
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + 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 + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (+ (+ (+ (+ x y) y) x) z) x))
double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + 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 + y) + y) + x) + z) + x
end function
public static double code(double x, double y, double z) {
return ((((x + y) + y) + x) + z) + x;
}
def code(x, y, z): return ((((x + y) + y) + x) + z) + x
function code(x, y, z) return Float64(Float64(Float64(Float64(Float64(x + y) + y) + x) + z) + x) end
function tmp = code(x, y, z) tmp = ((((x + y) + y) + x) + z) + x; end
code[x_, y_, z_] := N[(N[(N[(N[(N[(x + y), $MachinePrecision] + y), $MachinePrecision] + x), $MachinePrecision] + z), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\left(\left(\left(\left(x + y\right) + y\right) + x\right) + z\right) + x
\end{array}
(FPCore (x y z) :precision binary64 (- z (fma x -3.0 (* y -2.0))))
double code(double x, double y, double z) {
return z - fma(x, -3.0, (y * -2.0));
}
function code(x, y, z) return Float64(z - fma(x, -3.0, Float64(y * -2.0))) end
code[x_, y_, z_] := N[(z - N[(x * -3.0 + N[(y * -2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z - \mathsf{fma}\left(x, -3, y \cdot -2\right)
\end{array}
Initial program 99.9%
+-commutative99.9%
associate-+l+99.9%
remove-double-neg99.9%
unsub-neg99.9%
+-commutative99.9%
+-commutative99.9%
associate-+l+99.9%
associate-+r+99.9%
associate-+r+99.9%
distribute-neg-in99.9%
distribute-neg-out99.9%
distribute-neg-out99.9%
neg-mul-199.9%
count-299.9%
distribute-lft-neg-in99.9%
metadata-eval99.9%
metadata-eval99.9%
distribute-rgt-out99.9%
fma-def100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(if (<= z -4.8e-11)
z
(if (<= z -1.85e-230)
(* x 3.0)
(if (<= z 4.9e-298)
(* y 2.0)
(if (<= z 3.5e-169) (* x 3.0) (if (<= z 1.22e+183) (* y 2.0) z))))))
double code(double x, double y, double z) {
double tmp;
if (z <= -4.8e-11) {
tmp = z;
} else if (z <= -1.85e-230) {
tmp = x * 3.0;
} else if (z <= 4.9e-298) {
tmp = y * 2.0;
} else if (z <= 3.5e-169) {
tmp = x * 3.0;
} else if (z <= 1.22e+183) {
tmp = y * 2.0;
} else {
tmp = z;
}
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 <= (-4.8d-11)) then
tmp = z
else if (z <= (-1.85d-230)) then
tmp = x * 3.0d0
else if (z <= 4.9d-298) then
tmp = y * 2.0d0
else if (z <= 3.5d-169) then
tmp = x * 3.0d0
else if (z <= 1.22d+183) then
tmp = y * 2.0d0
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (z <= -4.8e-11) {
tmp = z;
} else if (z <= -1.85e-230) {
tmp = x * 3.0;
} else if (z <= 4.9e-298) {
tmp = y * 2.0;
} else if (z <= 3.5e-169) {
tmp = x * 3.0;
} else if (z <= 1.22e+183) {
tmp = y * 2.0;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if z <= -4.8e-11: tmp = z elif z <= -1.85e-230: tmp = x * 3.0 elif z <= 4.9e-298: tmp = y * 2.0 elif z <= 3.5e-169: tmp = x * 3.0 elif z <= 1.22e+183: tmp = y * 2.0 else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if (z <= -4.8e-11) tmp = z; elseif (z <= -1.85e-230) tmp = Float64(x * 3.0); elseif (z <= 4.9e-298) tmp = Float64(y * 2.0); elseif (z <= 3.5e-169) tmp = Float64(x * 3.0); elseif (z <= 1.22e+183) tmp = Float64(y * 2.0); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (z <= -4.8e-11) tmp = z; elseif (z <= -1.85e-230) tmp = x * 3.0; elseif (z <= 4.9e-298) tmp = y * 2.0; elseif (z <= 3.5e-169) tmp = x * 3.0; elseif (z <= 1.22e+183) tmp = y * 2.0; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[z, -4.8e-11], z, If[LessEqual[z, -1.85e-230], N[(x * 3.0), $MachinePrecision], If[LessEqual[z, 4.9e-298], N[(y * 2.0), $MachinePrecision], If[LessEqual[z, 3.5e-169], N[(x * 3.0), $MachinePrecision], If[LessEqual[z, 1.22e+183], N[(y * 2.0), $MachinePrecision], z]]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -4.8 \cdot 10^{-11}:\\
