
(FPCore (x y z t a b) :precision binary64 (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
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
code = ((2.0d0 * sqrt(x)) * cos((y - ((z * t) / 3.0d0)))) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * Math.sqrt(x)) * Math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b): return ((2.0 * math.sqrt(x)) * math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0))
function code(x, y, z, t, a, b) return Float64(Float64(Float64(2.0 * sqrt(x)) * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) - Float64(a / Float64(b * 3.0))) end
function tmp = code(x, y, z, t, a, b) tmp = ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0)); end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 12 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z t a b) :precision binary64 (- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))
double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
real(8) function code(x, y, z, t, a, b)
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
code = ((2.0d0 * sqrt(x)) * cos((y - ((z * t) / 3.0d0)))) - (a / (b * 3.0d0))
end function
public static double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * Math.sqrt(x)) * Math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0));
}
def code(x, y, z, t, a, b): return ((2.0 * math.sqrt(x)) * math.cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0))
function code(x, y, z, t, a, b) return Float64(Float64(Float64(2.0 * sqrt(x)) * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) - Float64(a / Float64(b * 3.0))) end
function tmp = code(x, y, z, t, a, b) tmp = ((2.0 * sqrt(x)) * cos((y - ((z * t) / 3.0)))) - (a / (b * 3.0)); end
code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - \frac{a}{b \cdot 3}
\end{array}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
:precision binary64
(let* ((t_1 (* 2.0 (sqrt x))))
(if (<= (* t_1 (cos (- y (/ (* z t) 3.0)))) 5e+22)
(-
(*
t_1
(fma
(sin (* (* 0.3333333333333333 z) t))
(sin y)
(* (cos (* (* t z) -0.3333333333333333)) (cos y))))
(/ (/ a b) 3.0))
(- (* t_1 (cos y)) (/ a (* b 3.0))))))assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
double t_1 = 2.0 * sqrt(x);
double tmp;
if ((t_1 * cos((y - ((z * t) / 3.0)))) <= 5e+22) {
tmp = (t_1 * fma(sin(((0.3333333333333333 * z) * t)), sin(y), (cos(((t * z) * -0.3333333333333333)) * cos(y)))) - ((a / b) / 3.0);
} else {
tmp = (t_1 * cos(y)) - (a / (b * 3.0));
}
return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) t_1 = Float64(2.0 * sqrt(x)) tmp = 0.0 if (Float64(t_1 * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) <= 5e+22) tmp = Float64(Float64(t_1 * fma(sin(Float64(Float64(0.3333333333333333 * z) * t)), sin(y), Float64(cos(Float64(Float64(t * z) * -0.3333333333333333)) * cos(y)))) - Float64(Float64(a / b) / 3.0)); else tmp = Float64(Float64(t_1 * cos(y)) - Float64(a / Float64(b * 3.0))); end return tmp end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(t$95$1 * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 5e+22], N[(N[(t$95$1 * N[(N[Sin[N[(N[(0.3333333333333333 * z), $MachinePrecision] * t), $MachinePrecision]], $MachinePrecision] * N[Sin[y], $MachinePrecision] + N[(N[Cos[N[(N[(t * z), $MachinePrecision] * -0.3333333333333333), $MachinePrecision]], $MachinePrecision] * N[Cos[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - N[(N[(a / b), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision], N[(N[(t$95$1 * N[Cos[y], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;t\_1 \cdot \cos \left(y - \frac{z \cdot t}{3}\right) \leq 5 \cdot 10^{+22}:\\
