
(FPCore (x y z) :precision binary64 (+ (* x y) (* z (- 1.0 y))))
double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - 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 * (1.0d0 - y))
end function
public static double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
def code(x, y, z): return (x * y) + (z * (1.0 - y))
function code(x, y, z) return Float64(Float64(x * y) + Float64(z * Float64(1.0 - y))) end
function tmp = code(x, y, z) tmp = (x * y) + (z * (1.0 - y)); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + z \cdot \left(1 - y\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* z (- 1.0 y))))
double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - 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 * (1.0d0 - y))
end function
public static double code(double x, double y, double z) {
return (x * y) + (z * (1.0 - y));
}
def code(x, y, z): return (x * y) + (z * (1.0 - y))
function code(x, y, z) return Float64(Float64(x * y) + Float64(z * Float64(1.0 - y))) end
function tmp = code(x, y, z) tmp = (x * y) + (z * (1.0 - y)); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + z \cdot \left(1 - y\right)
\end{array}
(FPCore (x y z) :precision binary64 (fma y (- x z) z))
double code(double x, double y, double z) {
return fma(y, (x - z), z);
}
function code(x, y, z) return fma(y, Float64(x - z), z) end
code[x_, y_, z_] := N[(y * N[(x - z), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(y, x - z, z\right)
\end{array}
Initial program 97.2%
distribute-lft-out--97.2%
*-rgt-identity97.2%
cancel-sign-sub-inv97.2%
+-commutative97.2%
associate-+r+97.3%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- x z))))
(if (<= y -2.2e-54)
t_0
(if (<= y 1.75e-78)
z
(if (<= y 9.5e-40) (* y x) (if (<= y 4.8e-6) (* z (- 1.0 y)) t_0))))))
double code(double x, double y, double z) {
double t_0 = y * (x - z);
double tmp;
if (y <= -2.2e-54) {
tmp = t_0;
} else if (y <= 1.75e-78) {
tmp = z;
} else if (y <= 9.5e-40) {
tmp = y * x;
} else if (y <= 4.8e-6) {
tmp = z * (1.0 - y);
} else {
tmp = t_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) :: t_0
real(8) :: tmp
t_0 = y * (x - z)
if (y <= (-2.2d-54)) then
tmp = t_0
else if (y <= 1.75d-78) then
tmp = z
else if (y <= 9.5d-40) then
tmp = y * x
else if (y <= 4.8d-6) then
tmp = z * (1.0d0 - y)
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = y * (x - z);
double tmp;
if (y <= -2.2e-54) {
tmp = t_0;
} else if (y <= 1.75e-78) {
tmp = z;
} else if (y <= 9.5e-40) {
tmp = y * x;
} else if (y <= 4.8e-6) {
tmp = z * (1.0 - y);
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * (x - z) tmp = 0 if y <= -2.2e-54: tmp = t_0 elif y <= 1.75e-78: tmp = z elif y <= 9.5e-40: tmp = y * x elif y <= 4.8e-6: tmp = z * (1.0 - y) else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(x - z)) tmp = 0.0 if (y <= -2.2e-54) tmp = t_0; elseif (y <= 1.75e-78) tmp = z; elseif (y <= 9.5e-40) tmp = Float64(y * x); elseif (y <= 4.8e-6) tmp = Float64(z * Float64(1.0 - y)); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * (x - z); tmp = 0.0; if (y <= -2.2e-54) tmp = t_0; elseif (y <= 1.75e-78) tmp = z; elseif (y <= 9.5e-40) tmp = y * x; elseif (y <= 4.8e-6) tmp = z * (1.0 - y); else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[y, -2.2e-54], t$95$0, If[LessEqual[y, 1.75e-78], z, If[LessEqual[y, 9.5e-40], N[(y * x), $MachinePrecision], If[LessEqual[y, 4.8e-6], N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision], t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(x - z\right)\\
\mathbf{if}\;y \leq -2.2 \cdot 10^{-54}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;y \leq 1.75 \cdot 10^{-78}:\\
\;\;\;\;z\\
\mathbf{elif}\;y \leq 9.5 \cdot 10^{-40}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 4.8 \cdot 10^{-6}:\\
\;\;\;\;z \cdot \left(1 - y\right)\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if y < -2.2e-54 or 4.7999999999999998e-6 < y Initial program 95.3%
distribute-lft-out--95.3%
*-rgt-identity95.3%
cancel-sign-sub-inv95.3%
+-commutative95.3%
associate-+r+95.3%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 96.6%
if -2.2e-54 < y < 1.75e-78Initial program 100.0%
Taylor expanded in y around 0 85.0%
if 1.75e-78 < y < 9.5000000000000006e-40Initial program 100.0%
Taylor expanded in x around inf 100.0%
*-commutative100.0%
Simplified100.0%
if 9.5000000000000006e-40 < y < 4.7999999999999998e-6Initial program 99.7%
