
(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 97.3%
distribute-lft-out--97.2%
*-rgt-identity97.2%
cancel-sign-sub-inv97.2%
+-commutative97.2%
associate-+r+97.2%
+-commutative97.2%
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 -2.5e+207)
t_0
(if (<= y -1.7e+160)
(* y x)
(if (<= y -2.7e+56)
t_0
(if (<= y -3.3e-32)
(* y x)
(if (<= y 1.1e-31) z (if (<= y 5.4e+79) (* y x) t_0))))))))
double code(double x, double y, double z) {
double t_0 = y * -z;
double tmp;
if (y <= -2.5e+207) {
tmp = t_0;
} else if (y <= -1.7e+160) {
tmp = y * x;
} else if (y <= -2.7e+56) {
tmp = t_0;
} else if (y <= -3.3e-32) {
tmp = y * x;
} else if (y <= 1.1e-31) {
tmp = z;
} else if (y <= 5.4e+79) {
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 <= (-2.5d+207)) then
tmp = t_0
else if (y <= (-1.7d+160)) then
tmp = y * x
else if (y <= (-2.7d+56)) then
tmp = t_0
else if (y <= (-3.3d-32)) then
tmp = y * x
else if (y <= 1.1d-31) then
tmp = z
else if (y <= 5.4d+79) 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 <= -2.5e+207) {
tmp = t_0;
} else if (y <= -1.7e+160) {
tmp = y * x;
} else if (y <= -2.7e+56) {
tmp = t_0;
} else if (y <= -3.3e-32) {
tmp = y * x;
} else if (y <= 1.1e-31) {
tmp = z;
} else if (y <= 5.4e+79) {
tmp = y * x;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -z tmp = 0 if y <= -2.5e+207: tmp = t_0 elif y <= -1.7e+160: tmp = y * x elif y <= -2.7e+56: tmp = t_0 elif y <= -3.3e-32: tmp = y * x elif y <= 1.1e-31: tmp = z elif y <= 5.4e+79: 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 <= -2.5e+207) tmp = t_0; elseif (y <= -1.7e+160) tmp = Float64(y * x); elseif (y <= -2.7e+56) tmp = t_0; elseif (y <= -3.3e-32) tmp = Float64(y * x); elseif (y <= 1.1e-31) tmp = z; elseif (y <= 5.4e+79) 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 <= -2.5e+207) tmp = t_0; elseif (y <= -1.7e+160) tmp = y * x; elseif (y <= -2.7e+56) tmp = t_0; elseif (y <= -3.3e-32) tmp = y * x; elseif (y <= 1.1e-31) tmp = z; elseif (y <= 5.4e+79) 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, -2.5e+207], t$95$0, If[LessEqual[y, -1.7e+160], N[(y * x), $MachinePrecision], If[LessEqual[y, -2.7e+56], t$95$0, If[LessEqual[y, -3.3e-32], N[(y * x), $MachinePrecision], If[LessEqual[y, 1.1e-31], z, If[LessEqual[y, 5.4e+79], N[(y * x), $MachinePrecision], t$95$0]]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-z\right)\\
\mathbf{if}\;y \leq -2.5 \cdot 10^{+207}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -1.7 \cdot 10^{+160}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq -2.7 \cdot 10^{+56}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -3.3 \cdot 10^{-32}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 1.1 \cdot 10^{-31}:\\
\;\;\;\;z\\
\mathbf{elif}\;y \leq 5.4 \cdot 10^{+79}:\\
\;\;\;\;y \cdot x\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
if y < -2.5e207 or -1.70000000000000015e160 < y < -2.7000000000000001e56 or 5.3999999999999999e79 < y Initial program 93.1%
Taylor expanded in y around inf 100.0%
neg-mul-1100.0%
+-commutative100.0%
sub-neg100.0%
Simplified100.0%
Taylor expanded in x around 0 69.3%
mul-1-neg69.3%
distribute-rgt-neg-out69.3%
Simplified69.3%
if -2.5e207 < y < -1.70000000000000015e160 or -2.7000000000000001e56 < y < -3.30000000000000025e-32 or 1.10000000000000005e-31 < y < 5.3999999999999999e79Initial program 97.7%
Taylor expanded in x around inf 73.7%
