
(FPCore (x y z) :precision binary64 (/ (* x (- y z)) y))
double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y - z)) / y
end function
public static double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
def code(x, y, z): return (x * (y - z)) / y
function code(x, y, z) return Float64(Float64(x * Float64(y - z)) / y) end
function tmp = code(x, y, z) tmp = (x * (y - z)) / y; end
code[x_, y_, z_] := N[(N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot \left(y - z\right)}{y}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (/ (* x (- y z)) y))
double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (x * (y - z)) / y
end function
public static double code(double x, double y, double z) {
return (x * (y - z)) / y;
}
def code(x, y, z): return (x * (y - z)) / y
function code(x, y, z) return Float64(Float64(x * Float64(y - z)) / y) end
function tmp = code(x, y, z) tmp = (x * (y - z)) / y; end
code[x_, y_, z_] := N[(N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision] / y), $MachinePrecision]
\begin{array}{l}
\\
\frac{x \cdot \left(y - z\right)}{y}
\end{array}
(FPCore (x y z) :precision binary64 (- x (/ 1.0 (* (/ y z) (/ 1.0 x)))))
double code(double x, double y, double z) {
return x - (1.0 / ((y / z) * (1.0 / x)));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x - (1.0d0 / ((y / z) * (1.0d0 / x)))
end function
public static double code(double x, double y, double z) {
return x - (1.0 / ((y / z) * (1.0 / x)));
}
def code(x, y, z): return x - (1.0 / ((y / z) * (1.0 / x)))
function code(x, y, z) return Float64(x - Float64(1.0 / Float64(Float64(y / z) * Float64(1.0 / x)))) end
function tmp = code(x, y, z) tmp = x - (1.0 / ((y / z) * (1.0 / x))); end
code[x_, y_, z_] := N[(x - N[(1.0 / N[(N[(y / z), $MachinePrecision] * N[(1.0 / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{1}{\frac{y}{z} \cdot \frac{1}{x}}
\end{array}
Initial program 82.0%
associate-*l/82.9%
distribute-rgt-out--76.6%
associate-*r/78.6%
associate-*l/94.4%
*-inverses94.4%
*-lft-identity94.4%
Simplified94.4%
associate-*r/94.0%
clear-num93.9%
Applied egg-rr93.9%
associate-/r*97.1%
div-inv97.0%
Applied egg-rr97.0%
Final simplification97.0%
(FPCore (x y z)
:precision binary64
(if (<= y -2.7e+179)
x
(if (or (<= y -1.06e+158) (and (not (<= y -2.5e-149)) (<= y 3.1e-22)))
(* x (/ (- z) y))
x)))
double code(double x, double y, double z) {
double tmp;
if (y <= -2.7e+179) {
tmp = x;
} else if ((y <= -1.06e+158) || (!(y <= -2.5e-149) && (y <= 3.1e-22))) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (y <= (-2.7d+179)) then
tmp = x
else if ((y <= (-1.06d+158)) .or. (.not. (y <= (-2.5d-149))) .and. (y <= 3.1d-22)) then
tmp = x * (-z / y)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -2.7e+179) {
tmp = x;
} else if ((y <= -1.06e+158) || (!(y <= -2.5e-149) && (y <= 3.1e-22))) {
tmp = x * (-z / y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -2.7e+179: tmp = x elif (y <= -1.06e+158) or (not (y <= -2.5e-149) and (y <= 3.1e-22)): tmp = x * (-z / y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -2.7e+179) tmp = x; elseif ((y <= -1.06e+158) || (!(y <= -2.5e-149) && (y <= 3.1e-22))) tmp = Float64(x * Float64(Float64(-z) / y)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -2.7e+179) tmp = x; elseif ((y <= -1.06e+158) || (~((y <= -2.5e-149)) && (y <= 3.1e-22))) tmp = x * (-z / y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -2.7e+179], x, If[Or[LessEqual[y, -1.06e+158], And[N[Not[LessEqual[y, -2.5e-149]], $MachinePrecision], LessEqual[y, 3.1e-22]]], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], x]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.7 \cdot 10^{+179}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq -1.06 \cdot 10^{+158} \lor \neg \left(y \leq -2.5 \cdot 10^{-149}\right) \land y \leq 3.1 \cdot 10^{-22}:\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if y < -2.69999999999999982e179 or -1.06e158 < y < -2.49999999999999984e-149 or 3.10000000000000013e-22 < y Initial program 76.9%