\;\;\;\;t\_1 \cdot \mathsf{fma}\left(\sin \left(\left(0.3333333333333333 \cdot z\right) \cdot t\right), \sin y, \cos \left(\left(t \cdot z\right) \cdot -0.3333333333333333\right) \cdot \cos y\right) - \frac{\frac{a}{b}}{3}\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \cos y - \frac{a}{b \cdot 3}\\
\end{array}
\end{array}
if (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) < 4.9999999999999996e22Initial program 81.3%
lift-/.f64N/A
lift-*.f64N/A
associate-/r*N/A
lower-/.f64N/A
lower-/.f6481.3
Applied rewrites81.3%
Applied rewrites83.3%
if 4.9999999999999996e22 < (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) Initial program 50.1%
Taylor expanded in z around 0
lower-cos.f6469.9
Applied rewrites69.9%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
:precision binary64
(let* ((t_1 (/ a (* b 3.0))) (t_2 (* 2.0 (sqrt x))))
(if (<= (- (* t_2 (cos (- y (/ (* z t) 3.0)))) t_1) 1.5e+21)
(-
(*
t_2
(fma
(cos (* -0.3333333333333333 (* t z)))
(cos y)
(* (sin (* 0.3333333333333333 (* t z))) (sin y))))
t_1)
(- (* t_2 (cos y)) (/ (/ a 3.0) b)))))assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
double t_1 = a / (b * 3.0);
double t_2 = 2.0 * sqrt(x);
double tmp;
if (((t_2 * cos((y - ((z * t) / 3.0)))) - t_1) <= 1.5e+21) {
tmp = (t_2 * fma(cos((-0.3333333333333333 * (t * z))), cos(y), (sin((0.3333333333333333 * (t * z))) * sin(y)))) - t_1;
} else {
tmp = (t_2 * cos(y)) - ((a / 3.0) / b);
}
return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) t_1 = Float64(a / Float64(b * 3.0)) t_2 = Float64(2.0 * sqrt(x)) tmp = 0.0 if (Float64(Float64(t_2 * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) - t_1) <= 1.5e+21) tmp = Float64(Float64(t_2 * fma(cos(Float64(-0.3333333333333333 * Float64(t * z))), cos(y), Float64(sin(Float64(0.3333333333333333 * Float64(t * z))) * sin(y)))) - t_1); else tmp = Float64(Float64(t_2 * cos(y)) - Float64(Float64(a / 3.0) / b)); end return tmp end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]}, Block[{t$95$2 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(N[(t$95$2 * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$1), $MachinePrecision], 1.5e+21], N[(N[(t$95$2 * N[(N[Cos[N[(-0.3333333333333333 * N[(t * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(N[Sin[N[(0.3333333333333333 * N[(t * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] * N[Sin[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - t$95$1), $MachinePrecision], N[(N[(t$95$2 * N[Cos[y], $MachinePrecision]), $MachinePrecision] - N[(N[(a / 3.0), $MachinePrecision] / b), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := \frac{a}{b \cdot 3}\\
t_2 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;t\_2 \cdot \cos \left(y - \frac{z \cdot t}{3}\right) - t\_1 \leq 1.5 \cdot 10^{+21}:\\
\;\;\;\;t\_2 \cdot \mathsf{fma}\left(\cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right), \cos y, \sin \left(0.3333333333333333 \cdot \left(t \cdot z\right)\right) \cdot \sin y\right) - t\_1\\
\mathbf{else}:\\
\;\;\;\;t\_2 \cdot \cos y - \frac{\frac{a}{3}}{b}\\
\end{array}
\end{array}
if (-.f64 (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) (/.f64 a (*.f64 b #s(literal 3 binary64)))) < 1.5e21Initial program 79.5%
lift-cos.f64N/A
lift--.f64N/A
cos-diffN/A
*-commutativeN/A
lower-fma.f64N/A
cos-negN/A
lower-cos.f64N/A
lift-/.f64N/A
clear-numN/A
associate-/r/N/A
distribute-lft-neg-inN/A
metadata-evalN/A
metadata-evalN/A
metadata-evalN/A
metadata-evalN/A
lower-*.f64N/A
metadata-evalN/A
metadata-evalN/A
lift-*.f64N/A
*-commutativeN/A
lower-*.f64N/A
lower-cos.f64N/A
Applied rewrites81.5%
if 1.5e21 < (-.f64 (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) (/.f64 a (*.f64 b #s(literal 3 binary64)))) Initial program 57.7%
Taylor expanded in z around 0
lower-cos.f6474.1
