
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- 1.0 x) z)))
double code(double x, double y, double z) {
return (x * y) + ((1.0 - 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 = (x * y) + ((1.0d0 - x) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
def code(x, y, z): return (x * y) + ((1.0 - x) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(1.0 - x) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((1.0 - x) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(1 - x\right) \cdot z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* x y) (* (- 1.0 x) z)))
double code(double x, double y, double z) {
return (x * y) + ((1.0 - 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 = (x * y) + ((1.0d0 - x) * z)
end function
public static double code(double x, double y, double z) {
return (x * y) + ((1.0 - x) * z);
}
def code(x, y, z): return (x * y) + ((1.0 - x) * z)
function code(x, y, z) return Float64(Float64(x * y) + Float64(Float64(1.0 - x) * z)) end
function tmp = code(x, y, z) tmp = (x * y) + ((1.0 - x) * z); end
code[x_, y_, z_] := N[(N[(x * y), $MachinePrecision] + N[(N[(1.0 - x), $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x \cdot y + \left(1 - x\right) \cdot z
\end{array}
(FPCore (x y z) :precision binary64 (fma x (- y z) z))
double code(double x, double y, double z) {
return fma(x, (y - z), z);
}
function code(x, y, z) return fma(x, Float64(y - z), z) end
code[x_, y_, z_] := N[(x * N[(y - z), $MachinePrecision] + z), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(x, y - z, z\right)
\end{array}
Initial program 96.1%
*-commutative96.1%
distribute-lft-out--96.1%
*-rgt-identity96.1%
cancel-sign-sub-inv96.1%
+-commutative96.1%
associate-+r+96.1%
+-commutative96.1%
*-commutative96.1%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z))))
(if (<= x -6.5e+265)
(* x y)
(if (<= x -5.5e+160)
t_0
(if (<= x -3.2e+117)
(* x y)
(if (<= x -1.15e+90)
t_0
(if (<= x -1.86e-69)
(* x y)
(if (<= x 1.65e-24) z (if (<= x 2.7e+48) (* x y) t_0)))))))))
double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (x <= -6.5e+265) {
tmp = x * y;
} else if (x <= -5.5e+160) {
tmp = t_0;
} else if (x <= -3.2e+117) {
tmp = x * y;
} else if (x <= -1.15e+90) {
tmp = t_0;
} else if (x <= -1.86e-69) {
tmp = x * y;
} else if (x <= 1.65e-24) {
tmp = z;
} else if (x <= 2.7e+48) {
tmp = x * 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 = x * -z
if (x <= (-6.5d+265)) then
tmp = x * y
else if (x <= (-5.5d+160)) then
tmp = t_0
else if (x <= (-3.2d+117)) then
tmp = x * y
else if (x <= (-1.15d+90)) then
tmp = t_0
else if (x <= (-1.86d-69)) then
tmp = x * y
else if (x <= 1.65d-24) then
tmp = z
else if (x <= 2.7d+48) then
tmp = x * y
else
tmp = t_0
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = x * -z;
double tmp;
if (x <= -6.5e+265) {
tmp = x * y;
} else if (x <= -5.5e+160) {
tmp = t_0;
} else if (x <= -3.2e+117) {
tmp = x * y;
} else if (x <= -1.15e+90) {
tmp = t_0;
} else if (x <= -1.86e-69) {
tmp = x * y;
} else if (x <= 1.65e-24) {
tmp = z;
} else if (x <= 2.7e+48) {
tmp = x * y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * -z tmp = 0 if x <= -6.5e+265: tmp = x * y elif x <= -5.5e+160: tmp = t_0 elif x <= -3.2e+117: tmp = x * y elif x <= -1.15e+90: tmp = t_0 elif x <= -1.86e-69: tmp = x * y elif x <= 1.65e-24: tmp = z elif x <= 2.7e+48: tmp = x * y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(-z)) tmp = 0.0 if (x <= -6.5e+265) tmp = Float64(x * y); elseif (x <= -5.5e+160) tmp = t_0; elseif (x <= -3.2e+117) tmp = Float64(x * y); elseif (x <= -1.15e+90) tmp = t_0; elseif (x <= -1.86e-69) tmp = Float64(x * y); elseif (x <= 1.65e-24) tmp = z; elseif (x <= 2.7e+48) tmp = Float64(x * y); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * -z; tmp = 0.0; if (x <= -6.5e+265) tmp = x * y; elseif (x <= -5.5e+160) tmp = t_0; elseif (x <= -3.2e+117) tmp = x * y; elseif (x <= -1.15e+90) tmp = t_0; elseif (x <= -1.86e-69) tmp = x * y; elseif (x <= 1.65e-24) tmp = z; elseif (x <= 2.7e+48) tmp = x * y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * (-z)), $MachinePrecision]}, If[LessEqual[x, -6.5e+265], N[(x * y), $MachinePrecision], If[LessEqual[x, -5.5e+160], t$95$0, If[LessEqual[x, -3.2e+117], N[(x * y), $MachinePrecision], If[LessEqual[x, -1.15e+90], t$95$0, If[LessEqual[x, -1.86e-69], N[(x * y), $MachinePrecision], If[LessEqual[x, 1.65e-24], z, If[LessEqual[x, 2.7e+48], N[(x * y), $MachinePrecision], t$95$0]]]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(-z\right)\\
