
(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 6 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 96.9%
distribute-lft-out--96.9%
*-rgt-identity96.9%
cancel-sign-sub-inv96.9%
+-commutative96.9%
associate-+r+96.9%
+-commutative96.9%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- z))))
(if (<= y -6.2e+243)
t_0
(if (<= y -7e+187)
(* y x)
(if (<= y -2e+36)
t_0
(if (<= y -6e-73)
(* y x)
(if (<= y 1.15e-48)
z
(if (or (<= y 5.2e+80)
(and (not (<= y 3.4e+163))
(or (<= y 2.9e+199) (not (<= y 1.4e+258)))))
(* y x)
t_0))))))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (y <= -6.2e+243) {
tmp = t_0;
} else if (y <= -7e+187) {
tmp = y * x;
} else if (y <= -2e+36) {
tmp = t_0;
} else if (y <= -6e-73) {
tmp = y * x;
} else if (y <= 1.15e-48) {
tmp = z;
} else if ((y <= 5.2e+80) || (!(y <= 3.4e+163) && ((y <= 2.9e+199) || !(y <= 1.4e+258)))) {
tmp = y * x;
} 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 <= (-6.2d+243)) then
tmp = t_0
else if (y <= (-7d+187)) then
tmp = y * x
else if (y <= (-2d+36)) then
tmp = t_0
else if (y <= (-6d-73)) then
tmp = y * x
else if (y <= 1.15d-48) then
tmp = z
else if ((y <= 5.2d+80) .or. (.not. (y <= 3.4d+163)) .and. (y <= 2.9d+199) .or. (.not. (y <= 1.4d+258))) then
tmp = y * x
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 <= -6.2e+243) {
tmp = t_0;
} else if (y <= -7e+187) {
tmp = y * x;
} else if (y <= -2e+36) {
tmp = t_0;
} else if (y <= -6e-73) {
tmp = y * x;
} else if (y <= 1.15e-48) {
tmp = z;
} else if ((y <= 5.2e+80) || (!(y <= 3.4e+163) && ((y <= 2.9e+199) || !(y <= 1.4e+258)))) {
tmp = y * x;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z tmp = 0 if y <= -6.2e+243: tmp = t_0 elif y <= -7e+187: tmp = y * x elif y <= -2e+36: tmp = t_0 elif y <= -6e-73: tmp = y * x elif y <= 1.15e-48: tmp = z elif (y <= 5.2e+80) or (not (y <= 3.4e+163) and ((y <= 2.9e+199) or not (y <= 1.4e+258))): tmp = y * x else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-z)) tmp = 0.0 if (y <= -6.2e+243) tmp = t_0; elseif (y <= -7e+187) tmp = Float64(y * x); elseif (y <= -2e+36) tmp = t_0; elseif (y <= -6e-73) tmp = Float64(y * x); elseif (y <= 1.15e-48) tmp = z; elseif ((y <= 5.2e+80) || (!(y <= 3.4e+163) && ((y <= 2.9e+199) || !(y <= 1.4e+258)))) tmp = Float64(y * x); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -z; tmp = 0.0; if (y <= -6.2e+243) tmp = t_0; elseif (y <= -7e+187) tmp = y * x; elseif (y <= -2e+36) tmp = t_0; elseif (y <= -6e-73) tmp = y * x; elseif (y <= 1.15e-48) tmp = z; elseif ((y <= 5.2e+80) || (~((y <= 3.4e+163)) && ((y <= 2.9e+199) || ~((y <= 1.4e+258))))) tmp = y * x; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-z)), $MachinePrecision]}, If[LessEqual[y, -6.2e+243], t$95$0, If[LessEqual[y, -7e+187], N[(y * x), $MachinePrecision], If[LessEqual[y, -2e+36], t$95$0, If[LessEqual[y, -6e-73], N[(y * x), $MachinePrecision], If[LessEqual[y, 1.15e-48], z, If[Or[LessEqual[y, 5.2e+80], And[N[Not[LessEqual[y, 3.4e+163]], $MachinePrecision], Or[LessEqual[y, 2.9e+199], N[Not[LessEqual[y, 1.4e+258]], $MachinePrecision]]]], N[(y * x), $MachinePrecision], t$95$0]]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -6.2 \cdot 10^{+243}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -7 \cdot 10^{+187}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -2 \cdot 10^{+36}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -6 \cdot 10^{-73}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 1.15 \cdot 10^{-48}:\\
\;\;\;\;z\\
\mathbf{elif}\;y \leq 5.2 \cdot 10^{+80} \lor \neg \left(y \leq 3.4 \cdot 10^{+163}\right) \land \left(y \leq 2.9 \cdot 10^{+199} \lor \neg \left(y \leq 1.4 \cdot 10^{+258}\right)\right):\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if y < -6.2e243 or -6.9999999999999995e187 < y < -2.00000000000000008e36 or 5.19999999999999963e80 < y < 3.4000000000000001e163 or 2.8999999999999999e199 < y < 1.39999999999999991e258Initial program 92.3%
Taylor expanded in y around inf 100.0%
+-commutative100.0%
mul-1-neg100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 68.9%
mul-1-neg68.9%
distribute-rgt-neg-out68.9%
Simplified68.9%
if -6.2e243 < y < -6.9999999999999995e187 or -2.00000000000000008e36 < y < -6e-73 or 1.15e-48 < y < 5.19999999999999963e80 or 3.4000000000000001e163 < y < 2.8999999999999999e199 or 1.39999999999999991e258 < y Initial program 97.6%
Taylor expanded in x around inf 67.6%
if -6e-73 < y < 1.15e-48Initial program 100.0%
Taylor expanded in y around 0 81.9%
Final simplification73.2%
(FPCore (x y z) :precision binary64 (let* ((t_0 (+ (* z (- 1.0 y)) (* y x)))) (if (<= t_0 8e+298) t_0 (* y (- x z)))))
