
(FPCore (x y z) :precision binary64 (+ (* (- 1.0 x) y) (* x z)))
double code(double x, double y, double z) {
return ((1.0 - x) * 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 = ((1.0d0 - x) * y) + (x * z)
end function
public static double code(double x, double y, double z) {
return ((1.0 - x) * y) + (x * z);
}
def code(x, y, z): return ((1.0 - x) * y) + (x * z)
function code(x, y, z) return Float64(Float64(Float64(1.0 - x) * y) + Float64(x * z)) end
function tmp = code(x, y, z) tmp = ((1.0 - x) * y) + (x * z); end
code[x_, y_, z_] := N[(N[(N[(1.0 - x), $MachinePrecision] * y), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) \cdot y + x \cdot z
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 7 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ (* (- 1.0 x) y) (* x z)))
double code(double x, double y, double z) {
return ((1.0 - x) * 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 = ((1.0d0 - x) * y) + (x * z)
end function
public static double code(double x, double y, double z) {
return ((1.0 - x) * y) + (x * z);
}
def code(x, y, z): return ((1.0 - x) * y) + (x * z)
function code(x, y, z) return Float64(Float64(Float64(1.0 - x) * y) + Float64(x * z)) end
function tmp = code(x, y, z) tmp = ((1.0 - x) * y) + (x * z); end
code[x_, y_, z_] := N[(N[(N[(1.0 - x), $MachinePrecision] * y), $MachinePrecision] + N[(x * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
\left(1 - x\right) \cdot y + x \cdot z
\end{array}
(FPCore (x y z) :precision binary64 (fma x (- z y) y))
double code(double x, double y, double z) {
return fma(x, (z - y), y);
}
function code(x, y, z) return fma(x, Float64(z - y), y) end
code[x_, y_, z_] := N[(x * N[(z - y), $MachinePrecision] + y), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(x, z - y, y\right)
\end{array}
Initial program 95.7%
*-commutative95.7%
distribute-lft-out--95.7%
*-rgt-identity95.7%
cancel-sign-sub-inv95.7%
associate-+l+95.7%
+-commutative95.7%
*-commutative95.7%
distribute-rgt-out100.0%
fma-define100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(if (<= x -1.85e-16)
(* x z)
(if (<= x 1.55e-122)
y
(if (<= x 1.3e-44)
(* x z)
(if (<= x 0.0034) y (if (<= x 4.2e+226) (* x z) (- (* x y))))))))
double code(double x, double y, double z) {
double tmp;
if (x <= -1.85e-16) {
tmp = x * z;
} else if (x <= 1.55e-122) {
tmp = y;
} else if (x <= 1.3e-44) {
tmp = x * z;
} else if (x <= 0.0034) {
tmp = y;
} else if (x <= 4.2e+226) {
tmp = x * z;
} else {
tmp = -(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 <= (-1.85d-16)) then
tmp = x * z
else if (x <= 1.55d-122) then
tmp = y
else if (x <= 1.3d-44) then
tmp = x * z
else if (x <= 0.0034d0) then
tmp = y
else if (x <= 4.2d+226) then
tmp = x * z
else
tmp = -(x * y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (x <= -1.85e-16) {
tmp = x * z;
} else if (x <= 1.55e-122) {
tmp = y;
} else if (x <= 1.3e-44) {
tmp = x * z;
} else if (x <= 0.0034) {
tmp = y;
} else if (x <= 4.2e+226) {
tmp = x * z;
} else {
tmp = -(x * y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if x <= -1.85e-16: tmp = x * z elif x <= 1.55e-122: tmp = y elif x <= 1.3e-44: tmp = x * z elif x <= 0.0034: tmp = y elif x <= 4.2e+226: tmp = x * z else: tmp = -(x * y) return tmp
function code(x, y, z) tmp = 0.0 if (x <= -1.85e-16) tmp = Float64(x * z); elseif (x <= 1.55e-122) tmp = y; elseif (x <= 1.3e-44) tmp = Float64(x * z); elseif (x <= 0.0034) tmp = y; elseif (x <= 4.2e+226) tmp = Float64(x * z); else tmp = Float64(-Float64(x * y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (x <= -1.85e-16) tmp = x * z; elseif (x <= 1.55e-122) tmp = y; elseif (x <= 1.3e-44) tmp = x * z; elseif (x <= 0.0034) tmp = y; elseif (x <= 4.2e+226) tmp = x * z; else tmp = -(x * y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[x, -1.85e-16], N[(x * z), $MachinePrecision], If[LessEqual[x, 1.55e-122], y, If[LessEqual[x, 1.3e-44], N[(x * z), $MachinePrecision], If[LessEqual[x, 0.0034], y, If[LessEqual[x, 4.2e+226], N[(x * z), $MachinePrecision], (-N[(x * y), $MachinePrecision])]]]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -1.85 \cdot 10^{-16}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x \leq 1.55 \cdot 10^{-122}:\\