associate-*l/78.4%
distribute-rgt-out--77.1%
associate-*r/73.4%
associate-*l/96.5%
*-inverses96.5%
*-lft-identity96.5%
Simplified96.5%
Taylor expanded in z around 0 78.5%
if -2.69999999999999982e179 < y < -1.06e158 or -2.49999999999999984e-149 < y < 3.10000000000000013e-22Initial program 90.9%
associate-*l/90.8%
distribute-rgt-out--75.6%
associate-*r/87.6%
associate-*l/90.9%
*-inverses90.9%
*-lft-identity90.9%
Simplified90.9%
Taylor expanded in z around inf 79.4%
mul-1-neg79.4%
associate-*l/79.0%
distribute-rgt-neg-in79.0%
Simplified79.0%
Final simplification78.7%
(FPCore (x y z) :precision binary64 (if (<= z -7.5e+52) (* x (/ (- z) y)) (if (<= z 0.032) x (/ (- z) (/ y x)))))
double code(double x, double y, double z) {
double tmp;
if (z <= -7.5e+52) {
tmp = x * (-z / y);
} else if (z <= 0.032) {
tmp = x;
} else {
tmp = -z / (y / x);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (z <= (-7.5d+52)) then
tmp = x * (-z / y)
else if (z <= 0.032d0) then
tmp = x
else
tmp = -z / (y / x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -7.5e+52) {
tmp = x * (-z / y);
} else if (z <= 0.032) {
tmp = x;
} else {
tmp = -z / (y / x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -7.5e+52: tmp = x * (-z / y) elif z <= 0.032: tmp = x else: tmp = -z / (y / x) return tmp
function code(x, y, z) tmp = 0.0 if (z <= -7.5e+52) tmp = Float64(x * Float64(Float64(-z) / y)); elseif (z <= 0.032) tmp = x; else tmp = Float64(Float64(-z) / Float64(y / x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -7.5e+52) tmp = x * (-z / y); elseif (z <= 0.032) tmp = x; else tmp = -z / (y / x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -7.5e+52], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 0.032], x, N[((-z) / N[(y / x), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -7.5 \cdot 10^{+52}:\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{elif}\;z \leq 0.032:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{-z}{\frac{y}{x}}\\
\end{array}
\end{array}
if z < -7.49999999999999995e52Initial program 88.5%
associate-*l/88.7%
distribute-rgt-out--76.8%
associate-*r/83.8%
associate-*l/95.3%
*-inverses95.3%
*-lft-identity95.3%
Simplified95.3%
Taylor expanded in z around inf 79.7%
mul-1-neg79.7%
associate-*l/79.9%
distribute-rgt-neg-in79.9%
Simplified79.9%
if -7.49999999999999995e52 < z < 0.032000000000000001Initial program 76.7%
associate-*l/80.1%
distribute-rgt-out--77.9%
associate-*r/74.1%
associate-*l/93.5%
*-inverses93.5%
*-lft-identity93.5%
Simplified93.5%
Taylor expanded in z around 0 79.5%
if 0.032000000000000001 < z Initial program 89.0%
associate-*l/85.2%
distribute-rgt-out--73.8%
associate-*r/84.7%
associate-*l/95.7%
*-inverses95.7%
*-lft-identity95.7%
Simplified95.7%
Taylor expanded in z around inf 72.4%
mul-1-neg72.4%
associate-*l/64.2%
distribute-rgt-neg-in64.2%
Simplified64.2%
distribute-rgt-neg-out64.2%
associate-/r/69.7%
distribute-neg-frac69.7%
Applied egg-rr69.7%
Final simplification76.9%
(FPCore (x y z) :precision binary64 (if (<= z -3.7e+52) (* x (/ (- z) y)) (if (<= z 0.003) x (/ (* x (- z)) y))))
double code(double x, double y, double z) {
double tmp;
if (z <= -3.7e+52) {
tmp = x * (-z / y);
} else if (z <= 0.003) {
tmp = x;
} else {
tmp = (x * -z) / y;
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (z <= (-3.7d+52)) then
tmp = x * (-z / y)
else if (z <= 0.003d0) then
tmp = x
else
