
(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 7 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 (/ x (/ y z))))
double code(double x, double y, double z) {
return x - (x / (y / z));
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x - (x / (y / z))
end function
public static double code(double x, double y, double z) {
return x - (x / (y / z));
}
def code(x, y, z): return x - (x / (y / z))
function code(x, y, z) return Float64(x - Float64(x / Float64(y / z))) end
function tmp = code(x, y, z) tmp = x - (x / (y / z)); end
code[x_, y_, z_] := N[(x - N[(x / N[(y / z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - \frac{x}{\frac{y}{z}}
\end{array}
Initial program 88.0%
remove-double-neg88.0%
distribute-frac-neg288.0%
distribute-frac-neg88.0%
distribute-rgt-neg-in88.0%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
Taylor expanded in z around 0 93.4%
associate-*r/93.4%
associate-*r*93.4%
mul-1-neg93.4%
Simplified93.4%
frac-2neg93.4%
div-inv93.4%
add-sqr-sqrt43.7%
sqrt-unprod55.8%
sqr-neg55.8%
sqrt-unprod20.2%
add-sqr-sqrt39.2%
cancel-sign-sub-inv39.2%
div-inv39.2%
associate-/l*40.2%
add-sqr-sqrt19.9%
sqrt-unprod49.2%
sqr-neg49.2%
sqrt-unprod45.7%
add-sqr-sqrt95.4%
Applied egg-rr95.4%
Taylor expanded in x around 0 93.4%
associate-*l/91.6%
associate-/r/96.0%
Simplified96.0%
(FPCore (x y z) :precision binary64 (if (or (<= z -4.9e-39) (not (<= z 1.35e-32))) (* z (/ x (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -4.9e-39) || !(z <= 1.35e-32)) {
tmp = z * (x / -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 ((z <= (-4.9d-39)) .or. (.not. (z <= 1.35d-32))) then
tmp = z * (x / -y)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -4.9e-39) || !(z <= 1.35e-32)) {
tmp = z * (x / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -4.9e-39) or not (z <= 1.35e-32): tmp = z * (x / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -4.9e-39) || !(z <= 1.35e-32)) tmp = Float64(z * Float64(x / Float64(-y))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -4.9e-39) || ~((z <= 1.35e-32))) tmp = z * (x / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -4.9e-39], N[Not[LessEqual[z, 1.35e-32]], $MachinePrecision]], N[(z * N[(x / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.9 \cdot 10^{-39} \lor \neg \left(z \leq 1.35 \cdot 10^{-32}\right):\\
\;\;\;\;z \cdot \frac{x}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -4.89999999999999974e-39 or 1.3499999999999999e-32 < z Initial program 92.4%
remove-double-neg92.4%
distribute-frac-neg292.4%
distribute-frac-neg92.4%
distribute-rgt-neg-in92.4%
associate-/l*92.2%
distribute-frac-neg92.2%
distribute-frac-neg292.2%
remove-double-neg92.2%
div-sub92.2%
*-inverses92.2%
Simplified92.2%
Taylor expanded in z around inf 78.4%
mul-1-neg78.4%
distribute-frac-neg278.4%
*-commutative78.4%
associate-/l*78.5%
Simplified78.5%
if -4.89999999999999974e-39 < z < 1.3499999999999999e-32Initial program 81.8%
remove-double-neg81.8%
distribute-frac-neg281.8%
distribute-frac-neg81.8%
distribute-rgt-neg-in81.8%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 74.0%
Final simplification76.6%
(FPCore (x y z) :precision binary64 (if (or (<= z -9e-39) (not (<= z 2.25e-33))) (* x (/ z (- y))) x))
double code(double x, double y, double z) {
double tmp;
if ((z <= -9e-39) || !(z <= 2.25e-33)) {
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 ((z <= (-9d-39)) .or. (.not. (z <= 2.25d-33))) 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 ((z <= -9e-39) || !(z <= 2.25e-33)) {