Taylor expanded in x around 0 78.9%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- z))))
(if (<= y -4.5e+168)
(* y x)
(if (<= y -2.02e+62)
t_0
(if (<= y -1.45e-35) (* y x) (if (<= y 1.0) z t_0))))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (y <= -4.5e+168) {
tmp = y * x;
} else if (y <= -2.02e+62) {
tmp = t_0;
} else if (y <= -1.45e-35) {
tmp = y * x;
} else if (y <= 1.0) {
tmp = z;
} else {
tmp = t_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) :: t_0
real(8) :: tmp
t_0 = y * -z
if (y <= (-4.5d+168)) then
tmp = y * x
else if (y <= (-2.02d+62)) then
tmp = t_0
else if (y <= (-1.45d-35)) then
tmp = y * x
else if (y <= 1.0d0) then
tmp = z
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (y <= -4.5e+168) {
tmp = y * x;
} else if (y <= -2.02e+62) {
tmp = t_0;
} else if (y <= -1.45e-35) {
tmp = y * x;
} else if (y <= 1.0) {
tmp = z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z tmp = 0 if y <= -4.5e+168: tmp = y * x elif y <= -2.02e+62: tmp = t_0 elif y <= -1.45e-35: tmp = y * x elif y <= 1.0: tmp = z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-z)) tmp = 0.0 if (y <= -4.5e+168) tmp = Float64(y * x); elseif (y <= -2.02e+62) tmp = t_0; elseif (y <= -1.45e-35) tmp = Float64(y * x); elseif (y <= 1.0) tmp = z; else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -z; tmp = 0.0; if (y <= -4.5e+168) tmp = y * x; elseif (y <= -2.02e+62) tmp = t_0; elseif (y <= -1.45e-35) tmp = y * x; elseif (y <= 1.0) tmp = z; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -4.5e+168], N[(y * x), $MachinePrecision], If[LessEqual[y, -2.02e+62], t$95$0, If[LessEqual[y, -1.45e-35], N[(y * x), $MachinePrecision], If[LessEqual[y, 1.0], z, t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -4.5 \cdot 10^{+168}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -2.02 \cdot 10^{+62}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;y \leq -1.45 \cdot 10^{-35}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 1:\\
\;\;\;\;z\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if y < -4.50000000000000012e168 or -2.0200000000000001e62 < y < -1.4500000000000001e-35Initial program 96.8%
Taylor expanded in x around inf 61.5%
*-commutative61.5%
Simplified61.5%
if -4.50000000000000012e168 < y < -2.0200000000000001e62 or 1 < y Initial program 93.7%
distribute-lft-out--93.7%
*-rgt-identity93.7%
cancel-sign-sub-inv93.7%
+-commutative93.7%
associate-+r+93.7%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 99.5%
Taylor expanded in x around 0 62.9%
mul-1-neg62.9%
*-commutative62.9%
distribute-rgt-neg-in62.9%
Simplified62.9%
if -1.4500000000000001e-35 < y < 1Initial program 100.0%
Taylor expanded in y around 0 76.3%
Final simplification68.6%
(FPCore (x y z) :precision binary64 (if (or (<= y -5500.0) (not (<= y 1.26e-5))) (* y (- x z)) (+ z (* y x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -5500.0) || !(y <= 1.26e-5)) {
tmp = y * (x - z);
} 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 ((y <= (-5500.0d0)) .or. (.not. (y <= 1.26d-5))) then
tmp = y * (x - z)
else
tmp = z + (y * x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -5500.0) || !(y <= 1.26e-5)) {
tmp = y * (x - z);
} else {
tmp = z + (y * x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -5500.0) or not (y <= 1.26e-5): tmp = y * (x - z) else: tmp = z + (y * x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -5500.0) || !(y <= 1.26e-5)) tmp = Float64(y * Float64(x - z)); else tmp = Float64(z + Float64(y * x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -5500.0) || ~((y <= 1.26e-5))) tmp = y * (x - z); else tmp = z + (y * x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -5500.0], N[Not[LessEqual[y, 1.26e-5]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], N[(z + N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -5500 \lor \neg \left(y \leq 1.26 \cdot 10^{-5}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + y \cdot x\\
\end{array}
\end{array}
if y < -5500 or 1.25999999999999996e-5 < y Initial program 94.7%
distribute-lft-out--94.7%
*-rgt-identity94.7%
cancel-sign-sub-inv94.7%
+-commutative94.7%
associate-+r+94.7%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 99.7%
if -5500 < y < 1.25999999999999996e-5Initial program 100.0%
Taylor expanded in y around 0 98.4%
Final simplification99.1%