\;\;\;\;z\\
\mathbf{elif}\;z \leq -1.85 \cdot 10^{-230}:\\
\;\;\;\;x \cdot 3\\
\mathbf{elif}\;z \leq 4.9 \cdot 10^{-298}:\\
\;\;\;\;y \cdot 2\\
\mathbf{elif}\;z \leq 3.5 \cdot 10^{-169}:\\
\;\;\;\;x \cdot 3\\
\mathbf{elif}\;z \leq 1.22 \cdot 10^{+183}:\\
\;\;\;\;y \cdot 2\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if z < -4.8000000000000002e-11 or 1.21999999999999991e183 < z Initial program 100.0%
associate-+l+100.0%
associate-+l+100.0%
+-commutative100.0%
count-2100.0%
+-commutative100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in z around inf 70.7%
if -4.8000000000000002e-11 < z < -1.84999999999999991e-230 or 4.9e-298 < z < 3.5000000000000003e-169Initial program 99.8%
associate-+l+99.8%
associate-+l+99.8%
+-commutative99.8%
count-299.8%
+-commutative99.8%
+-commutative99.8%
Simplified99.8%
Taylor expanded in x around inf 65.2%
if -1.84999999999999991e-230 < z < 4.9e-298 or 3.5000000000000003e-169 < z < 1.21999999999999991e183Initial program 99.9%
associate-+l+99.9%
associate-+l+99.9%
+-commutative99.9%
count-299.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
Taylor expanded in y around inf 53.2%
Final simplification63.4%
(FPCore (x y z) :precision binary64 (if (or (<= y -1.25e+90) (not (<= y 6.5e+93))) (- z (* y -2.0)) (+ x (+ z (* x 2.0)))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.25e+90) || !(y <= 6.5e+93)) {
tmp = z - (y * -2.0);
} else {
tmp = x + (z + (x * 2.0));
}
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 <= (-1.25d+90)) .or. (.not. (y <= 6.5d+93))) then
tmp = z - (y * (-2.0d0))
else
tmp = x + (z + (x * 2.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.25e+90) || !(y <= 6.5e+93)) {
tmp = z - (y * -2.0);
} else {
tmp = x + (z + (x * 2.0));
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.25e+90) or not (y <= 6.5e+93): tmp = z - (y * -2.0) else: tmp = x + (z + (x * 2.0)) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.25e+90) || !(y <= 6.5e+93)) tmp = Float64(z - Float64(y * -2.0)); else tmp = Float64(x + Float64(z + Float64(x * 2.0))); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.25e+90) || ~((y <= 6.5e+93))) tmp = z - (y * -2.0); else tmp = x + (z + (x * 2.0)); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.25e+90], N[Not[LessEqual[y, 6.5e+93]], $MachinePrecision]], N[(z - N[(y * -2.0), $MachinePrecision]), $MachinePrecision], N[(x + N[(z + N[(x * 2.0), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.25 \cdot 10^{+90} \lor \neg \left(y \leq 6.5 \cdot 10^{+93}\right):\\
\;\;\;\;z - y \cdot -2\\
\mathbf{else}:\\
\;\;\;\;x + \left(z + x \cdot 2\right)\\
\end{array}
\end{array}
if y < -1.2500000000000001e90 or 6.4999999999999998e93 < y Initial program 99.9%
+-commutative99.9%
associate-+l+99.9%
remove-double-neg99.9%
unsub-neg99.9%
+-commutative99.9%
+-commutative99.9%
associate-+l+99.9%
associate-+r+100.0%
associate-+r+100.0%
distribute-neg-in100.0%
distribute-neg-out100.0%
distribute-neg-out100.0%
neg-mul-1100.0%
count-2100.0%
distribute-lft-neg-in100.0%
metadata-eval100.0%
metadata-eval100.0%
distribute-rgt-out100.0%
fma-def100.0%
Simplified100.0%
Taylor expanded in x around 0 91.1%
if -1.2500000000000001e90 < y < 6.4999999999999998e93Initial program 99.9%
associate-+l+99.9%
associate-+l+99.9%
+-commutative99.9%
count-299.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
Taylor expanded in y around 0 89.6%
Final simplification90.1%
