Diagrams.ThreeD.Transform:aboutY from diagrams-lib-1.3.0.3

Percentage Accurate: 99.8% → 99.8%
Time: 7.7s
Alternatives: 8
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ x \cdot \cos y + z \cdot \sin y \end{array} \]
(FPCore (x y z) :precision binary64 (+ (* x (cos y)) (* z (sin y))))
double code(double x, double y, double z) {
	return (x * cos(y)) + (z * sin(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 * cos(y)) + (z * sin(y))
end function
public static double code(double x, double y, double z) {
	return (x * Math.cos(y)) + (z * Math.sin(y));
}
def code(x, y, z):
	return (x * math.cos(y)) + (z * math.sin(y))
function code(x, y, z)
	return Float64(Float64(x * cos(y)) + Float64(z * sin(y)))
end
function tmp = code(x, y, z)
	tmp = (x * cos(y)) + (z * sin(y));
end
code[x_, y_, z_] := N[(N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision] + N[(z * N[Sin[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x \cdot \cos y + z \cdot \sin y
\end{array}

Sampling outcomes in binary64 precision:

Local Percentage Accuracy vs ?

The average percentage accuracy by input value. Horizontal axis shows value of an input variable; the variable is choosen in the title. Vertical axis is accuracy; higher is better. Red represent the original program, while blue represents Herbie's suggestion. These can be toggled with buttons below the plot. The line is an average while dots represent individual samples.

Accuracy vs Speed?

Herbie found 8 alternatives:

AlternativeAccuracySpeedup
The accuracy (vertical axis) and speed (horizontal axis) of each alternatives. Up and to the right is better. The red square shows the initial program, and each blue circle shows an alternative.The line shows the best available speed-accuracy tradeoffs.

Initial Program: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ x \cdot \cos y + z \cdot \sin y \end{array} \]
(FPCore (x y z) :precision binary64 (+ (* x (cos y)) (* z (sin y))))
double code(double x, double y, double z) {
	return (x * cos(y)) + (z * sin(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 * cos(y)) + (z * sin(y))
end function
public static double code(double x, double y, double z) {
	return (x * Math.cos(y)) + (z * Math.sin(y));
}
def code(x, y, z):
	return (x * math.cos(y)) + (z * math.sin(y))
function code(x, y, z)
	return Float64(Float64(x * cos(y)) + Float64(z * sin(y)))
end
function tmp = code(x, y, z)
	tmp = (x * cos(y)) + (z * sin(y));
end
code[x_, y_, z_] := N[(N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision] + N[(z * N[Sin[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x \cdot \cos y + z \cdot \sin y
\end{array}

Alternative 1: 99.8% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \mathsf{fma}\left(\sin y, z, x \cdot \cos y\right) \end{array} \]
(FPCore (x y z) :precision binary64 (fma (sin y) z (* x (cos y))))
double code(double x, double y, double z) {
	return fma(sin(y), z, (x * cos(y)));
}
function code(x, y, z)
	return fma(sin(y), z, Float64(x * cos(y)))
end
code[x_, y_, z_] := N[(N[Sin[y], $MachinePrecision] * z + N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)
\end{array}
Derivation
  1. Initial program 99.8%

    \[x \cdot \cos y + z \cdot \sin y \]
  2. Step-by-step derivation
    1. +-commutative99.8%

      \[\leadsto \color{blue}{z \cdot \sin y + x \cdot \cos y} \]
    2. *-commutative99.8%

      \[\leadsto \color{blue}{\sin y \cdot z} + x \cdot \cos y \]
    3. fma-def99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
  3. Applied egg-rr99.8%

    \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
  4. Final simplification99.8%

    \[\leadsto \mathsf{fma}\left(\sin y, z, x \cdot \cos y\right) \]