Applied rewrites74.1%
lift-/.f64N/A
lift-*.f64N/A
*-commutativeN/A
associate-/r*N/A
lower-/.f64N/A
lower-/.f6474.1
Applied rewrites74.1%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
:precision binary64
(let* ((t_1 (* 2.0 (sqrt x))))
(if (<= (* t_1 (cos (- y (/ (* z t) 3.0)))) 1.72e+19)
(fma
(* (sqrt x) 2.0)
(fma
(cos (* -0.3333333333333333 (* t z)))
(cos y)
(* (sin (* (* t z) 0.3333333333333333)) (sin y)))
(* -0.3333333333333333 (/ a b)))
(- (* t_1 (cos y)) (/ a (* b 3.0))))))assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
double t_1 = 2.0 * sqrt(x);
double tmp;
if ((t_1 * cos((y - ((z * t) / 3.0)))) <= 1.72e+19) {
tmp = fma((sqrt(x) * 2.0), fma(cos((-0.3333333333333333 * (t * z))), cos(y), (sin(((t * z) * 0.3333333333333333)) * sin(y))), (-0.3333333333333333 * (a / b)));
} else {
tmp = (t_1 * cos(y)) - (a / (b * 3.0));
}
return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) t_1 = Float64(2.0 * sqrt(x)) tmp = 0.0 if (Float64(t_1 * cos(Float64(y - Float64(Float64(z * t) / 3.0)))) <= 1.72e+19) tmp = fma(Float64(sqrt(x) * 2.0), fma(cos(Float64(-0.3333333333333333 * Float64(t * z))), cos(y), Float64(sin(Float64(Float64(t * z) * 0.3333333333333333)) * sin(y))), Float64(-0.3333333333333333 * Float64(a / b))); else tmp = Float64(Float64(t_1 * cos(y)) - Float64(a / Float64(b * 3.0))); end return tmp end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[LessEqual[N[(t$95$1 * N[Cos[N[(y - N[(N[(z * t), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 1.72e+19], N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[(N[Cos[N[(-0.3333333333333333 * N[(t * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] * N[Cos[y], $MachinePrecision] + N[(N[Sin[N[(N[(t * z), $MachinePrecision] * 0.3333333333333333), $MachinePrecision]], $MachinePrecision] * N[Sin[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(-0.3333333333333333 * N[(a / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(t$95$1 * N[Cos[y], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;t\_1 \cdot \cos \left(y - \frac{z \cdot t}{3}\right) \leq 1.72 \cdot 10^{+19}:\\
\;\;\;\;\mathsf{fma}\left(\sqrt{x} \cdot 2, \mathsf{fma}\left(\cos \left(-0.3333333333333333 \cdot \left(t \cdot z\right)\right), \cos y, \sin \left(\left(t \cdot z\right) \cdot 0.3333333333333333\right) \cdot \sin y\right), -0.3333333333333333 \cdot \frac{a}{b}\right)\\
\mathbf{else}:\\
\;\;\;\;t\_1 \cdot \cos y - \frac{a}{b \cdot 3}\\
\end{array}
\end{array}
if (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) < 1.72e19Initial program 81.4%
lift-*.f64N/A
lift-cos.f64N/A
lift--.f64N/A
cos-diffN/A
+-commutativeN/A
distribute-lft-inN/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
Applied rewrites83.3%
Taylor expanded in x around 0
cancel-sign-sub-invN/A
associate-*r*N/A
associate-*r*N/A
distribute-lft-outN/A
metadata-evalN/A
lower-fma.f64N/A
Applied rewrites83.3%
if 1.72e19 < (*.f64 (*.f64 #s(literal 2 binary64) (sqrt.f64 x)) (cos.f64 (-.f64 y (/.f64 (*.f64 z t) #s(literal 3 binary64))))) Initial program 50.8%
Taylor expanded in z around 0
lower-cos.f6470.0
Applied rewrites70.0%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
:precision binary64
(let* ((t_1 (/ a (* b 3.0))))
(if (<= t_1 -5e-43)
(/ -1.0 (* b (/ 3.0 a)))
(if (<= t_1 2e-13)
(* (* (sqrt x) 2.0) (cos (fma -0.3333333333333333 (* t z) y)))
(/ a (* -3.0 b))))))assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
double t_1 = a / (b * 3.0);
double tmp;
if (t_1 <= -5e-43) {
tmp = -1.0 / (b * (3.0 / a));
} else if (t_1 <= 2e-13) {
tmp = (sqrt(x) * 2.0) * cos(fma(-0.3333333333333333, (t * z), y));
} else {
tmp = a / (-3.0 * b);
}