double code(double x, double y, double z) {
double t_0 = (z * (1.0 - y)) + (y * x);
double tmp;
if (t_0 <= 8e+298) {
tmp = t_0;
} 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) :: t_0
real(8) :: tmp
t_0 = (z * (1.0d0 - y)) + (y * x)
if (t_0 <= 8d+298) then
tmp = t_0
else
tmp = y * (x - z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double t_0 = (z * (1.0 - y)) + (y * x);
double tmp;
if (t_0 <= 8e+298) {
tmp = t_0;
} else {
tmp = y * (x - z);
}
return tmp;
}
def code(x, y, z): t_0 = (z * (1.0 - y)) + (y * x) tmp = 0 if t_0 <= 8e+298: tmp = t_0 else: tmp = y * (x - z) return tmp
function code(x, y, z) t_0 = Float64(Float64(z * Float64(1.0 - y)) + Float64(y * x)) tmp = 0.0 if (t_0 <= 8e+298) tmp = t_0; else tmp = Float64(y * Float64(x - z)); end return tmp end
function tmp_2 = code(x, y, z) t_0 = (z * (1.0 - y)) + (y * x); tmp = 0.0; if (t_0 <= 8e+298) tmp = t_0; else tmp = y * (x - z); end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision] + N[(y * x), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, 8e+298], t$95$0, N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := z \cdot \left(1 - y\right) + y \cdot x\\
\mathbf{if}\;t_0 \leq 8 \cdot 10^{+298}:\\
\;\;\;\;t_0\\
\mathbf{else}:\\
\;\;\;\;y \cdot \left(x - z\right)\\
\end{array}
\end{array}
if (+.f64 (*.f64 x y) (*.f64 z (-.f64 1 y))) < 7.9999999999999997e298Initial program 100.0%
if 7.9999999999999997e298 < (+.f64 (*.f64 x y) (*.f64 z (-.f64 1 y))) Initial program 80.5%
Taylor expanded in y around inf 100.0%
+-commutative100.0%
mul-1-neg100.0%
unsub-neg100.0%
Simplified100.0%
Final simplification100.0%
(FPCore (x y z) :precision binary64 (if (or (<= y -1.35e-70) (not (<= y 4.5e-49))) (* y (- x z)) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.35e-70) || !(y <= 4.5e-49)) {
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 <= (-1.35d-70)) .or. (.not. (y <= 4.5d-49))) 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 <= -1.35e-70) || !(y <= 4.5e-49)) {
tmp = y * (x - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.35e-70) or not (y <= 4.5e-49): tmp = y * (x - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.35e-70) || !(y <= 4.5e-49)) 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 <= -1.35e-70) || ~((y <= 4.5e-49))) tmp = y * (x - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.35e-70], N[Not[LessEqual[y, 4.5e-49]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.35 \cdot 10^{-70} \lor \neg \left(y \leq 4.5 \cdot 10^{-49}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -1.3500000000000001e-70 or 4.5000000000000002e-49 < y Initial program 95.1%
Taylor expanded in y around inf 93.8%
+-commutative93.8%
mul-1-neg93.8%
unsub-neg93.8%
Simplified93.8%
if -1.3500000000000001e-70 < y < 4.5000000000000002e-49Initial program 100.0%
Taylor expanded in y around 0 81.9%
Final simplification89.5%
(FPCore (x y z) :precision binary64 (if (<= y -6e-73) (* y x) (if (<= y 1.26e-49) z (* y x))))
double code(double x, double y, double z) {
double tmp;
if (y <= -6e-73) {
tmp = y * x;
} else if (y <= 1.26e-49) {
tmp = z;
} else {
tmp = 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 <= (-6d-73)) then
tmp = y * x
else if (y <= 1.26d-49) then
tmp = z
else
tmp = y * x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if (y <= -6e-73) {
tmp = y * x;
} else if (y <= 1.26e-49) {
tmp = z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -6e-73: tmp = y * x elif y <= 1.26e-49: tmp = z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -6e-73) tmp = Float64(y * x); elseif (y <= 1.26e-49) tmp = z; else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -6e-73) tmp = y * x; elseif (y <= 1.26e-49) tmp = z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -6e-73], N[(y * x), $MachinePrecision], If[LessEqual[y, 1.26e-49], z, N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -6 \cdot 10^{-73}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 1.26 \cdot 10^{-49}:\\
\;\;\;\;z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -6e-73 or 1.26000000000000005e-49 < y Initial program 95.1%
Taylor expanded in x around inf 53.2%
if -6e-73 < y < 1.26000000000000005e-49Initial program 100.0%
Taylor expanded in y around 0 81.9%
Final simplification63.6%
(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 96.9%
Taylor expanded in y around 0 34.1%
Final simplification34.1%
(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 2023266
(FPCore (x y z)
:name "Diagrams.TwoD.Segment:bezierClip from diagrams-lib-1.3.0.3"
:precision binary64
:herbie-target
(- z (* (- z x) y))
(+ (* x y) (* z (- 1.0 y))))