Alternative 2: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sin y \cdot z + x \cdot \cos y \end{array} \]
(FPCore (x y z) :precision binary64 (+ (* (sin y) z) (* x (cos y))))
double code(double x, double y, double z) {
	return (sin(y) * z) + (x * cos(y));
}
real(8) function code(x, y, z)
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    real(8), intent (in) :: z
    code = (sin(y) * z) + (x * cos(y))
end function
public static double code(double x, double y, double z) {
	return (Math.sin(y) * z) + (x * Math.cos(y));
}
def code(x, y, z):
	return (math.sin(y) * z) + (x * math.cos(y))
function code(x, y, z)
	return Float64(Float64(sin(y) * z) + Float64(x * cos(y)))
end
function tmp = code(x, y, z)
	tmp = (sin(y) * z) + (x * cos(y));
end
code[x_, y_, z_] := N[(N[(N[Sin[y], $MachinePrecision] * z), $MachinePrecision] + N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sin y \cdot z + x \cdot \cos y
\end{array}
Derivation
  1. Initial program 99.8%

    \[x \cdot \cos y + z \cdot \sin y \]
  2. Final simplification99.8%

    \[\leadsto \sin y \cdot z + x \cdot \cos y \]

Alternative 3: 85.1% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -2.4 \cdot 10^{+164} \lor \neg \left(x \leq 2.5 \cdot 10^{+75}\right):\\ \;\;\;\;x \cdot \cos y\\ \mathbf{else}:\\ \;\;\;\;x + \sin y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= x -2.4e+164) (not (<= x 2.5e+75)))
   (* x (cos y))
   (+ x (* (sin y) z))))
double code(double x, double y, double z) {
	double tmp;
	if ((x <= -2.4e+164) || !(x <= 2.5e+75)) {
		tmp = x * cos(y);
	} else {
		tmp = x + (sin(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 ((x <= (-2.4d+164)) .or. (.not. (x <= 2.5d+75))) then
        tmp = x * cos(y)
    else
        tmp = x + (sin(y) * z)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((x <= -2.4e+164) || !(x <= 2.5e+75)) {
		tmp = x * Math.cos(y);
	} else {
		tmp = x + (Math.sin(y) * z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (x <= -2.4e+164) or not (x <= 2.5e+75):
		tmp = x * math.cos(y)
	else:
		tmp = x + (math.sin(y) * z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((x <= -2.4e+164) || !(x <= 2.5e+75))
		tmp = Float64(x * cos(y));
	else
		tmp = Float64(x + Float64(sin(y) * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((x <= -2.4e+164) || ~((x <= 2.5e+75)))
		tmp = x * cos(y);
	else
		tmp = x + (sin(y) * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[x, -2.4e+164], N[Not[LessEqual[x, 2.5e+75]], $MachinePrecision]], N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision], N[(x + N[(N[Sin[y], $MachinePrecision] * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -2.4 \cdot 10^{+164} \lor \neg \left(x \leq 2.5 \cdot 10^{+75}\right):\\
\;\;\;\;x \cdot \cos y\\

\mathbf{else}:\\
\;\;\;\;x + \sin y \cdot z\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -2.40000000000000011e164 or 2.5000000000000001e75 < x

    1. Initial program 99.7%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Step-by-step derivation
      1. +-commutative99.7%

        \[\leadsto \color{blue}{z \cdot \sin y + x \cdot \cos y} \]
      2. *-commutative99.7%

        \[\leadsto \color{blue}{\sin y \cdot z} + x \cdot \cos y \]
      3. fma-def99.7%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    3. Applied egg-rr99.7%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    4. Taylor expanded in z around 0 94.4%

      \[\leadsto \color{blue}{\cos y \cdot x} \]

    if -2.40000000000000011e164 < x < 2.5000000000000001e75

    1. Initial program 99.8%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Taylor expanded in y around 0 89.7%

      \[\leadsto \color{blue}{x} + z \cdot \sin y \]
  3. Recombined 2 regimes into one program.
  4. Final simplification91.1%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -2.4 \cdot 10^{+164} \lor \neg \left(x \leq 2.5 \cdot 10^{+75}\right):\\ \;\;\;\;x \cdot \cos y\\ \mathbf{else}:\\ \;\;\;\;x + \sin y \cdot z\\ \end{array} \]

