
(FPCore (x y z) :precision binary64 (+ x (* y (- z x))))
double code(double x, double y, double z) {
return x + (y * (z - x));
}
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 - x))
end function
public static double code(double x, double y, double z) {
return x + (y * (z - x));
}
def code(x, y, z): return x + (y * (z - x))
function code(x, y, z) return Float64(x + Float64(y * Float64(z - x))) end
function tmp = code(x, y, z) tmp = x + (y * (z - x)); end
code[x_, y_, z_] := N[(x + N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \left(z - x\right)
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 8 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (x y z) :precision binary64 (+ x (* y (- z x))))
double code(double x, double y, double z) {
return x + (y * (z - x));
}
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 - x))
end function
public static double code(double x, double y, double z) {
return x + (y * (z - x));
}
def code(x, y, z): return x + (y * (z - x))
function code(x, y, z) return Float64(x + Float64(y * Float64(z - x))) end
function tmp = code(x, y, z) tmp = x + (y * (z - x)); end
code[x_, y_, z_] := N[(x + N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \left(z - x\right)
\end{array}
(FPCore (x y z) :precision binary64 (fma y (- z x) x))
double code(double x, double y, double z) {
return fma(y, (z - x), x);
}
function code(x, y, z) return fma(y, Float64(z - x), x) end
code[x_, y_, z_] := N[(y * N[(z - x), $MachinePrecision] + x), $MachinePrecision]
\begin{array}{l}
\\
\mathsf{fma}\left(y, z - x, x\right)
\end{array}
(FPCore (x y z)
:precision binary64
(let* ((t_0 (* y (- x))))
(if (<= y -3.2e+197)
(* y z)
(if (<= y -1.7e+87)
t_0
(if (<= y -1.7e-81)
(* y z)
(if (<= y 1.05e-23) x (if (<= y 4.5e+211) (* y z) t_0)))))))
double code(double x, double y, double z) {
double t_0 = y * -x;
double tmp;
if (y <= -3.2e+197) {
tmp = y * z;
} else if (y <= -1.7e+87) {
tmp = t_0;
} else if (y <= -1.7e-81) {
tmp = y * z;
} else if (y <= 1.05e-23) {
tmp = x;
} else if (y <= 4.5e+211) {
tmp = y * 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 * -x
if (y <= (-3.2d+197)) then
tmp = y * z
else if (y <= (-1.7d+87)) then
tmp = t_0
else if (y <= (-1.7d-81)) then
tmp = y * z
else if (y <= 1.05d-23) then
tmp = x
else if (y <= 4.5d+211) then
tmp = y * 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 * -x;
double tmp;
if (y <= -3.2e+197) {
tmp = y * z;
} else if (y <= -1.7e+87) {
tmp = t_0;
} else if (y <= -1.7e-81) {
tmp = y * z;
} else if (y <= 1.05e-23) {
tmp = x;
} else if (y <= 4.5e+211) {
tmp = y * z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -x tmp = 0 if y <= -3.2e+197: tmp = y * z elif y <= -1.7e+87: tmp = t_0 elif y <= -1.7e-81: tmp = y * z elif y <= 1.05e-23: tmp = x elif y <= 4.5e+211: tmp = y * z else: tmp = t_0 return tmp
function code(x, y, z) t_0 = Float64(y * Float64(-x)) tmp = 0.0 if (y <= -3.2e+197) tmp = Float64(y * z); elseif (y <= -1.7e+87) tmp = t_0; elseif (y <= -1.7e-81) tmp = Float64(y * z); elseif (y <= 1.05e-23) tmp = x; elseif (y <= 4.5e+211) tmp = Float64(y * z); else tmp = t_0; end return tmp end
function tmp_2 = code(x, y, z) t_0 = y * -x; tmp = 0.0; if (y <= -3.2e+197) tmp = y * z; elseif (y <= -1.7e+87) tmp = t_0; elseif (y <= -1.7e-81) tmp = y * z; elseif (y <= 1.05e-23) tmp = x; elseif (y <= 4.5e+211) tmp = y * z; else tmp = t_0; end tmp_2 = tmp; end
code[x_, y_, z_] := Block[{t$95$0 = N[(y * (-x)), $MachinePrecision]}, If[LessEqual[y, -3.2e+197], N[(y * z), $MachinePrecision], If[LessEqual[y, -1.7e+87], t$95$0, If[LessEqual[y, -1.7e-81], N[(y * z), $MachinePrecision], If[LessEqual[y, 1.05e-23], x, If[LessEqual[y, 4.5e+211], N[(y * z), $MachinePrecision], t$95$0]]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-x\right)\\
\mathbf{if}\;y \leq -3.2 \cdot 10^{+197}:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;y \leq -1.7 \cdot 10^{+87}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -1.7 \cdot 10^{-81}:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;y \leq 1.05 \cdot 10^{-23}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 4.5 \cdot 10^{+211}:\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= z -1.2e+53) (not (<= z 1.35e+83))) (* y z) (* x (- 1.0 y))))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.2e+53) || !(z <= 1.35e+83)) {
tmp = y * z;
} else {
tmp = x * (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 ((z <= (-1.2d+53)) .or. (.not. (z <= 1.35d+83))) then
tmp = y * z
else
tmp = x * (1.0d0 - y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((z <= -1.2e+53) || !(z <= 1.35e+83)) {
tmp = y * z;
} else {
tmp = x * (1.0 - y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.2e+53) or not (z <= 1.35e+83): tmp = y * z else: tmp = x * (1.0 - y) return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.2e+53) || !(z <= 1.35e+83)) tmp = Float64(y * z); else tmp = Float64(x * Float64(1.0 - y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((z <= -1.2e+53) || ~((z <= 1.35e+83))) tmp = y * z; else tmp = x * (1.0 - y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.2e+53], N[Not[LessEqual[z, 1.35e+83]], $MachinePrecision]], N[(y * z), $MachinePrecision], N[(x * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.2 \cdot 10^{+53} \lor \neg \left(z \leq 1.35 \cdot 10^{+83}\right):\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - y\right)\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= y -1.45e-85) (not (<= y 2.4e-8))) (* y (- z x)) (* x (- 1.0 y))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.45e-85) || !(y <= 2.4e-8)) {