tmp = (x * -z) / y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -3.7e+52) {
tmp = x * (-z / y);
} else if (z <= 0.003) {
tmp = x;
} else {
tmp = (x * -z) / y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -3.7e+52: tmp = x * (-z / y) elif z <= 0.003: tmp = x else: tmp = (x * -z) / y return tmp
function code(x, y, z) tmp = 0.0 if (z <= -3.7e+52) tmp = Float64(x * Float64(Float64(-z) / y)); elseif (z <= 0.003) tmp = x; else tmp = Float64(Float64(x * Float64(-z)) / y); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -3.7e+52) tmp = x * (-z / y); elseif (z <= 0.003) tmp = x; else tmp = (x * -z) / y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -3.7e+52], N[(x * N[((-z) / y), $MachinePrecision]), $MachinePrecision], If[LessEqual[z, 0.003], x, N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.7 \cdot 10^{+52}:\\
\;\;\;\;x \cdot \frac{-z}{y}\\
\mathbf{elif}\;z \leq 0.003:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\end{array}
\end{array}
if z < -3.7e52Initial program 88.5%
associate-*l/88.7%
distribute-rgt-out--76.8%
associate-*r/83.8%
associate-*l/95.3%
*-inverses95.3%
*-lft-identity95.3%
Simplified95.3%
Taylor expanded in z around inf 79.7%
mul-1-neg79.7%
associate-*l/79.9%
distribute-rgt-neg-in79.9%
Simplified79.9%
if -3.7e52 < z < 0.0030000000000000001Initial program 76.7%
associate-*l/80.1%
distribute-rgt-out--77.9%
associate-*r/74.1%
associate-*l/93.5%
*-inverses93.5%
*-lft-identity93.5%
Simplified93.5%
Taylor expanded in z around 0 79.5%
if 0.0030000000000000001 < z Initial program 89.0%
associate-*l/85.2%
distribute-rgt-out--73.8%
associate-*r/84.7%
associate-*l/95.7%
*-inverses95.7%
*-lft-identity95.7%
Simplified95.7%
Taylor expanded in z around inf 72.4%
associate-*r/72.4%
neg-mul-172.4%
distribute-rgt-neg-in72.4%
Simplified72.4%
Final simplification77.6%
(FPCore (x y z) :precision binary64 (if (<= x 3e+74) x (* y (/ x y))))
double code(double x, double y, double z) {
double tmp;
if (x <= 3e+74) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (x <= 3d+74) then
tmp = x
else
tmp = y * (x / y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= 3e+74) {
tmp = x;
} else {
tmp = y * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= 3e+74: tmp = x else: tmp = y * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= 3e+74) tmp = x; else tmp = Float64(y * Float64(x / y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= 3e+74) tmp = x; else tmp = y * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, 3e+74], x, N[(y * N[(x / y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq 3 \cdot 10^{+74}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;y \cdot \frac{x}{y}\\
\end{array}
\end{array}
if x < 3e74Initial program 83.6%
associate-*l/79.6%
distribute-rgt-out--76.0%
associate-*r/81.2%
associate-*l/94.3%
*-inverses94.3%
*-lft-identity94.3%
Simplified94.3%
Taylor expanded in z around 0 57.0%
if 3e74 < x Initial program 76.3%
Taylor expanded in y around inf 30.5%
associate-/l*57.7%
div-inv59.4%
clear-num59.5%
Applied egg-rr59.5%
Final simplification57.5%
(FPCore (x y z) :precision binary64 (- x (* z (/ x y))))
double code(double x, double y, double z) {
return x - (z * (x / y));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x - (z * (x / y))
end function
public static double code(double x, double y, double z) {
return x - (z * (x / y));
}
def code(x, y, z): return x - (z * (x / y))
function code(x, y, z) return Float64(x - Float64(z * Float64(x / y))) end
function tmp = code(x, y, z) tmp = x - (z * (x / y)); end
code[x_, y_, z_] := N[(x - N[(z * N[(x / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - z \cdot \frac{x}{y}
\end{array}
Initial program 82.0%