return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) t_1 = Float64(a / Float64(b * 3.0)) tmp = 0.0 if (t_1 <= -5e-43) tmp = Float64(-1.0 / Float64(b * Float64(3.0 / a))); elseif (t_1 <= 2e-13) tmp = Float64(Float64(sqrt(x) * 2.0) * cos(fma(-0.3333333333333333, Float64(t * z), y))); else tmp = Float64(a / Float64(-3.0 * b)); end return tmp end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$1, -5e-43], N[(-1.0 / N[(b * N[(3.0 / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 2e-13], N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[N[(-0.3333333333333333 * N[(t * z), $MachinePrecision] + y), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], N[(a / N[(-3.0 * b), $MachinePrecision]), $MachinePrecision]]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
t_1 := \frac{a}{b \cdot 3}\\
\mathbf{if}\;t\_1 \leq -5 \cdot 10^{-43}:\\
\;\;\;\;\frac{-1}{b \cdot \frac{3}{a}}\\
\mathbf{elif}\;t\_1 \leq 2 \cdot 10^{-13}:\\
\;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(\mathsf{fma}\left(-0.3333333333333333, t \cdot z, y\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\frac{a}{-3 \cdot b}\\
\end{array}
\end{array}
if (/.f64 a (*.f64 b #s(literal 3 binary64))) < -5.00000000000000019e-43Initial program 76.4%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6480.4
Applied rewrites80.4%
Applied rewrites80.6%
Applied rewrites80.6%
if -5.00000000000000019e-43 < (/.f64 a (*.f64 b #s(literal 3 binary64))) < 2.0000000000000001e-13Initial program 56.3%
Taylor expanded in x around -inf
Applied rewrites54.0%
if 2.0000000000000001e-13 < (/.f64 a (*.f64 b #s(literal 3 binary64))) Initial program 85.9%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6489.1
Applied rewrites89.1%
Applied rewrites89.2%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (- (* (* 2.0 (sqrt x)) (cos y)) (/ a (* b 3.0))))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * sqrt(x)) * cos(y)) - (a / (b * 3.0));
}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a, b)
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
code = ((2.0d0 * sqrt(x)) * cos(y)) - (a / (b * 3.0d0))
end function
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
return ((2.0 * Math.sqrt(x)) * Math.cos(y)) - (a / (b * 3.0));
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b]) def code(x, y, z, t, a, b): return ((2.0 * math.sqrt(x)) * math.cos(y)) - (a / (b * 3.0))
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return Float64(Float64(Float64(2.0 * sqrt(x)) * cos(y)) - Float64(a / Float64(b * 3.0))) end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp = code(x, y, z, t, a, b)
tmp = ((2.0 * sqrt(x)) * cos(y)) - (a / (b * 3.0));
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(N[(N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision] * N[Cos[y], $MachinePrecision]), $MachinePrecision] - N[(a / N[(b * 3.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\left(2 \cdot \sqrt{x}\right) \cdot \cos y - \frac{a}{b \cdot 3}
\end{array}
Initial program 69.8%
Taylor expanded in z around 0
lower-cos.f6476.4
Applied rewrites76.4%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (fma (* 2.0 (cos y)) (sqrt x) (* (/ -0.3333333333333333 b) a)))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return fma((2.0 * cos(y)), sqrt(x), ((-0.3333333333333333 / b) * a));
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return fma(Float64(2.0 * cos(y)), sqrt(x), Float64(Float64(-0.3333333333333333 / b) * a)) end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(N[(2.0 * N[Cos[y], $MachinePrecision]), $MachinePrecision] * N[Sqrt[x], $MachinePrecision] + N[(N[(-0.3333333333333333 / b), $MachinePrecision] * a), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\mathsf{fma}\left(2 \cdot \cos y, \sqrt{x}, \frac{-0.3333333333333333}{b} \cdot a\right)