(FPCore (x y z) :precision binary64 (if (or (<= y -5.5e+206) (not (<= y 4.8e+118))) (* y 2.0) (- z (* x -3.0))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -5.5e+206) || !(y <= 4.8e+118)) {
tmp = y * 2.0;
} else {
tmp = z - (x * -3.0);
}
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 <= (-5.5d+206)) .or. (.not. (y <= 4.8d+118))) then
tmp = y * 2.0d0
else
tmp = z - (x * (-3.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -5.5e+206) || !(y <= 4.8e+118)) {
tmp = y * 2.0;
} else {
tmp = z - (x * -3.0);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -5.5e+206) or not (y <= 4.8e+118): tmp = y * 2.0 else: tmp = z - (x * -3.0) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -5.5e+206) || !(y <= 4.8e+118)) tmp = Float64(y * 2.0); else tmp = Float64(z - Float64(x * -3.0)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -5.5e+206) || ~((y <= 4.8e+118))) tmp = y * 2.0; else tmp = z - (x * -3.0); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -5.5e+206], N[Not[LessEqual[y, 4.8e+118]], $MachinePrecision]], N[(y * 2.0), $MachinePrecision], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -5.5 \cdot 10^{+206} \lor \neg \left(y \leq 4.8 \cdot 10^{+118}\right):\\
\;\;\;\;y \cdot 2\\
\mathbf{else}:\\
\;\;\;\;z - x \cdot -3\\
\end{array}
\end{array}
if y < -5.50000000000000021e206 or 4.8e118 < y Initial program 100.0%
associate-+l+100.0%
associate-+l+100.0%
+-commutative100.0%
count-2100.0%
+-commutative100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in y around inf 84.7%
if -5.50000000000000021e206 < y < 4.8e118Initial program 99.9%
+-commutative99.9%
associate-+l+99.9%
remove-double-neg99.9%
unsub-neg99.9%
+-commutative99.9%
+-commutative99.9%
associate-+l+99.9%
associate-+r+99.9%
associate-+r+99.9%
distribute-neg-in99.9%
distribute-neg-out99.9%
distribute-neg-out99.9%
neg-mul-199.9%
count-299.9%
distribute-lft-neg-in99.9%
metadata-eval99.9%
metadata-eval99.9%
distribute-rgt-out99.9%
fma-def100.0%
Simplified100.0%
Taylor expanded in y around 0 86.8%
Final simplification86.3%
(FPCore (x y z) :precision binary64 (if (or (<= y -7.5e+88) (not (<= y 4.8e+97))) (- z (* y -2.0)) (- z (* x -3.0))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -7.5e+88) || !(y <= 4.8e+97)) {
tmp = z - (y * -2.0);
} else {
tmp = z - (x * -3.0);
}
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 <= (-7.5d+88)) .or. (.not. (y <= 4.8d+97))) then
tmp = z - (y * (-2.0d0))
else
tmp = z - (x * (-3.0d0))
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -7.5e+88) || !(y <= 4.8e+97)) {
tmp = z - (y * -2.0);
} else {
tmp = z - (x * -3.0);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -7.5e+88) or not (y <= 4.8e+97): tmp = z - (y * -2.0) else: tmp = z - (x * -3.0) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -7.5e+88) || !(y <= 4.8e+97)) tmp = Float64(z - Float64(y * -2.0)); else tmp = Float64(z - Float64(x * -3.0)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -7.5e+88) || ~((y <= 4.8e+97))) tmp = z - (y * -2.0); else tmp = z - (x * -3.0); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -7.5e+88], N[Not[LessEqual[y, 4.8e+97]], $MachinePrecision]], N[(z - N[(y * -2.0), $MachinePrecision]), $MachinePrecision], N[(z - N[(x * -3.0), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -7.5 \cdot 10^{+88} \lor \neg \left(y \leq 4.8 \cdot 10^{+97}\right):\\
\;\;\;\;z - y \cdot -2\\
\mathbf{else}:\\
\;\;\;\;z - x \cdot -3\\
\end{array}
\end{array}
if y < -7.50000000000000031e88 or 4.8e97 < y Initial program 99.9%
+-commutative99.9%
associate-+l+99.9%
remove-double-neg99.9%
unsub-neg99.9%
+-commutative99.9%
+-commutative99.9%
associate-+l+99.9%
associate-+r+100.0%
associate-+r+100.0%