Alternative 4: 74.0% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;y \leq -170000 \lor \neg \left(y \leq 0.00011\right):\\ \;\;\;\;\sin y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= y -170000.0) (not (<= y 0.00011))) (* (sin y) z) (+ x (* y z))))
double code(double x, double y, double z) {
	double tmp;
	if ((y <= -170000.0) || !(y <= 0.00011)) {
		tmp = sin(y) * z;
	} 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 <= (-170000.0d0)) .or. (.not. (y <= 0.00011d0))) then
        tmp = sin(y) * z
    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 <= -170000.0) || !(y <= 0.00011)) {
		tmp = Math.sin(y) * z;
	} else {
		tmp = x + (y * z);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (y <= -170000.0) or not (y <= 0.00011):
		tmp = math.sin(y) * z
	else:
		tmp = x + (y * z)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((y <= -170000.0) || !(y <= 0.00011))
		tmp = Float64(sin(y) * z);
	else
		tmp = Float64(x + Float64(y * z));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((y <= -170000.0) || ~((y <= 0.00011)))
		tmp = sin(y) * z;
	else
		tmp = x + (y * z);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[y, -170000.0], N[Not[LessEqual[y, 0.00011]], $MachinePrecision]], N[(N[Sin[y], $MachinePrecision] * z), $MachinePrecision], N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;y \leq -170000 \lor \neg \left(y \leq 0.00011\right):\\
\;\;\;\;\sin y \cdot z\\

\mathbf{else}:\\
\;\;\;\;x + y \cdot z\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if y < -1.7e5 or 1.10000000000000004e-4 < y

    1. Initial program 99.6%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Taylor expanded in x around 0 53.1%

      \[\leadsto \color{blue}{z \cdot \sin y} \]

    if -1.7e5 < y < 1.10000000000000004e-4

    1. Initial program 100.0%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Taylor expanded in y around 0 99.4%

      \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification78.4%

    \[\leadsto \begin{array}{l} \mathbf{if}\;y \leq -170000 \lor \neg \left(y \leq 0.00011\right):\\ \;\;\;\;\sin y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x + y \cdot z\\ \end{array} \]

Alternative 5: 74.5% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;z \leq -3.9 \cdot 10^{+99} \lor \neg \left(z \leq 520000\right):\\ \;\;\;\;\sin y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x \cdot \cos y\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (or (<= z -3.9e+99) (not (<= z 520000.0))) (* (sin y) z) (* x (cos y))))
double code(double x, double y, double z) {
	double tmp;
	if ((z <= -3.9e+99) || !(z <= 520000.0)) {
		tmp = sin(y) * z;
	} else {
		tmp = x * cos(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 <= (-3.9d+99)) .or. (.not. (z <= 520000.0d0))) then
        tmp = sin(y) * z
    else
        tmp = x * cos(y)
    end if
    code = tmp
end function
public static double code(double x, double y, double z) {
	double tmp;
	if ((z <= -3.9e+99) || !(z <= 520000.0)) {
		tmp = Math.sin(y) * z;
	} else {
		tmp = x * Math.cos(y);
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if (z <= -3.9e+99) or not (z <= 520000.0):
		tmp = math.sin(y) * z
	else:
		tmp = x * math.cos(y)
	return tmp
function code(x, y, z)
	tmp = 0.0
	if ((z <= -3.9e+99) || !(z <= 520000.0))
		tmp = Float64(sin(y) * z);
	else
		tmp = Float64(x * cos(y));
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if ((z <= -3.9e+99) || ~((z <= 520000.0)))
		tmp = sin(y) * z;
	else
		tmp = x * cos(y);
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[Or[LessEqual[z, -3.9e+99], N[Not[LessEqual[z, 520000.0]], $MachinePrecision]], N[(N[Sin[y], $MachinePrecision] * z), $MachinePrecision], N[(x * N[Cos[y], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;z \leq -3.9 \cdot 10^{+99} \lor \neg \left(z \leq 520000\right):\\
\;\;\;\;\sin y \cdot z\\