tmp = y * (z - x);
} else {
tmp = x * (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 <= (-1.45d-85)) .or. (.not. (y <= 2.4d-8))) then
tmp = y * (z - x)
else
tmp = x * (1.0d0 - y)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.45e-85) || !(y <= 2.4e-8)) {
tmp = y * (z - x);
} else {
tmp = x * (1.0 - y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.45e-85) or not (y <= 2.4e-8): tmp = y * (z - x) else: tmp = x * (1.0 - y) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.45e-85) || !(y <= 2.4e-8)) tmp = Float64(y * Float64(z - x)); else tmp = Float64(x * Float64(1.0 - y)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.45e-85) || ~((y <= 2.4e-8))) tmp = y * (z - x); else tmp = x * (1.0 - y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.45e-85], N[Not[LessEqual[y, 2.4e-8]], $MachinePrecision]], N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision], N[(x * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.45 \cdot 10^{-85} \lor \neg \left(y \leq 2.4 \cdot 10^{-8}\right):\\
\;\;\;\;y \cdot \left(z - x\right)\\
\mathbf{else}:\\
\;\;\;\;x \cdot \left(1 - y\right)\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= y -1.36e-84) (not (<= y 3.2e-8))) (* y (- z x)) (- x (* y x))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.36e-84) || !(y <= 3.2e-8)) {
tmp = y * (z - x);
} else {
tmp = x - (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 <= (-1.36d-84)) .or. (.not. (y <= 3.2d-8))) then
tmp = y * (z - x)
else
tmp = x - (y * x)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.36e-84) || !(y <= 3.2e-8)) {
tmp = y * (z - x);
} else {
tmp = x - (y * x);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.36e-84) or not (y <= 3.2e-8): tmp = y * (z - x) else: tmp = x - (y * x) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.36e-84) || !(y <= 3.2e-8)) tmp = Float64(y * Float64(z - x)); else tmp = Float64(x - Float64(y * x)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.36e-84) || ~((y <= 3.2e-8))) tmp = y * (z - x); else tmp = x - (y * x); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.36e-84], N[Not[LessEqual[y, 3.2e-8]], $MachinePrecision]], N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision], N[(x - N[(y * x), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.36 \cdot 10^{-84} \lor \neg \left(y \leq 3.2 \cdot 10^{-8}\right):\\
\;\;\;\;y \cdot \left(z - x\right)\\
\mathbf{else}:\\
\;\;\;\;x - y \cdot x\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= y -4.8e-80) (not (<= y 4.7e-21))) (* y z) x))
double code(double x, double y, double z) {
double tmp;
if ((y <= -4.8e-80) || !(y <= 4.7e-21)) {
tmp = y * z;
} else {
tmp = 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 <= (-4.8d-80)) .or. (.not. (y <= 4.7d-21))) then
tmp = y * z
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -4.8e-80) || !(y <= 4.7e-21)) {
tmp = y * z;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -4.8e-80) or not (y <= 4.7e-21): tmp = y * z else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -4.8e-80) || !(y <= 4.7e-21)) tmp = Float64(y * z); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -4.8e-80) || ~((y <= 4.7e-21))) tmp = y * z; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -4.8e-80], N[Not[LessEqual[y, 4.7e-21]], $MachinePrecision]], N[(y * z), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.8 \cdot 10^{-80} \lor \neg \left(y \leq 4.7 \cdot 10^{-21}\right):\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (+ x (* y (- z x))))
double code(double x, double y, double z) {
return x + (y * (z - x));
}
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 - x))
end function
public static double code(double x, double y, double z) {
return x + (y * (z - x));
}
def code(x, y, z): return x + (y * (z - x))
function code(x, y, z) return Float64(x + Float64(y * Float64(z - x))) end
function tmp = code(x, y, z) tmp = x + (y * (z - x)); end
code[x_, y_, z_] := N[(x + N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
\\
x + y \cdot \left(z - x\right)
\end{array}
(FPCore (x y z) :precision binary64 x)
double code(double x, double y, double z) {
return x;
}
real(8) function code(x, y, z)
real(8), intent (in) :: x
real(8), intent (in) :: y
real(8), intent (in) :: z
code = x
end function
public static double code(double x, double y, double z) {
return x;
}
def code(x, y, z): return x
function code(x, y, z) return x end
function tmp = code(x, y, z) tmp = x; end
code[x_, y_, z_] := x
\begin{array}{l}
\\
x
\end{array}
herbie shell --seed 2024008
(FPCore (x y z)
:name "SynthBasics:oscSampleBasedAux from YampaSynth-0.2"
:precision binary64
(+ x (* y (- z x))))