\end{array}
Initial program 69.8%
Taylor expanded in z around 0
lower-cos.f6476.4
Applied rewrites76.4%
Taylor expanded in z around 0
associate-*r/N/A
associate-*l/N/A
metadata-evalN/A
associate-*r/N/A
cancel-sign-sub-invN/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-sqrt.f64N/A
lower-*.f64N/A
associate-*r/N/A
metadata-evalN/A
distribute-neg-fracN/A
metadata-evalN/A
lower-/.f6476.3
Applied rewrites76.3%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (fma (* 2.0 (cos y)) (sqrt x) (* -0.3333333333333333 (/ a b))))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return fma((2.0 * cos(y)), sqrt(x), (-0.3333333333333333 * (a / b)));
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return fma(Float64(2.0 * cos(y)), sqrt(x), Float64(-0.3333333333333333 * Float64(a / b))) end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(N[(2.0 * N[Cos[y], $MachinePrecision]), $MachinePrecision] * N[Sqrt[x], $MachinePrecision] + N[(-0.3333333333333333 * N[(a / b), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\mathsf{fma}\left(2 \cdot \cos y, \sqrt{x}, -0.3333333333333333 \cdot \frac{a}{b}\right)
\end{array}
Initial program 69.8%
Taylor expanded in z around 0
cancel-sign-sub-invN/A
metadata-evalN/A
*-commutativeN/A
associate-*r*N/A
lower-fma.f64N/A
lower-*.f64N/A
lower-cos.f64N/A
lower-sqrt.f64N/A
lower-*.f64N/A
lower-/.f6476.3
Applied rewrites76.3%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
(FPCore (x y z t a b)
:precision binary64
(if (<= (* z t) -20.0)
(/ a (* -3.0 b))
(if (<= (* z t) 1e-138)
(fma
(/ -0.3333333333333333 b)
a
(* (sqrt x) (fma (* (* (* t t) z) z) -0.1111111111111111 2.0)))
(/ (/ a b) -3.0))))assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
double tmp;
if ((z * t) <= -20.0) {
tmp = a / (-3.0 * b);
} else if ((z * t) <= 1e-138) {
tmp = fma((-0.3333333333333333 / b), a, (sqrt(x) * fma((((t * t) * z) * z), -0.1111111111111111, 2.0)));
} else {
tmp = (a / b) / -3.0;
}
return tmp;
}
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) tmp = 0.0 if (Float64(z * t) <= -20.0) tmp = Float64(a / Float64(-3.0 * b)); elseif (Float64(z * t) <= 1e-138) tmp = fma(Float64(-0.3333333333333333 / b), a, Float64(sqrt(x) * fma(Float64(Float64(Float64(t * t) * z) * z), -0.1111111111111111, 2.0))); else tmp = Float64(Float64(a / b) / -3.0); end return tmp end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := If[LessEqual[N[(z * t), $MachinePrecision], -20.0], N[(a / N[(-3.0 * b), $MachinePrecision]), $MachinePrecision], If[LessEqual[N[(z * t), $MachinePrecision], 1e-138], N[(N[(-0.3333333333333333 / b), $MachinePrecision] * a + N[(N[Sqrt[x], $MachinePrecision] * N[(N[(N[(N[(t * t), $MachinePrecision] * z), $MachinePrecision] * z), $MachinePrecision] * -0.1111111111111111 + 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(a / b), $MachinePrecision] / -3.0), $MachinePrecision]]]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\begin{array}{l}
\mathbf{if}\;z \cdot t \leq -20:\\
\;\;\;\;\frac{a}{-3 \cdot b}\\
\mathbf{elif}\;z \cdot t \leq 10^{-138}:\\
\;\;\;\;\mathsf{fma}\left(\frac{-0.3333333333333333}{b}, a, \sqrt{x} \cdot \mathsf{fma}\left(\left(\left(t \cdot t\right) \cdot z\right) \cdot z, -0.1111111111111111, 2\right)\right)\\
\mathbf{else}:\\
\;\;\;\;\frac{\frac{a}{b}}{-3}\\
\end{array}
\end{array}
if (*.f64 z t) < -20Initial program 37.2%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6446.9
Applied rewrites46.9%
Applied rewrites47.0%
if -20 < (*.f64 z t) < 1.00000000000000007e-138Initial program 98.8%
Taylor expanded in z around 0
Applied rewrites96.3%
Taylor expanded in y around 0
Applied rewrites77.2%