if -3.30000000000000025e-32 < y < 1.10000000000000005e-31Initial program 100.0%
Taylor expanded in y around 0 77.9%
Final simplification74.2%
(FPCore (x y z) :precision binary64 (if (or (<= y -2.05e-32) (not (<= y 2.5e-30))) (* y (- x z)) z))
double code(double x, double y, double z) {
double tmp;
if ((y <= -2.05e-32) || !(y <= 2.5e-30)) {
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 <= (-2.05d-32)) .or. (.not. (y <= 2.5d-30))) 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 <= -2.05e-32) || !(y <= 2.5e-30)) {
tmp = y * (x - z);
} else {
tmp = z;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -2.05e-32) or not (y <= 2.5e-30): tmp = y * (x - z) else: tmp = z return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -2.05e-32) || !(y <= 2.5e-30)) 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 <= -2.05e-32) || ~((y <= 2.5e-30))) tmp = y * (x - z); else tmp = z; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -2.05e-32], N[Not[LessEqual[y, 2.5e-30]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], z]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.05 \cdot 10^{-32} \lor \neg \left(y \leq 2.5 \cdot 10^{-30}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z\\
\end{array}
\end{array}
if y < -2.04999999999999988e-32 or 2.49999999999999986e-30 < y Initial program 94.6%
Taylor expanded in y around inf 98.2%
neg-mul-198.2%
+-commutative98.2%
sub-neg98.2%
Simplified98.2%
if -2.04999999999999988e-32 < y < 2.49999999999999986e-30Initial program 100.0%
Taylor expanded in y around 0 77.9%
Final simplification88.3%
(FPCore (x y z) :precision binary64 (if (or (<= y -3.5e-32) (not (<= y 2.5e-30))) (* y (- x z)) (* z (- 1.0 y))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -3.5e-32) || !(y <= 2.5e-30)) {
tmp = y * (x - z);
} else {
tmp = z * (1.0 - 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 ((y <= (-3.5d-32)) .or. (.not. (y <= 2.5d-30))) then
tmp = y * (x - z)
else
tmp = z * (1.0d0 - y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -3.5e-32) || !(y <= 2.5e-30)) {
tmp = y * (x - z);
} else {
tmp = z * (1.0 - y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -3.5e-32) or not (y <= 2.5e-30): tmp = y * (x - z) else: tmp = z * (1.0 - y) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -3.5e-32) || !(y <= 2.5e-30)) tmp = Float64(y * Float64(x - z)); else tmp = Float64(z * Float64(1.0 - y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -3.5e-32) || ~((y <= 2.5e-30))) tmp = y * (x - z); else tmp = z * (1.0 - y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -3.5e-32], N[Not[LessEqual[y, 2.5e-30]], $MachinePrecision]], N[(y * N[(x - z), $MachinePrecision]), $MachinePrecision], N[(z * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -3.5 \cdot 10^{-32} \lor \neg \left(y \leq 2.5 \cdot 10^{-30}\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z \cdot \left(1 - y\right)\\
\end{array}
\end{array}
if y < -3.4999999999999999e-32 or 2.49999999999999986e-30 < y Initial program 94.6%
Taylor expanded in y around inf 98.2%
neg-mul-198.2%
+-commutative98.2%
sub-neg98.2%
Simplified98.2%
if -3.4999999999999999e-32 < y < 2.49999999999999986e-30Initial program 100.0%
Taylor expanded in x around 0 77.9%
Final simplification88.3%
(FPCore (x y z) :precision binary64 (if (or (<= y -4.2e+28) (not (<= y 1.0))) (* y (- x z)) (+ z (* y x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -4.2e+28) || !(y <= 1.0)) {