\mathbf{else}:\\
\;\;\;\;x \cdot \cos y\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if z < -3.89999999999999995e99 or 5.2e5 < z

    1. Initial program 99.8%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Taylor expanded in x around 0 76.9%

      \[\leadsto \color{blue}{z \cdot \sin y} \]

    if -3.89999999999999995e99 < z < 5.2e5

    1. Initial program 99.8%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Step-by-step derivation
      1. +-commutative99.8%

        \[\leadsto \color{blue}{z \cdot \sin y + x \cdot \cos y} \]
      2. *-commutative99.8%

        \[\leadsto \color{blue}{\sin y \cdot z} + x \cdot \cos y \]
      3. fma-def99.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    3. Applied egg-rr99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    4. Taylor expanded in z around 0 81.4%

      \[\leadsto \color{blue}{\cos y \cdot x} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification79.7%

    \[\leadsto \begin{array}{l} \mathbf{if}\;z \leq -3.9 \cdot 10^{+99} \lor \neg \left(z \leq 520000\right):\\ \;\;\;\;\sin y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x \cdot \cos y\\ \end{array} \]

Alternative 6: 40.0% accurate, 18.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;x \leq -5 \cdot 10^{-112}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 7.2 \cdot 10^{-267}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;x \leq 1.7 \cdot 10^{-188}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 3 \cdot 10^{-90}:\\ \;\;\;\;y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \end{array} \]
(FPCore (x y z)
 :precision binary64
 (if (<= x -5e-112)
   x
   (if (<= x 7.2e-267)
     (* y z)
     (if (<= x 1.7e-188) x (if (<= x 3e-90) (* y z) x)))))
double code(double x, double y, double z) {
	double tmp;
	if (x <= -5e-112) {
		tmp = x;
	} else if (x <= 7.2e-267) {
		tmp = y * z;
	} else if (x <= 1.7e-188) {
		tmp = x;
	} else if (x <= 3e-90) {
		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 (x <= (-5d-112)) then
        tmp = x
    else if (x <= 7.2d-267) then
        tmp = y * z
    else if (x <= 1.7d-188) then
        tmp = x
    else if (x <= 3d-90) 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 (x <= -5e-112) {
		tmp = x;
	} else if (x <= 7.2e-267) {
		tmp = y * z;
	} else if (x <= 1.7e-188) {
		tmp = x;
	} else if (x <= 3e-90) {
		tmp = y * z;
	} else {
		tmp = x;
	}
	return tmp;
}
def code(x, y, z):
	tmp = 0
	if x <= -5e-112:
		tmp = x
	elif x <= 7.2e-267:
		tmp = y * z
	elif x <= 1.7e-188:
		tmp = x
	elif x <= 3e-90:
		tmp = y * z
	else:
		tmp = x
	return tmp
function code(x, y, z)
	tmp = 0.0
	if (x <= -5e-112)
		tmp = x;
	elseif (x <= 7.2e-267)
		tmp = Float64(y * z);
	elseif (x <= 1.7e-188)
		tmp = x;
	elseif (x <= 3e-90)
		tmp = Float64(y * z);
	else
		tmp = x;
	end
	return tmp
end
function tmp_2 = code(x, y, z)
	tmp = 0.0;
	if (x <= -5e-112)
		tmp = x;
	elseif (x <= 7.2e-267)
		tmp = y * z;
	elseif (x <= 1.7e-188)
		tmp = x;
	elseif (x <= 3e-90)
		tmp = y * z;
	else
		tmp = x;
	end
	tmp_2 = tmp;
end
code[x_, y_, z_] := If[LessEqual[x, -5e-112], x, If[LessEqual[x, 7.2e-267], N[(y * z), $MachinePrecision], If[LessEqual[x, 1.7e-188], x, If[LessEqual[x, 3e-90], N[(y * z), $MachinePrecision], x]]]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;x \leq -5 \cdot 10^{-112}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 7.2 \cdot 10^{-267}:\\
\;\;\;\;y \cdot z\\