\;\;\;\;y\\
\mathbf{elif}\;x \leq 1.3 \cdot 10^{-44}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x \leq 0.0034:\\
\;\;\;\;y\\
\mathbf{elif}\;x \leq 4.2 \cdot 10^{+226}:\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;-x \cdot y\\
\end{array}
\end{array}
if x < -1.85e-16 or 1.5499999999999999e-122 < x < 1.2999999999999999e-44 or 0.00339999999999999981 < x < 4.19999999999999986e226Initial program 95.0%
remove-double-neg95.0%
distribute-rgt-neg-out95.0%
neg-sub095.0%
neg-sub095.0%
*-commutative95.0%
distribute-lft-neg-in95.0%
remove-double-neg95.0%
distribute-rgt-out--95.0%
*-lft-identity95.0%
associate-+l-95.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in y around 0 58.6%
if -1.85e-16 < x < 1.5499999999999999e-122 or 1.2999999999999999e-44 < x < 0.00339999999999999981Initial program 100.0%
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 x around 0 77.0%
if 4.19999999999999986e226 < x Initial program 75.0%
remove-double-neg75.0%
distribute-rgt-neg-out75.0%
neg-sub075.0%
neg-sub075.0%
*-commutative75.0%
distribute-lft-neg-in75.0%
remove-double-neg75.0%
distribute-rgt-out--75.0%
*-lft-identity75.0%
associate-+l-75.0%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 100.0%
Taylor expanded in z around 0 76.1%
associate-*r*76.1%
mul-1-neg76.1%
Simplified76.1%
Final simplification68.3%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* x (- z y))))
(if (<= x -2.5e-17)
t_0
(if (<= x 1.6e-122)
y
(if (<= x 9e-49) (* x z) (if (<= x 0.0035) y t_0))))))
double code(double x, double y, double z) {
double t_0 = x * (z - y);
double tmp;
if (x <= -2.5e-17) {
tmp = t_0;
} else if (x <= 1.6e-122) {
tmp = y;
} else if (x <= 9e-49) {
tmp = x * z;
} else if (x <= 0.0035) {
tmp = 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 - y)
if (x <= (-2.5d-17)) then
tmp = t_0
else if (x <= 1.6d-122) then
tmp = y
else if (x <= 9d-49) then
tmp = x * z
else if (x <= 0.0035d0) then
tmp = 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 - y);
double tmp;
if (x <= -2.5e-17) {
tmp = t_0;
} else if (x <= 1.6e-122) {
tmp = y;
} else if (x <= 9e-49) {
tmp = x * z;
} else if (x <= 0.0035) {
tmp = y;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = x * (z - y) tmp = 0 if x <= -2.5e-17: tmp = t_0 elif x <= 1.6e-122: tmp = y elif x <= 9e-49: tmp = x * z elif x <= 0.0035: tmp = y else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(x * Float64(z - y)) tmp = 0.0 if (x <= -2.5e-17) tmp = t_0; elseif (x <= 1.6e-122) tmp = y; elseif (x <= 9e-49) tmp = Float64(x * z); elseif (x <= 0.0035) tmp = y; else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = x * (z - y); tmp = 0.0; if (x <= -2.5e-17) tmp = t_0; elseif (x <= 1.6e-122) tmp = y; elseif (x <= 9e-49) tmp = x * z; elseif (x <= 0.0035) tmp = y; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(x * N[(z - y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[x, -2.5e-17], t$95$0, If[LessEqual[x, 1.6e-122], y, If[LessEqual[x, 9e-49], N[(x * z), $MachinePrecision], If[LessEqual[x, 0.0035], y, t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := x \cdot \left(z - y\right)\\
\mathbf{if}\;x \leq -2.5 \cdot 10^{-17}:\\
\;\;\;\;t\_0\\
\mathbf{elif}\;x \leq 1.6 \cdot 10^{-122}:\\
\;\;\;\;y\\
\mathbf{elif}\;x \leq 9 \cdot 10^{-49}:\\
\;\;\;\;x \cdot z\\