\mathbf{if}\;x \leq -6.5 \cdot 10^{+265}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq -5.5 \cdot 10^{+160}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq -3.2 \cdot 10^{+117}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq -1.15 \cdot 10^{+90}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq -1.86 \cdot 10^{-69}:\\
\;\;\;\;x \cdot y\\
\mathbf{elif}\;x \leq 1.65 \cdot 10^{-24}:\\
\;\;\;\;z\\
\mathbf{elif}\;x \leq 2.7 \cdot 10^{+48}:\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -6.50000000000000034e265 or -5.5e160 < x < -3.20000000000000005e117 or -1.15e90 < x < -1.86e-69 or 1.64999999999999992e-24 < x < 2.70000000000000004e48Initial program 97.0%
*-commutative97.0%
distribute-lft-out--97.0%
*-rgt-identity97.0%
cancel-sign-sub-inv97.0%
+-commutative97.0%
associate-+r+97.0%
+-commutative97.0%
*-commutative97.0%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 67.0%
if -6.50000000000000034e265 < x < -5.5e160 or -3.20000000000000005e117 < x < -1.15e90 or 2.70000000000000004e48 < x Initial program 91.0%
*-commutative91.0%
distribute-lft-out--91.0%
*-rgt-identity91.0%
cancel-sign-sub-inv91.0%
+-commutative91.0%
associate-+r+91.0%
+-commutative91.0%
*-commutative91.0%
distribute-rgt-out99.9%
fma-define99.9%
+-commutative99.9%
unsub-neg99.9%
Simplified99.9%
Taylor expanded in x around inf 99.9%
Taylor expanded in y around 0 67.0%
associate-*r*67.0%
mul-1-neg67.0%
Simplified67.0%
if -1.86e-69 < x < 1.64999999999999992e-24Initial program 100.0%
*-commutative100.0%
distribute-lft-out--100.0%
*-rgt-identity100.0%
cancel-sign-sub-inv100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
*-commutative100.0%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 75.8%
Final simplification70.4%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.7e-68) (not (<= x 1.2e-24))) (* x (- y z)) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-68) || !(x <= 1.2e-24)) {
tmp = x * (y - 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 ((x <= (-1.7d-68)) .or. (.not. (x <= 1.2d-24))) then
tmp = x * (y - z)
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-68) || !(x <= 1.2e-24)) {
tmp = x * (y - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.7e-68) or not (x <= 1.2e-24): tmp = x * (y - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.7e-68) || !(x <= 1.2e-24)) tmp = Float64(x * Float64(y - z)); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.7e-68) || ~((x <= 1.2e-24))) tmp = x * (y - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.7e-68], N[Not[LessEqual[x, 1.2e-24]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.7 \cdot 10^{-68} \lor \neg \left(x \leq 1.2 \cdot 10^{-24}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -1.70000000000000009e-68 or 1.1999999999999999e-24 < x Initial program 93.6%
*-commutative93.6%
distribute-lft-out--93.6%
*-rgt-identity93.6%
cancel-sign-sub-inv93.6%
+-commutative93.6%
associate-+r+93.6%
+-commutative93.6%
*-commutative93.6%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around inf 96.5%
if -1.70000000000000009e-68 < x < 1.1999999999999999e-24Initial program 100.0%
*-commutative100.0%
distribute-lft-out--100.0%
*-rgt-identity100.0%
cancel-sign-sub-inv100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
*-commutative100.0%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 75.8%
Final simplification88.5%
(FPCore (x y z) :precision binary64 (if (or (<= x -9e+15) (not (<= x 4.2e-7))) (* x (- y z)) (+ z (* x y))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -9e+15) || !(x <= 4.2e-7)) {
tmp = x * (y - z);
} 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 ((x <= (-9d+15)) .or. (.not. (x <= 4.2d-7))) then
tmp = x * (y - z)
else
tmp = z + (x * y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -9e+15) || !(x <= 4.2e-7)) {
tmp = x * (y - z);
} else {
tmp = z + (x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -9e+15) or not (x <= 4.2e-7): tmp = x * (y - z) else: tmp = z + (x * y) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -9e+15) || !(x <= 4.2e-7)) tmp = Float64(x * Float64(y - z)); else tmp = Float64(z + Float64(x * y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -9e+15) || ~((x <= 4.2e-7))) tmp = x * (y - z); else tmp = z + (x * y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -9e+15], N[Not[LessEqual[x, 4.2e-7]], $MachinePrecision]], N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision], N[(z + N[(x * y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -9 \cdot 10^{+15} \lor \neg \left(x \leq 4.2 \cdot 10^{-7}\right):\\