\mathbf{elif}\;x \leq 1.7 \cdot 10^{-188}:\\
\;\;\;\;x\\

\mathbf{elif}\;x \leq 3 \cdot 10^{-90}:\\
\;\;\;\;y \cdot z\\

\mathbf{else}:\\
\;\;\;\;x\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if x < -5.00000000000000044e-112 or 7.2000000000000002e-267 < x < 1.70000000000000014e-188 or 3.0000000000000002e-90 < x

    1. Initial program 99.8%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Step-by-step derivation
      1. +-commutative99.8%

        \[\leadsto \color{blue}{z \cdot \sin y + x \cdot \cos y} \]
      2. *-commutative99.8%

        \[\leadsto \color{blue}{\sin y \cdot z} + x \cdot \cos y \]
      3. fma-def99.8%

        \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    3. Applied egg-rr99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
    4. Taylor expanded in y around 0 52.1%

      \[\leadsto \color{blue}{x} \]

    if -5.00000000000000044e-112 < x < 7.2000000000000002e-267 or 1.70000000000000014e-188 < x < 3.0000000000000002e-90

    1. Initial program 99.8%

      \[x \cdot \cos y + z \cdot \sin y \]
    2. Taylor expanded in y around 0 61.4%

      \[\leadsto \color{blue}{y \cdot z + x} \]
    3. Taylor expanded in y around inf 46.1%

      \[\leadsto \color{blue}{y \cdot z} \]
  3. Recombined 2 regimes into one program.
  4. Final simplification50.3%

    \[\leadsto \begin{array}{l} \mathbf{if}\;x \leq -5 \cdot 10^{-112}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 7.2 \cdot 10^{-267}:\\ \;\;\;\;y \cdot z\\ \mathbf{elif}\;x \leq 1.7 \cdot 10^{-188}:\\ \;\;\;\;x\\ \mathbf{elif}\;x \leq 3 \cdot 10^{-90}:\\ \;\;\;\;y \cdot z\\ \mathbf{else}:\\ \;\;\;\;x\\ \end{array} \]

Alternative 7: 52.0% accurate, 41.4× speedup?

\[\begin{array}{l} \\ x + y \cdot z \end{array} \]
(FPCore (x y z) :precision binary64 (+ x (* y z)))
double code(double x, double y, double z) {
	return 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 = x + (y * z)
end function
public static double code(double x, double y, double z) {
	return x + (y * z);
}
def code(x, y, z):
	return x + (y * z)
function code(x, y, z)
	return Float64(x + Float64(y * z))
end
function tmp = code(x, y, z)
	tmp = x + (y * z);
end
code[x_, y_, z_] := N[(x + N[(y * z), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
x + y \cdot z
\end{array}
Derivation
  1. Initial program 99.8%

    \[x \cdot \cos y + z \cdot \sin y \]
  2. Taylor expanded in y around 0 57.4%

    \[\leadsto \color{blue}{y \cdot z + x} \]
  3. Final simplification57.4%

    \[\leadsto x + y \cdot z \]

Alternative 8: 38.5% accurate, 207.0× speedup?

\[\begin{array}{l} \\ x \end{array} \]
(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}
Derivation
  1. Initial program 99.8%

    \[x \cdot \cos y + z \cdot \sin y \]
  2. Step-by-step derivation
    1. +-commutative99.8%

      \[\leadsto \color{blue}{z \cdot \sin y + x \cdot \cos y} \]
    2. *-commutative99.8%

      \[\leadsto \color{blue}{\sin y \cdot z} + x \cdot \cos y \]
    3. fma-def99.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
  3. Applied egg-rr99.8%

    \[\leadsto \color{blue}{\mathsf{fma}\left(\sin y, z, x \cdot \cos y\right)} \]
  4. Taylor expanded in y around 0 41.8%

    \[\leadsto \color{blue}{x} \]
  5. Final simplification41.8%

    \[\leadsto x \]

Reproduce

?
herbie shell --seed 2023174 
(FPCore (x y z)
  :name "Diagrams.ThreeD.Transform:aboutY from diagrams-lib-1.3.0.3"
  :precision binary64
  (+ (* x (cos y)) (* z (sin y))))