\mathbf{elif}\;x \leq 0.0035:\\
\;\;\;\;y\\
\mathbf{else}:\\
\;\;\;\;t\_0\\
\end{array}
\end{array}
if x < -2.4999999999999999e-17 or 0.00350000000000000007 < x Initial program 91.6%
remove-double-neg91.6%
distribute-rgt-neg-out91.6%
neg-sub091.6%
neg-sub091.6%
*-commutative91.6%
distribute-lft-neg-in91.6%
remove-double-neg91.6%
distribute-rgt-out--91.6%
*-lft-identity91.6%
associate-+l-91.6%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 98.1%
if -2.4999999999999999e-17 < x < 1.6000000000000001e-122 or 9.0000000000000004e-49 < x < 0.00350000000000000007Initial program 100.0%
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 x around 0 77.0%
if 1.6000000000000001e-122 < x < 9.0000000000000004e-49Initial program 100.0%
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 y around 0 78.4%
Final simplification87.9%
(FPCore (x y z)
:precision binary64
(if (or (<= x -5.6e-17)
(and (not (<= x 1.6e-122)) (or (<= x 2.4e-47) (not (<= x 0.0034)))))
(* x z)
y))
double code(double x, double y, double z) {
double tmp;
if ((x <= -5.6e-17) || (!(x <= 1.6e-122) && ((x <= 2.4e-47) || !(x <= 0.0034)))) {
tmp = x * z;
} else {
tmp = 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 <= (-5.6d-17)) .or. (.not. (x <= 1.6d-122)) .and. (x <= 2.4d-47) .or. (.not. (x <= 0.0034d0))) then
tmp = x * z
else
tmp = y
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -5.6e-17) || (!(x <= 1.6e-122) && ((x <= 2.4e-47) || !(x <= 0.0034)))) {
tmp = x * z;
} else {
tmp = y;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -5.6e-17) or (not (x <= 1.6e-122) and ((x <= 2.4e-47) or not (x <= 0.0034))): tmp = x * z else: tmp = y return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -5.6e-17) || (!(x <= 1.6e-122) && ((x <= 2.4e-47) || !(x <= 0.0034)))) tmp = Float64(x * z); else tmp = y; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -5.6e-17) || (~((x <= 1.6e-122)) && ((x <= 2.4e-47) || ~((x <= 0.0034))))) tmp = x * z; else tmp = y; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -5.6e-17], And[N[Not[LessEqual[x, 1.6e-122]], $MachinePrecision], Or[LessEqual[x, 2.4e-47], N[Not[LessEqual[x, 0.0034]], $MachinePrecision]]]], N[(x * z), $MachinePrecision], y]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -5.6 \cdot 10^{-17} \lor \neg \left(x \leq 1.6 \cdot 10^{-122}\right) \land \left(x \leq 2.4 \cdot 10^{-47} \lor \neg \left(x \leq 0.0034\right)\right):\\
\;\;\;\;x \cdot z\\
\mathbf{else}:\\
\;\;\;\;y\\
\end{array}
\end{array}
if x < -5.5999999999999998e-17 or 1.6000000000000001e-122 < x < 2.3999999999999999e-47 or 0.00339999999999999981 < x Initial program 92.1%
remove-double-neg92.1%
distribute-rgt-neg-out92.1%
neg-sub092.1%
neg-sub092.1%
*-commutative92.1%
distribute-lft-neg-in92.1%
remove-double-neg92.1%
distribute-rgt-out--92.1%
*-lft-identity92.1%
associate-+l-92.1%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in y around 0 54.7%
if -5.5999999999999998e-17 < x < 1.6000000000000001e-122 or 2.3999999999999999e-47 < x < 0.00339999999999999981Initial program 100.0%
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 x around 0 77.0%
Final simplification64.8%
(FPCore (x y z) :precision binary64 (if (or (<= x -6500.0) (not (<= x 0.085))) (* x (- z y)) (+ y (* x z))))
double code(double x, double y, double z) {
double tmp;
if ((x <= -6500.0) || !(x <= 0.085)) {
tmp = x * (z - y);
} else {
tmp = y + (x * 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 <= (-6500.0d0)) .or. (.not. (x <= 0.085d0))) then
tmp = x * (z - y)
else
tmp = y + (x * z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((x <= -6500.0) || !(x <= 0.085)) {
tmp = x * (z - y);
} else {
tmp = y + (x * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (x <= -6500.0) or not (x <= 0.085): tmp = x * (z - y) else: tmp = y + (x * z) return tmp
