot t + i \cdot x\right) \cdot 4\\
t_2 := \left(\left(18 \cdot t\right) \cdot \left(\left(x \cdot y\right) \cdot z\right) - t\_1\right) - \left(\left(k \cdot j\right) \cdot 27 - c \cdot b\right)\\
\mathbf{if}\;t < -1.6210815397541398 \cdot 10^{-69}:\\
\;\;\;\;t\_2\\
\mathbf{elif}\;t < 165.68027943805222:\\
\;\;\;\;\left(\left(18 \cdot y\right) \cdot \left(x \cdot \left(z \cdot t\right)\right) - t\_1\right) + \left(c \cdot b - 27 \cdot \left(k \cdot j\right)\right)\\
\mathbf{else}:\\
\;\;\;\;t\_2\\
\end{array}
\end{array}
herbie shell --seed 2024230
(FPCore (x y z t a b c i j k)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, E"
:precision binary64
:alt
(! :herbie-platform default (if (< t -8105407698770699/5000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (- (* (* 18 t) (* (* x y) z)) (* (+ (* a t) (* i x)) 4)) (- (* (* k j) 27) (* c b))) (if (< t 8284013971902611/50000000000000) (+ (- (* (* 18 y) (* x (* z t))) (* (+ (* a t) (* i x)) 4)) (- (* c b) (* 27 (* k j)))) (- (- (* (* 18 t) (* (* x y) z)) (* (+ (* a t) (* i x)) 4)) (- (* (* k j) 27) (* c b))))))
(- (- (+ (- (* (* (* (* x 18.0) y) z) t) (* (* a 4.0) t)) (* b c)) (* (* x 4.0) i)) (* (* j 27.0) k)))