\;\;\;\;x \cdot \left(y - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + x \cdot y\\
\end{array}
\end{array}
if x < -9e15 or 4.2e-7 < x Initial program 92.9%
*-commutative92.9%
distribute-lft-out--92.9%
*-rgt-identity92.9%
cancel-sign-sub-inv92.9%
+-commutative92.9%
associate-+r+92.9%
+-commutative92.9%
*-commutative92.9%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around inf 99.9%
if -9e15 < x < 4.2e-7Initial program 100.0%
+-commutative100.0%
remove-double-neg100.0%
distribute-rgt-neg-out100.0%
neg-sub0100.0%
neg-sub0100.0%
*-commutative100.0%
distribute-lft-neg-in100.0%
remove-double-neg100.0%
distribute-rgt-out--100.0%
*-lft-identity100.0%
associate-+l-100.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in z around 0 99.5%
mul-1-neg99.5%
*-commutative99.5%
distribute-rgt-neg-in99.5%
Simplified99.5%
*-commutative99.5%
cancel-sign-sub99.5%
*-commutative99.5%
+-commutative99.5%
*-commutative99.5%
Applied egg-rr99.5%
Final simplification99.7%
(FPCore (x y z) :precision binary64 (if (or (<= x -1.7e-68) (not (<= x 7e-24))) (* x y) z))
double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-68) || !(x <= 7e-24)) {
tmp = x * y;
} 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 ((x <= (-1.7d-68)) .or. (.not. (x <= 7d-24))) then
tmp = x * y
else
tmp = z
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -1.7e-68) || !(x <= 7e-24)) {
tmp = x * y;
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -1.7e-68) or not (x <= 7e-24): tmp = x * y else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -1.7e-68) || !(x <= 7e-24)) tmp = Float64(x * y); else tmp = z; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -1.7e-68) || ~((x <= 7e-24))) tmp = x * y; else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -1.7e-68], N[Not[LessEqual[x, 7e-24]], $MachinePrecision]], N[(x * y), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.7 \cdot 10^{-68} \lor \neg \left(x \leq 7 \cdot 10^{-24}\right):\\
\;\;\;\;x \cdot y\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if x < -1.70000000000000009e-68 or 6.9999999999999993e-24 < x Initial program 93.6%
*-commutative93.6%
distribute-lft-out--93.6%
*-rgt-identity93.6%
cancel-sign-sub-inv93.6%
+-commutative93.6%
associate-+r+93.6%
+-commutative93.6%
*-commutative93.6%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around inf 49.6%
if -1.70000000000000009e-68 < x < 6.9999999999999993e-24Initial program 100.0%
*-commutative100.0%
distribute-lft-out--100.0%
*-rgt-identity100.0%
cancel-sign-sub-inv100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
*-commutative100.0%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 75.8%
Final simplification59.7%
(FPCore (x y z) :precision binary64 (+ z (* x (- y z))))
double code(double x, double y, double z) {
return z + (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 = z + (x * (y - z))
end function
public static double code(double x, double y, double z) {
return z + (x * (y - z));
}
def code(x, y, z): return z + (x * (y - z))
function code(x, y, z) return Float64(z + Float64(x * Float64(y - z))) end
function tmp = code(x, y, z) tmp = z + (x * (y - z)); end
code[x_, y_, z_] := N[(z + N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
z + x \cdot \left(y - z\right)
\end{array}
Initial program 96.1%
+-commutative96.1%
remove-double-neg96.1%
distribute-rgt-neg-out96.1%
neg-sub096.1%
neg-sub096.1%
*-commutative96.1%
distribute-lft-neg-in96.1%
remove-double-neg96.1%
distribute-rgt-out--96.1%
*-lft-identity96.1%
associate-+l-96.1%
distribute-lft-out--100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 z)
double code(double x, double y, double z) {
return z;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = z
end function
public static double code(double x, double y, double z) {
return z;
}
def code(x, y, z): return z
function code(x, y, z) return z end
function tmp = code(x, y, z) tmp = z; end
code[x_, y_, z_] := z
\begin{array}{l}
\\
z
\end{array}
Initial program 96.1%
*-commutative96.1%
distribute-lft-out--96.1%
*-rgt-identity96.1%
cancel-sign-sub-inv96.1%
+-commutative96.1%
associate-+r+96.1%
+-commutative96.1%
*-commutative96.1%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 32.8%
Final simplification32.8%
herbie shell --seed 2024071
(FPCore (x y z)
:name "Diagrams.Backend.Rasterific:$crender from diagrams-rasterific-1.3.1.3"
:precision binary64
(+ (* x y) (* (- 1.0 x) z)))