if 1.00000000000000007e-138 < (*.f64 z t) Initial program 57.1%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6455.4
Applied rewrites55.4%
Applied rewrites55.5%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (/ -1.0 (* b (/ 3.0 a))))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return -1.0 / (b * (3.0 / a));
}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a, b)
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
code = (-1.0d0) / (b * (3.0d0 / a))
end function
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
return -1.0 / (b * (3.0 / a));
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b]) def code(x, y, z, t, a, b): return -1.0 / (b * (3.0 / a))
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return Float64(-1.0 / Float64(b * Float64(3.0 / a))) end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp = code(x, y, z, t, a, b)
tmp = -1.0 / (b * (3.0 / a));
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(-1.0 / N[(b * N[(3.0 / a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\frac{-1}{b \cdot \frac{3}{a}}
\end{array}
Initial program 69.8%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6449.7
Applied rewrites49.7%
Applied rewrites49.7%
Applied rewrites49.7%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (/ a (* -3.0 b)))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return a / (-3.0 * b);
}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a, b)
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
code = a / ((-3.0d0) * b)
end function
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
return a / (-3.0 * b);
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b]) def code(x, y, z, t, a, b): return a / (-3.0 * b)
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return Float64(a / Float64(-3.0 * b)) end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp = code(x, y, z, t, a, b)
tmp = a / (-3.0 * b);
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(a / N[(-3.0 * b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\frac{a}{-3 \cdot b}
\end{array}
Initial program 69.8%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6449.7
Applied rewrites49.7%
Applied rewrites49.7%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (* (/ -0.3333333333333333 b) a))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return (-0.3333333333333333 / b) * a;
}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a, b)
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
code = ((-0.3333333333333333d0) / b) * a
end function
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
return (-0.3333333333333333 / b) * a;
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b]) def code(x, y, z, t, a, b): return (-0.3333333333333333 / b) * a
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return Float64(Float64(-0.3333333333333333 / b) * a) end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp = code(x, y, z, t, a, b)
tmp = (-0.3333333333333333 / b) * a;
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(N[(-0.3333333333333333 / b), $MachinePrecision] * a), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
\frac{-0.3333333333333333}{b} \cdot a
\end{array}
Initial program 69.8%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6449.7
Applied rewrites49.7%
Applied rewrites49.7%
Applied rewrites49.7%
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. (FPCore (x y z t a b) :precision binary64 (* -0.3333333333333333 (/ a b)))
assert(x < y && y < z && z < t && t < a && a < b);
double code(double x, double y, double z, double t, double a, double b) {
return -0.3333333333333333 * (a / b);
}
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function.