associate-*l/82.9%
distribute-rgt-out--76.6%
associate-*r/78.6%
associate-*l/94.4%
*-inverses94.4%
*-lft-identity94.4%
Simplified94.4%
Final simplification94.4%
(FPCore (x y z) :precision binary64 (- x (/ z (/ y x))))
double code(double x, double y, double z) {
return x - (z / (y / x));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x - (z / (y / x))
end function
public static double code(double x, double y, double z) {
return x - (z / (y / x));
}
def code(x, y, z): return x - (z / (y / x))
function code(x, y, z) return Float64(x - Float64(z / Float64(y / x))) end
function tmp = code(x, y, z) tmp = x - (z / (y / x)); end
code[x_, y_, z_] := N[(x - N[(z / N[(y / x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{z}{\frac{y}{x}}
\end{array}
Initial program 82.0%
associate-*l/82.9%
distribute-rgt-out--76.6%
associate-*r/78.6%
associate-*l/94.4%
*-inverses94.4%
*-lft-identity94.4%
Simplified94.4%
clear-num94.4%
un-div-inv95.1%
Applied egg-rr95.1%
Final simplification95.1%
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
Initial program 82.0%
associate-*l/82.9%
distribute-rgt-out--76.6%
associate-*r/78.6%
associate-*l/94.4%
*-inverses94.4%
*-lft-identity94.4%
Simplified94.4%
Taylor expanded in z around 0 55.3%
Final simplification55.3%
(FPCore (x y z) :precision binary64 (if (< z -2.060202331921739e+104) (- x (/ (* z x) y)) (if (< z 1.6939766013828526e+213) (/ x (/ y (- y z))) (* (- y z) (/ x y)))))
double code(double x, double y, double z) {
double tmp;
if (z < -2.060202331921739e+104) {
tmp = x - ((z * x) / y);
} else if (z < 1.6939766013828526e+213) {
tmp = x / (y / (y - z));
} else {
tmp = (y - z) * (x / y);
}
return tmp;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
real(8) :: tmp
if (z < (-2.060202331921739d+104)) then
tmp = x - ((z * x) / y)
else if (z < 1.6939766013828526d+213) then
tmp = x / (y / (y - z))
else
tmp = (y - z) * (x / y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z < -2.060202331921739e+104) {
tmp = x - ((z * x) / y);
} else if (z < 1.6939766013828526e+213) {
tmp = x / (y / (y - z));
} else {
tmp = (y - z) * (x / y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z < -2.060202331921739e+104: tmp = x - ((z * x) / y) elif z < 1.6939766013828526e+213: tmp = x / (y / (y - z)) else: tmp = (y - z) * (x / y) return tmp
function code(x, y, z) tmp = 0.0 if (z < -2.060202331921739e+104) tmp = Float64(x - Float64(Float64(z * x) / y)); elseif (z < 1.6939766013828526e+213) tmp = Float64(x / Float64(y / Float64(y - z))); else tmp = Float64(Float64(y - z) * Float64(x / y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z < -2.060202331921739e+104) tmp = x - ((z * x) / y); elseif (z < 1.6939766013828526e+213) tmp = x / (y / (y - z)); else tmp = (y - z) * (x / y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Less[z, -2.060202331921739e+104], N[(x - N[(N[(z * x), $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], If[Less[z, 1.6939766013828526e+213], N[(x / N[(y / N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], N[(N[(y - z), $MachinePrecision] * N[(x / y), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z < -2.060202331921739 \cdot 10^{+104}:\\
\;\;\;\;x - \frac{z \cdot x}{y}\\
\mathbf{elif}\;z < 1.6939766013828526 \cdot 10^{+213}:\\
\;\;\;\;\frac{x}{\frac{y}{y - z}}\\
\mathbf{else}:\\
\;\;\;\;\left(y - z\right) \cdot \frac{x}{y}\\
\end{array}
\end{array}
herbie shell --seed 2023207
(FPCore (x y z)
:name "Diagrams.Backend.Cairo.Internal:setTexture from diagrams-cairo-1.3.0.3"
:precision binary64
:herbie-target
(if (< z -2.060202331921739e+104) (- x (/ (* z x) y)) (if (< z 1.6939766013828526e+213) (/ x (/ y (- y z))) (* (- y z) (/ x y))))
(/ (* x (- y z)) y))