distribute-neg-in100.0%
distribute-neg-out100.0%
distribute-neg-out100.0%
neg-mul-1100.0%
count-2100.0%
distribute-lft-neg-in100.0%
metadata-eval100.0%
metadata-eval100.0%
distribute-rgt-out100.0%
fma-def100.0%
Simplified100.0%
Taylor expanded in x around 0 91.1%
if -7.50000000000000031e88 < y < 4.8e97Initial program 99.9%
+-commutative99.9%
associate-+l+99.9%
remove-double-neg99.9%
unsub-neg99.9%
+-commutative99.9%
+-commutative99.9%
associate-+l+99.9%
associate-+r+99.9%
associate-+r+99.9%
distribute-neg-in99.9%
distribute-neg-out99.9%
distribute-neg-out99.9%
neg-mul-199.9%
count-299.9%
distribute-lft-neg-in99.9%
metadata-eval99.9%
metadata-eval99.9%
distribute-rgt-out99.9%
fma-def100.0%
Simplified100.0%
Taylor expanded in y around 0 89.6%
Final simplification90.1%
(FPCore (x y z) :precision binary64 (if (or (<= y -3e+117) (not (<= y 5e+111))) (* y 2.0) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -3e+117) || !(y <= 5e+111)) {
tmp = y * 2.0;
} else {
tmp = z;
}
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 <= (-3d+117)) .or. (.not. (y <= 5d+111))) then
tmp = y * 2.0d0
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -3e+117) || !(y <= 5e+111)) {
tmp = y * 2.0;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -3e+117) or not (y <= 5e+111): tmp = y * 2.0 else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -3e+117) || !(y <= 5e+111)) tmp = Float64(y * 2.0); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -3e+117) || ~((y <= 5e+111))) tmp = y * 2.0; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -3e+117], N[Not[LessEqual[y, 5e+111]], $MachinePrecision]], N[(y * 2.0), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3 \cdot 10^{+117} \lor \neg \left(y \leq 5 \cdot 10^{+111}\right):\\
\;\;\;\;y \cdot 2\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -3e117 or 4.9999999999999997e111 < y Initial program 99.9%
associate-+l+99.9%
associate-+l+100.0%
+-commutative100.0%
count-2100.0%
+-commutative100.0%
+-commutative100.0%
Simplified100.0%
Taylor expanded in y around inf 78.3%
if -3e117 < y < 4.9999999999999997e111Initial program 99.9%
associate-+l+99.9%
associate-+l+99.9%
+-commutative99.9%
count-299.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
Taylor expanded in z around inf 46.4%
Final simplification56.0%
(FPCore (x y z) :precision binary64 (+ (* 2.0 (+ x y)) (+ z x)))
double code(double x, double y, double z) {
return (2.0 * (x + y)) + (z + x);
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = (2.0d0 * (x + y)) + (z + x)
end function
public static double code(double x, double y, double z) {
return (2.0 * (x + y)) + (z + x);
}
def code(x, y, z): return (2.0 * (x + y)) + (z + x)
function code(x, y, z) return Float64(Float64(2.0 * Float64(x + y)) + Float64(z + x)) end
function tmp = code(x, y, z) tmp = (2.0 * (x + y)) + (z + x); end
code[x_, y_, z_] := N[(N[(2.0 * N[(x + y), $MachinePrecision]), $MachinePrecision] + N[(z + x), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
2 \cdot \left(x + y\right) + \left(z + x\right)
\end{array}
Initial program 99.9%
associate-+l+99.9%
associate-+l+99.9%
+-commutative99.9%
count-299.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
Final simplification99.9%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 99.9%
associate-+l+99.9%
associate-+l+99.9%
+-commutative99.9%
count-299.9%
+-commutative99.9%
+-commutative99.9%
Simplified99.9%
Taylor expanded in z around inf 36.2%
Final simplification36.2%
herbie shell --seed 2024031
(FPCore (x y z)
:name "Graphics.Rendering.Plot.Render.Plot.Legend:renderLegendInside from plot-0.2.3.4"
:precision binary64
(+ (+ (+ (+ (+ x y) y) x) z) x))