
(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 -2.4e+241)
t_0
(if (<= y -1.35e-80)
(* y z)
(if (<= y 3.5e-53) x (if (<= y 1.1e+155) (* y z) t_0))))))
double code(double x, double y, double z) {
double t_0 = y * -x;
double tmp;
if (y <= -2.4e+241) {
tmp = t_0;
} else if (y <= -1.35e-80) {
tmp = y * z;
} else if (y <= 3.5e-53) {
tmp = x;
} else if (y <= 1.1e+155) {
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 <= (-2.4d+241)) then
tmp = t_0
else if (y <= (-1.35d-80)) then
tmp = y * z
else if (y <= 3.5d-53) then
tmp = x
else if (y <= 1.1d+155) 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 <= -2.4e+241) {
tmp = t_0;
} else if (y <= -1.35e-80) {
tmp = y * z;
} else if (y <= 3.5e-53) {
tmp = x;
} else if (y <= 1.1e+155) {
tmp = y * z;
} else {
tmp = t_0;
}
return tmp;
}
def code(x, y, z): t_0 = y * -x tmp = 0 if y <= -2.4e+241: tmp = t_0 elif y <= -1.35e-80: tmp = y * z elif y <= 3.5e-53: tmp = x elif y <= 1.1e+155: 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 <= -2.4e+241) tmp = t_0; elseif (y <= -1.35e-80) tmp = Float64(y * z); elseif (y <= 3.5e-53) tmp = x; elseif (y <= 1.1e+155) 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 <= -2.4e+241) tmp = t_0; elseif (y <= -1.35e-80) tmp = y * z; elseif (y <= 3.5e-53) tmp = x; elseif (y <= 1.1e+155) 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, -2.4e+241], t$95$0, If[LessEqual[y, -1.35e-80], N[(y * z), $MachinePrecision], If[LessEqual[y, 3.5e-53], x, If[LessEqual[y, 1.1e+155], N[(y * z), $MachinePrecision], t$95$0]]]]]
\begin{array}{l}
\\
\begin{array}{l}
t_0 := y \cdot \left(-x\right)\\
\mathbf{if}\;y \leq -2.4 \cdot 10^{+241}:\\
\;\;\;\;t_0\\
\mathbf{elif}\;y \leq -1.35 \cdot 10^{-80}:\\
\;\;\;\;y \cdot z\\
\mathbf{elif}\;y \leq 3.5 \cdot 10^{-53}:\\
\;\;\;\;x\\
\mathbf{elif}\;y \leq 1.1 \cdot 10^{+155}:\\
\;\;\;\;y \cdot z\\
\mathbf{else}:\\
\;\;\;\;t_0\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= z -1.34e+70) (not (<= z 7.6e+42))) (* y z) (* x (- 1.0 y))))
double code(double x, double y, double z) {
double tmp;
if ((z <= -1.34e+70) || !(z <= 7.6e+42)) {
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 <= (-1.34d+70)) .or. (.not. (z <= 7.6d+42))) 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 <= -1.34e+70) || !(z <= 7.6e+42)) {
tmp = y * z;
} else {
tmp = x * (1.0 - y);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (z <= -1.34e+70) or not (z <= 7.6e+42): tmp = y * z else: tmp = x * (1.0 - y) return tmp
function code(x, y, z) tmp = 0.0 if ((z <= -1.34e+70) || !(z <= 7.6e+42)) 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 <= -1.34e+70) || ~((z <= 7.6e+42))) tmp = y * z; else tmp = x * (1.0 - y); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[z, -1.34e+70], N[Not[LessEqual[z, 7.6e+42]], $MachinePrecision]], N[(y * z), $MachinePrecision], N[(x * N[(1.0 - y), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;z \leq -1.34 \cdot 10^{+70} \lor \neg \left(z \leq 7.6 \cdot 10^{+42}\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 -1.26e-80) (not (<= y 2.25e-54))) (* y (- z x)) x))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.26e-80) || !(y <= 2.25e-54)) {
tmp = y * (z - x);
} 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 <= (-1.26d-80)) .or. (.not. (y <= 2.25d-54))) then
tmp = y * (z - x)
else
tmp = x