real(8) function code(x, y, z, t, a, b)
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
code = (-0.3333333333333333d0) * (a / b)
end function
assert x < y && y < z && z < t && t < a && a < b;
public static double code(double x, double y, double z, double t, double a, double b) {
return -0.3333333333333333 * (a / b);
}
[x, y, z, t, a, b] = sort([x, y, z, t, a, b]) def code(x, y, z, t, a, b): return -0.3333333333333333 * (a / b)
x, y, z, t, a, b = sort([x, y, z, t, a, b]) function code(x, y, z, t, a, b) return Float64(-0.3333333333333333 * Float64(a / b)) end
x, y, z, t, a, b = num2cell(sort([x, y, z, t, a, b])){:}
function tmp = code(x, y, z, t, a, b)
tmp = -0.3333333333333333 * (a / b);
end
NOTE: x, y, z, t, a, and b should be sorted in increasing order before calling this function. code[x_, y_, z_, t_, a_, b_] := N[(-0.3333333333333333 * N[(a / b), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
[x, y, z, t, a, b] = \mathsf{sort}([x, y, z, t, a, b])\\
\\
-0.3333333333333333 \cdot \frac{a}{b}
\end{array}
Initial program 69.8%
Taylor expanded in a around inf
lower-*.f64N/A
lower-/.f6449.7
Applied rewrites49.7%
(FPCore (x y z t a b)
:precision binary64
(let* ((t_1 (/ (/ 0.3333333333333333 z) t))
(t_2 (/ (/ a 3.0) b))
(t_3 (* 2.0 (sqrt x))))
(if (< z -1.3793337487235141e+129)
(- (* t_3 (cos (- (/ 1.0 y) t_1))) t_2)
(if (< z 3.516290613555987e+106)
(- (* (* (sqrt x) 2.0) (cos (- y (* (/ t 3.0) z)))) t_2)
(- (* (cos (- y t_1)) t_3) (/ (/ a b) 3.0))))))
double code(double x, double y, double z, double t, double a, double b) {
double t_1 = (0.3333333333333333 / z) / t;
double t_2 = (a / 3.0) / b;
double t_3 = 2.0 * sqrt(x);
double tmp;
if (z < -1.3793337487235141e+129) {
tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2;
} else if (z < 3.516290613555987e+106) {
tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2;
} else {
tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0);
}
return tmp;
}
real(8) function code(x, y, z, t, a, b)
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) :: t_1
real(8) :: t_2
real(8) :: t_3
real(8) :: tmp
t_1 = (0.3333333333333333d0 / z) / t
t_2 = (a / 3.0d0) / b
t_3 = 2.0d0 * sqrt(x)
if (z < (-1.3793337487235141d+129)) then
tmp = (t_3 * cos(((1.0d0 / y) - t_1))) - t_2
else if (z < 3.516290613555987d+106) then
tmp = ((sqrt(x) * 2.0d0) * cos((y - ((t / 3.0d0) * z)))) - t_2
else
tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0d0)
end if
code = tmp
end function
public static double code(double x, double y, double z, double t, double a, double b) {
double t_1 = (0.3333333333333333 / z) / t;
double t_2 = (a / 3.0) / b;
double t_3 = 2.0 * Math.sqrt(x);
double tmp;
if (z < -1.3793337487235141e+129) {
tmp = (t_3 * Math.cos(((1.0 / y) - t_1))) - t_2;
} else if (z < 3.516290613555987e+106) {
tmp = ((Math.sqrt(x) * 2.0) * Math.cos((y - ((t / 3.0) * z)))) - t_2;
} else {
tmp = (Math.cos((y - t_1)) * t_3) - ((a / b) / 3.0);
}
return tmp;
}