function code(x, y, z) tmp = 0.0 if ((x <= -6500.0) || !(x <= 0.085)) tmp = Float64(x * Float64(z - y)); else tmp = Float64(y + Float64(x * z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((x <= -6500.0) || ~((x <= 0.085))) tmp = x * (z - y); else tmp = y + (x * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[x, -6500.0], N[Not[LessEqual[x, 0.085]], $MachinePrecision]], N[(x * N[(z - y), $MachinePrecision]), $MachinePrecision], N[(y + N[(x * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;x \leq -6500 \lor \neg \left(x \leq 0.085\right):\\
\;\;\;\;x \cdot \left(z - y\right)\\
\mathbf{else}:\\
\;\;\;\;y + x \cdot z\\
\end{array}
\end{array}
if x < -6500 or 0.0850000000000000061 < x Initial program 91.2%
remove-double-neg91.2%
distribute-rgt-neg-out91.2%
neg-sub091.2%
neg-sub091.2%
*-commutative91.2%
distribute-lft-neg-in91.2%
remove-double-neg91.2%
distribute-rgt-out--91.2%
*-lft-identity91.2%
associate-+l-91.2%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around inf 98.7%
if -6500 < x < 0.0850000000000000061Initial program 100.0%
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 y around 0 98.0%
associate-*r*98.0%
neg-mul-198.0%
Simplified98.0%
cancel-sign-sub98.0%
+-commutative98.0%
Applied egg-rr98.0%
Final simplification98.3%
(FPCore (x y z) :precision binary64 (+ y (* x (- z y))))
double code(double x, double y, double z) {
return y + (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 = y + (x * (z - y))
end function
public static double code(double x, double y, double z) {
return y + (x * (z - y));
}
def code(x, y, z): return y + (x * (z - y))
function code(x, y, z) return Float64(y + Float64(x * Float64(z - y))) end
function tmp = code(x, y, z) tmp = y + (x * (z - y)); end
code[x_, y_, z_] := N[(y + N[(x * N[(z - y), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y + x \cdot \left(z - y\right)
\end{array}
Initial program 95.7%
remove-double-neg95.7%
distribute-rgt-neg-out95.7%
neg-sub095.7%
neg-sub095.7%
*-commutative95.7%
distribute-lft-neg-in95.7%
remove-double-neg95.7%
distribute-rgt-out--95.7%
*-lft-identity95.7%
associate-+l-95.7%
distribute-lft-out--100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 y)
double code(double x, double y, double z) {
return y;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = y
end function
public static double code(double x, double y, double z) {
return y;
}
def code(x, y, z): return y
function code(x, y, z) return y end
function tmp = code(x, y, z) tmp = y; end
code[x_, y_, z_] := y
\begin{array}{l}
\\
y
\end{array}
Initial program 95.7%
remove-double-neg95.7%
distribute-rgt-neg-out95.7%
neg-sub095.7%
neg-sub095.7%
*-commutative95.7%
distribute-lft-neg-in95.7%
remove-double-neg95.7%
distribute-rgt-out--95.7%
*-lft-identity95.7%
associate-+l-95.7%
distribute-lft-out--100.0%
Simplified100.0%
Taylor expanded in x around 0 37.2%
Final simplification37.2%
(FPCore (x y z) :precision binary64 (- y (* x (- y z))))
double code(double x, double y, double z) {
return y - (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 = y - (x * (y - z))
end function
public static double code(double x, double y, double z) {
return y - (x * (y - z));
}
def code(x, y, z): return y - (x * (y - z))
function code(x, y, z) return Float64(y - Float64(x * Float64(y - z))) end
function tmp = code(x, y, z) tmp = y - (x * (y - z)); end
code[x_, y_, z_] := N[(y - N[(x * N[(y - z), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
y - x \cdot \left(y - z\right)
\end{array}
herbie shell --seed 2024039
(FPCore (x y z)
:name "Diagrams.Color.HSV:lerp from diagrams-contrib-1.3.0.5"
:precision binary64
:herbie-target
(- y (* x (- y z)))
(+ (* (- 1.0 x) y) (* x z)))