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.26e-80) || !(y <= 2.25e-54)) {
tmp = y * (z - x);
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.26e-80) or not (y <= 2.25e-54): tmp = y * (z - x) else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.26e-80) || !(y <= 2.25e-54)) tmp = Float64(y * Float64(z - x)); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.26e-80) || ~((y <= 2.25e-54))) tmp = y * (z - x); else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.26e-80], N[Not[LessEqual[y, 2.25e-54]], $MachinePrecision]], N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1.26 \cdot 10^{-80} \lor \neg \left(y \leq 2.25 \cdot 10^{-54}\right):\\
\;\;\;\;y \cdot \left(z - x\right)\\
\mathbf{else}:\\
\;\;\;\;x\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= y -1.0) (not (<= y 5.5e-9))) (* y (- z x)) (+ x (* y z))))
double code(double x, double y, double z) {
double tmp;
if ((y <= -1.0) || !(y <= 5.5e-9)) {
tmp = y * (z - x);
} else {
tmp = x + (y * 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 <= (-1.0d0)) .or. (.not. (y <= 5.5d-9))) then
tmp = y * (z - x)
else
tmp = x + (y * z)
end if
code = tmp
end function
public static double code(double x, double y, double z) {
double tmp;
if ((y <= -1.0) || !(y <= 5.5e-9)) {
tmp = y * (z - x);
} else {
tmp = x + (y * z);
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -1.0) or not (y <= 5.5e-9): tmp = y * (z - x) else: tmp = x + (y * z) return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -1.0) || !(y <= 5.5e-9)) tmp = Float64(y * Float64(z - x)); else tmp = Float64(x + Float64(y * z)); end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -1.0) || ~((y <= 5.5e-9))) tmp = y * (z - x); else tmp = x + (y * z); end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -1.0], N[Not[LessEqual[y, 5.5e-9]], $MachinePrecision]], N[(y * N[(z - x), $MachinePrecision]), $MachinePrecision], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -1 \lor \neg \left(y \leq 5.5 \cdot 10^{-9}\right):\\
\;\;\;\;y \cdot \left(z - x\right)\\
\mathbf{else}:\\
\;\;\;\;x + y \cdot z\\
\end{array}
\end{array}
(FPCore (x y z) :precision binary64 (if (or (<= y -4.2e-80) (not (<= y 5.8e-51))) (* y z) x))
double code(double x, double y, double z) {
double tmp;
if ((y <= -4.2e-80) || !(y <= 5.8e-51)) {
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 <= (-4.2d-80)) .or. (.not. (y <= 5.8d-51))) 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 <= -4.2e-80) || !(y <= 5.8e-51)) {
tmp = y * z;
} else {
tmp = x;
}
return tmp;
}
def code(x, y, z): tmp = 0 if (y <= -4.2e-80) or not (y <= 5.8e-51): tmp = y * z else: tmp = x return tmp
function code(x, y, z) tmp = 0.0 if ((y <= -4.2e-80) || !(y <= 5.8e-51)) tmp = Float64(y * z); else tmp = x; end return tmp end
function tmp_2 = code(x, y, z) tmp = 0.0; if ((y <= -4.2e-80) || ~((y <= 5.8e-51))) tmp = y * z; else tmp = x; end tmp_2 = tmp; end
code[x_, y_, z_] := If[Or[LessEqual[y, -4.2e-80], N[Not[LessEqual[y, 5.8e-51]], $MachinePrecision]], N[(y * z), $MachinePrecision], x]
\begin{array}{l}
\\
\begin{array}{l}
\mathbf{if}\;y \leq -4.2 \cdot 10^{-80} \lor \neg \left(y \leq 5.8 \cdot 10^{-51}\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 2023347
(FPCore (x y z)
:name "SynthBasics:oscSampleBasedAux from YampaSynth-0.2"
:precision binary64
(+ x (* y (- z x))))