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 <= (-4.2d+28)) .or. (.not. (y <= 1.0d0))) 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 <= -4.2e+28) || !(y <= 1.0)) {
tmp = y * (x - z);
} else {
tmp = z + (y * x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -4.2e+28) or not (y <= 1.0): tmp = y * (x - z) else: tmp = z + (y * x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -4.2e+28) || !(y <= 1.0)) 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 <= -4.2e+28) || ~((y <= 1.0))) tmp = y * (x - z); else tmp = z + (y * x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -4.2e+28], N[Not[LessEqual[y, 1.0]], $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 -4.2 \cdot 10^{+28} \lor \neg \left(y \leq 1\right):\\
\;\;\;\;y \cdot \left(x - z\right)\\
\mathbf{else}:\\
\;\;\;\;z + y \cdot x\\
\end{array}
\end{array}
if y < -4.19999999999999978e28 or 1 < y Initial program 94.1%
Taylor expanded in y around inf 99.7%
neg-mul-199.7%
+-commutative99.7%
sub-neg99.7%
Simplified99.7%
if -4.19999999999999978e28 < y < 1Initial program 100.0%
distribute-lft-out--100.0%
*-rgt-identity100.0%
cancel-sign-sub-inv100.0%
+-commutative100.0%
associate-+r+100.0%
+-commutative100.0%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around 0 100.0%
Taylor expanded in x around inf 99.6%
Final simplification99.7%
(FPCore (x y z) :precision binary64 (if (<= y -2.8e-32) (* y x) (if (<= y 2.9e-31) z (* y x))))
double code(double x, double y, double z) {
double tmp;
if (y <= -2.8e-32) {
tmp = y * x;
} else if (y <= 2.9e-31) {
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 <= (-2.8d-32)) then
tmp = y * x
else if (y <= 2.9d-31) 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 <= -2.8e-32) {
tmp = y * x;
} else if (y <= 2.9e-31) {
tmp = z;
} else {
tmp = y * x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if y <= -2.8e-32: tmp = y * x elif y <= 2.9e-31: tmp = z else: tmp = y * x return tmp
function code(x, y, z) tmp = 0.0 if (y <= -2.8e-32) tmp = Float64(y * x); elseif (y <= 2.9e-31) tmp = z; else tmp = Float64(y * x); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if (y <= -2.8e-32) tmp = y * x; elseif (y <= 2.9e-31) tmp = z; else tmp = y * x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[LessEqual[y, -2.8e-32], N[(y * x), $MachinePrecision], If[LessEqual[y, 2.9e-31], z, N[(y * x), $MachinePrecision]]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -2.8 \cdot 10^{-32}:\\
\;\;\;\;y \cdot x\\
\mathbf{elif}\;y \leq 2.9 \cdot 10^{-31}:\\
\;\;\;\;z\\
\mathbf{else}:\\
\;\;\;\;y \cdot x\\
\end{array}
\end{array}
if y < -2.7999999999999999e-32 or 2.9000000000000001e-31 < y Initial program 94.6%
Taylor expanded in x around inf 50.1%
if -2.7999999999999999e-32 < y < 2.9000000000000001e-31Initial program 100.0%
Taylor expanded in y around 0 77.9%
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 97.3%
distribute-lft-out--97.2%
*-rgt-identity97.2%
cancel-sign-sub-inv97.2%
+-commutative97.2%
associate-+r+97.2%
+-commutative97.2%
distribute-rgt-out100.0%
fma-def100.0%
+-commutative100.0%
unsub-neg100.0%
Simplified100.0%
Taylor expanded in y around 0 100.0%
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 97.3%
Taylor expanded in y around 0 40.0%
Final simplification40.0%
(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 2023274
(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))))