tmp = x * (z / -y);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -9e-39) or not (z <= 2.25e-33): tmp = x * (z / -y) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -9e-39) || !(z <= 2.25e-33)) tmp = Float64(x * Float64(z / Float64(-y))); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -9e-39) || ~((z <= 2.25e-33))) tmp = x * (z / -y); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -9e-39], N[Not[LessEqual[z, 2.25e-33]], $MachinePrecision]], N[(x * N[(z / (-y)), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -9 \cdot 10^{-39} \lor \neg \left(z \leq 2.25 \cdot 10^{-33}\right):\\
\;\;\;\;x \cdot \frac{z}{-y}\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
if z < -9.0000000000000002e-39 or 2.24999999999999995e-33 < z Initial program 92.4%
remove-double-neg92.4%
distribute-frac-neg292.4%
distribute-frac-neg92.4%
distribute-rgt-neg-in92.4%
associate-/l*92.2%
distribute-frac-neg92.2%
distribute-frac-neg292.2%
remove-double-neg92.2%
div-sub92.2%
*-inverses92.2%
Simplified92.2%
Taylor expanded in z around inf 78.4%
mul-1-neg78.4%
distribute-frac-neg278.4%
associate-*r/75.1%
Simplified75.1%
if -9.0000000000000002e-39 < z < 2.24999999999999995e-33Initial program 81.8%
remove-double-neg81.8%
distribute-frac-neg281.8%
distribute-frac-neg81.8%
distribute-rgt-neg-in81.8%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 74.0%
Final simplification74.6%
(FPCore (x y z) :precision binary64 (if (<= z -6.5e-39) (/ (* x (- z)) y) (if (<= z 4e-31) x (* z (/ x (- y))))))
double code(double x, double y, double z) {
double tmp;
if (z <= -6.5e-39) {
tmp = (x * -z) / y;
} else if (z <= 4e-31) {
tmp = x;
} else {
tmp = 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 <= (-6.5d-39)) then
tmp = (x * -z) / y
else if (z <= 4d-31) then
tmp = x
else
tmp = z * (x / -y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -6.5e-39) {
tmp = (x * -z) / y;
} else if (z <= 4e-31) {
tmp = x;
} else {
tmp = z * (x / -y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -6.5e-39: tmp = (x * -z) / y elif z <= 4e-31: tmp = x else: tmp = z * (x / -y) return tmp
function code(x, y, z) tmp = 0.0 if (z <= -6.5e-39) tmp = Float64(Float64(x * Float64(-z)) / y); elseif (z <= 4e-31) tmp = x; else tmp = Float64(z * Float64(x / Float64(-y))); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -6.5e-39) tmp = (x * -z) / y; elseif (z <= 4e-31) tmp = x; else tmp = z * (x / -y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -6.5e-39], N[(N[(x * (-z)), $MachinePrecision] / y), $MachinePrecision], If[LessEqual[z, 4e-31], x, N[(z * N[(x / (-y)), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -6.5 \cdot 10^{-39}:\\
\;\;\;\;\frac{x \cdot \left(-z\right)}{y}\\
\mathbf{elif}\;z \leq 4 \cdot 10^{-31}:\\
\;\;\;\;x\\
\mathbf{else}:\\
\;\;\;\;z \cdot \frac{x}{-y}\\
\end{array}
\end{array}
if z < -6.50000000000000027e-39Initial program 90.9%
remove-double-neg90.9%
distribute-frac-neg290.9%
distribute-frac-neg90.9%
distribute-rgt-neg-in90.9%
associate-/l*93.3%
distribute-frac-neg93.3%
distribute-frac-neg293.3%
remove-double-neg93.3%
div-sub93.3%
*-inverses93.3%
Simplified93.3%
Taylor expanded in z around inf 75.5%
associate-*r/75.5%
associate-*r*75.5%
mul-1-neg75.5%
Simplified75.5%
if -6.50000000000000027e-39 < z < 4e-31Initial program 81.8%
remove-double-neg81.8%
distribute-frac-neg281.8%