def code(x, y, z, t, a, b): t_1 = (0.3333333333333333 / z) / t t_2 = (a / 3.0) / b t_3 = 2.0 * math.sqrt(x) tmp = 0 if z < -1.3793337487235141e+129: tmp = (t_3 * math.cos(((1.0 / y) - t_1))) - t_2 elif z < 3.516290613555987e+106: tmp = ((math.sqrt(x) * 2.0) * math.cos((y - ((t / 3.0) * z)))) - t_2 else: tmp = (math.cos((y - t_1)) * t_3) - ((a / b) / 3.0) return tmp
function code(x, y, z, t, a, b) t_1 = Float64(Float64(0.3333333333333333 / z) / t) t_2 = Float64(Float64(a / 3.0) / b) t_3 = Float64(2.0 * sqrt(x)) tmp = 0.0 if (z < -1.3793337487235141e+129) tmp = Float64(Float64(t_3 * cos(Float64(Float64(1.0 / y) - t_1))) - t_2); elseif (z < 3.516290613555987e+106) tmp = Float64(Float64(Float64(sqrt(x) * 2.0) * cos(Float64(y - Float64(Float64(t / 3.0) * z)))) - t_2); else tmp = Float64(Float64(cos(Float64(y - t_1)) * t_3) - Float64(Float64(a / b) / 3.0)); end return tmp end
function tmp_2 = code(x, y, z, t, a, b) t_1 = (0.3333333333333333 / z) / t; t_2 = (a / 3.0) / b; t_3 = 2.0 * sqrt(x); tmp = 0.0; if (z < -1.3793337487235141e+129) tmp = (t_3 * cos(((1.0 / y) - t_1))) - t_2; elseif (z < 3.516290613555987e+106) tmp = ((sqrt(x) * 2.0) * cos((y - ((t / 3.0) * z)))) - t_2; else tmp = (cos((y - t_1)) * t_3) - ((a / b) / 3.0); end tmp_2 = tmp; end
code[x_, y_, z_, t_, a_, b_] := Block[{t$95$1 = N[(N[(0.3333333333333333 / z), $MachinePrecision] / t), $MachinePrecision]}, Block[{t$95$2 = N[(N[(a / 3.0), $MachinePrecision] / b), $MachinePrecision]}, Block[{t$95$3 = N[(2.0 * N[Sqrt[x], $MachinePrecision]), $MachinePrecision]}, If[Less[z, -1.3793337487235141e+129], N[(N[(t$95$3 * N[Cos[N[(N[(1.0 / y), $MachinePrecision] - t$95$1), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], If[Less[z, 3.516290613555987e+106], N[(N[(N[(N[Sqrt[x], $MachinePrecision] * 2.0), $MachinePrecision] * N[Cos[N[(y - N[(N[(t / 3.0), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - t$95$2), $MachinePrecision], N[(N[(N[Cos[N[(y - t$95$1), $MachinePrecision]], $MachinePrecision] * t$95$3), $MachinePrecision] - N[(N[(a / b), $MachinePrecision] / 3.0), $MachinePrecision]), $MachinePrecision]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \frac{\frac{0.3333333333333333}{z}}{t}\\
t_2 := \frac{\frac{a}{3}}{b}\\
t_3 := 2 \cdot \sqrt{x}\\
\mathbf{if}\;z < -1.3793337487235141 \cdot 10^{+129}:\\
\;\;\;\;t\_3 \cdot \cos \left(\frac{1}{y} - t\_1\right) - t\_2\\
\mathbf{elif}\;z < 3.516290613555987 \cdot 10^{+106}:\\
\;\;\;\;\left(\sqrt{x} \cdot 2\right) \cdot \cos \left(y - \frac{t}{3} \cdot z\right) - t\_2\\
\mathbf{else}:\\
\;\;\;\;\cos \left(y - t\_1\right) \cdot t\_3 - \frac{\frac{a}{b}}{3}\\
\end{array}
\end{array}
herbie shell --seed 2024324
(FPCore (x y z t a b)
:name "Diagrams.Solve.Polynomial:cubForm from diagrams-solve-0.1, K"
:precision binary64
:alt
(! :herbie-platform default (if (< z -1379333748723514100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (* (* 2 (sqrt x)) (cos (- (/ 1 y) (/ (/ 3333333333333333/10000000000000000 z) t)))) (/ (/ a 3) b)) (if (< z 35162906135559870000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- (* (* (sqrt x) 2) (cos (- y (* (/ t 3) z)))) (/ (/ a 3) b)) (- (* (cos (- y (/ (/ 3333333333333333/10000000000000000 z) t))) (* 2 (sqrt x))) (/ (/ a b) 3)))))
(- (* (* 2.0 (sqrt x)) (cos (- y (/ (* z t) 3.0)))) (/ a (* b 3.0))))