(FPCore (x y z) :precision binary64 (if (or (<= y -8.5e-56) (not (<= y 1.32e-76))) (* y (- x z)) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -8.5e-56) || !(y <= 1.32e-76)) {
tmp = y * (x - z);
} 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 <= (-8.5d-56)) .or. (.not. (y <= 1.32d-76))) then
tmp = y * (x - z)
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -8.5e-56) || !(y <= 1.32e-76)) {
tmp = y * (x - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -8.5e-56) or not (y <= 1.32e-76): tmp = y * (x - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -8.5e-56) || !(y <= 1.32e-76)) tmp = Float64(y * Float64(x - z)); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -8.5e-56) || ~((y <= 1.32e-76))) tmp = y * (x - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -8.5e-56], N[Not[LessEqual[y, 1.32e-76]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -8.5 \cdot 10^{-56} \lor \neg \left(y \leq 1.32 \cdot 10^{-76}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -8.49999999999999932e-56 or 1.31999999999999996e-76 < y Initial program 95.7%
distribute-lft-out--95.7%
*-rgt-identity95.7%
cancel-sign-sub-inv95.7%
+-commutative95.7%
associate-+r+95.7%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 91.5%
if -8.49999999999999932e-56 < y < 1.31999999999999996e-76Initial program 100.0%
Taylor expanded in y around 0 85.0%
Final simplification89.2%
(FPCore (x y z) :precision binary64 (if (or (<= y -3.7e-31) (not (<= y 1.2e-76))) (* y x) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -3.7e-31) || !(y <= 1.2e-76)) {
tmp = y * x;
} 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 <= (-3.7d-31)) .or. (.not. (y <= 1.2d-76))) then
tmp = y * x
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -3.7e-31) || !(y <= 1.2e-76)) {
tmp = y * x;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -3.7e-31) or not (y <= 1.2e-76): tmp = y * x else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -3.7e-31) || !(y <= 1.2e-76)) tmp = Float64(y * x); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -3.7e-31) || ~((y <= 1.2e-76))) tmp = y * x; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -3.7e-31], N[Not[LessEqual[y, 1.2e-76]], $MachinePrecision]], N[(y * x), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.7 \cdot 10^{-31} \lor \neg \left(y \leq 1.2 \cdot 10^{-76}\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -3.6999999999999998e-31 or 1.20000000000000007e-76 < y Initial program 95.6%
Taylor expanded in x around inf 51.9%
*-commutative51.9%
Simplified51.9%
if -3.6999999999999998e-31 < y < 1.20000000000000007e-76Initial program 100.0%
Taylor expanded in y around 0 83.0%
Final simplification63.7%
(FPCore (x y z) :precision binary64 (+ z (* y (- x z))))
double code(double x, double y, double z) {
return z + (y * (x - 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 + (y * (x - z))
end function
public static double code(double x, double y, double z) {
return z + (y * (x - z));
}
def code(x, y, z): return z + (y * (x - z))
function code(x, y, z) return Float64(z + Float64(y * Float64(x - z))) end
function tmp = code(x, y, z) tmp = z + (y * (x - z)); end
code[x_, y_, z_] := N[(z + N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + y \cdot \left(x - z\right)
\end{array}
Initial program 97.2%
distribute-lft-out--97.2%
*-rgt-identity97.2%
cancel-sign-sub-inv97.2%
+-commutative97.2%
associate-+r+97.3%
distribute-rgt-out100.0%
+-commutative100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
fma-undefine100.0%
Applied egg-rr100.0%
Final simplification100.0%
(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 97.2%
Taylor expanded in y around 0 36.7%
(FPCore (x y z) :precision binary64 (- z (* (- z x) y)))
double code(double x, double y, double z) {
return z - ((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 = z - ((z - x) * y)
end function
public static double code(double x, double y, double z) {
return z - ((z - x) * y);
}
def code(x, y, z): return z - ((z - x) * y)
function code(x, y, z) return Float64(z - Float64(Float64(z - x) * y)) end
function tmp = code(x, y, z) tmp = z - ((z - x) * y); end
code[x_, y_, z_] := N[(z - N[(N[(z - x), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z - \left(z - x\right) \cdot y
\end{array}
herbie shell --seed 2024097
(FPCore (x y z)
:name "Diagrams.TwoD.Segment:bezierClip from diagrams-lib-1.3.0.3"
:precision binary64
:alt
(- z (* (- z x) y))
(+ (* x y) (* z (- 1.0 y))))