distribute-frac-neg81.8%
distribute-rgt-neg-in81.8%
associate-/l*99.9%
distribute-frac-neg99.9%
distribute-frac-neg299.9%
remove-double-neg99.9%
div-sub99.9%
*-inverses99.9%
Simplified99.9%
Taylor expanded in z around 0 74.0%
if 4e-31 < z Initial program 93.8%
remove-double-neg93.8%
distribute-frac-neg293.8%
distribute-frac-neg93.8%
distribute-rgt-neg-in93.8%
associate-/l*91.2%
distribute-frac-neg91.2%
distribute-frac-neg291.2%
remove-double-neg91.2%
div-sub91.2%
*-inverses91.2%
Simplified91.2%
Taylor expanded in z around inf 81.3%
mul-1-neg81.3%
distribute-frac-neg281.3%
*-commutative81.3%
associate-/l*82.6%
Simplified82.6%
Final simplification77.0%
(FPCore (x y z) :precision binary64 (- x (* x (/ z y))))
double code(double x, double y, double z) {
return x - (x * (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 - (x * (z / y))
end function
public static double code(double x, double y, double z) {
return x - (x * (z / y));
}
def code(x, y, z): return x - (x * (z / y))
function code(x, y, z) return Float64(x - Float64(x * Float64(z / y))) end
function tmp = code(x, y, z) tmp = x - (x * (z / y)); end
code[x_, y_, z_] := N[(x - N[(x * N[(z / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x - x \cdot \frac{z}{y}
\end{array}
Initial program 88.0%
remove-double-neg88.0%
distribute-frac-neg288.0%
distribute-frac-neg88.0%
distribute-rgt-neg-in88.0%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
Taylor expanded in z around 0 93.4%
associate-*r/93.4%
associate-*r*93.4%
mul-1-neg93.4%
Simplified93.4%
frac-2neg93.4%
div-inv93.4%
add-sqr-sqrt43.7%
sqrt-unprod55.8%
sqr-neg55.8%
sqrt-unprod20.2%
add-sqr-sqrt39.2%
cancel-sign-sub-inv39.2%
div-inv39.2%
associate-/l*40.2%
add-sqr-sqrt19.9%
sqrt-unprod49.2%
sqr-neg49.2%
sqrt-unprod45.7%
add-sqr-sqrt95.4%
Applied egg-rr95.4%
(FPCore (x y z) :precision binary64 (* x (- 1.0 (/ z y))))
double code(double x, double y, double z) {
return x * (1.0 - (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 * (1.0d0 - (z / y))
end function
public static double code(double x, double y, double z) {
return x * (1.0 - (z / y));
}
def code(x, y, z): return x * (1.0 - (z / y))
function code(x, y, z) return Float64(x * Float64(1.0 - Float64(z / y))) end
function tmp = code(x, y, z) tmp = x * (1.0 - (z / y)); end
code[x_, y_, z_] := N[(x * N[(1.0 - N[(z / y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot \left(1 - \frac{z}{y}\right)
\end{array}
Initial program 88.0%
remove-double-neg88.0%
distribute-frac-neg288.0%
distribute-frac-neg88.0%
distribute-rgt-neg-in88.0%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
(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 88.0%
remove-double-neg88.0%
distribute-frac-neg288.0%
distribute-frac-neg88.0%
distribute-rgt-neg-in88.0%
associate-/l*95.4%
distribute-frac-neg95.4%
distribute-frac-neg295.4%
remove-double-neg95.4%
div-sub95.4%
*-inverses95.4%
Simplified95.4%
Taylor expanded in z around 0 41.7%
(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 2024132
(FPCore (x y z)
:name "Diagrams.Backend.Cairo.Internal:setTexture from diagrams-cairo-1.3.0.3"
:precision binary64
:alt
(! :herbie-platform default (if (< z -206020233192173900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (- x (/ (* z x) y)) (if (< z 1693976601382852600000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000) (/ x (/ y (- y z))) (* (- y z) (/ x y)))))
(/ (* x (- y z)) y))