Linear.Quaternion:$ccos from linear-1.19.1.3

Percentage Accurate: 100.0% → 100.0%
Time: 5.9s
Alternatives: 14
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sin(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.sin(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.sin(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(sin(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = sin(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sin x \cdot \frac{\sinh y}{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 14 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: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sin(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.sin(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.sin(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(sin(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = sin(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sin x \cdot \frac{\sinh y}{y}
\end{array}

Alternative 1: 100.0% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \sin x \cdot \frac{\sinh y}{y} \end{array} \]
(FPCore (x y) :precision binary64 (* (sin x) (/ (sinh y) y)))
double code(double x, double y) {
	return sin(x) * (sinh(y) / y);
}
module fmin_fmax_functions
    implicit none
    private
    public fmax
    public fmin

    interface fmax
        module procedure fmax88
        module procedure fmax44
        module procedure fmax84
        module procedure fmax48
    end interface
    interface fmin
        module procedure fmin88
        module procedure fmin44
        module procedure fmin84
        module procedure fmin48
    end interface
contains
    real(8) function fmax88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(4) function fmax44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
    end function
    real(8) function fmax84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmax48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
    end function
    real(8) function fmin88(x, y) result (res)
        real(8), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(4) function fmin44(x, y) result (res)
        real(4), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
    end function
    real(8) function fmin84(x, y) result(res)
        real(8), intent (in) :: x
        real(4), intent (in) :: y
        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
    end function
    real(8) function fmin48(x, y) result(res)
        real(4), intent (in) :: x
        real(8), intent (in) :: y
        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
    end function
end module

real(8) function code(x, y)
use fmin_fmax_functions
    real(8), intent (in) :: x
    real(8), intent (in) :: y
    code = sin(x) * (sinh(y) / y)
end function
public static double code(double x, double y) {
	return Math.sin(x) * (Math.sinh(y) / y);
}
def code(x, y):
	return math.sin(x) * (math.sinh(y) / y)
function code(x, y)
	return Float64(sin(x) * Float64(sinh(y) / y))
end
function tmp = code(x, y)
	tmp = sin(x) * (sinh(y) / y);
end
code[x_, y_] := N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
\sin x \cdot \frac{\sinh y}{y}
\end{array}
Derivation
  1. Initial program 100.0%

    \[\sin x \cdot \frac{\sinh y}{y} \]
  2. Add Preprocessing
  3. Add Preprocessing

Alternative 2: 80.5% accurate, 0.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right) \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
(FPCore (x y)
 :precision binary64
 (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
   (if (<= t_1 (- INFINITY))
     (*
      (fma (pow x 3.0) -0.16666666666666666 x)
      (* (* y y) 0.16666666666666666))
     (if (<= t_1 1.0)
       (*
        (sin x)
        (fma
         (fma (* y y) 0.008333333333333333 0.16666666666666666)
         (* y y)
         1.0))
       (* x t_0)))))
double code(double x, double y) {
	double t_0 = sinh(y) / y;
	double t_1 = sin(x) * t_0;
	double tmp;
	if (t_1 <= -((double) INFINITY)) {
		tmp = fma(pow(x, 3.0), -0.16666666666666666, x) * ((y * y) * 0.16666666666666666);
	} else if (t_1 <= 1.0) {
		tmp = sin(x) * fma(fma((y * y), 0.008333333333333333, 0.16666666666666666), (y * y), 1.0);
	} else {
		tmp = x * t_0;
	}
	return tmp;
}
function code(x, y)
	t_0 = Float64(sinh(y) / y)
	t_1 = Float64(sin(x) * t_0)
	tmp = 0.0
	if (t_1 <= Float64(-Inf))
		tmp = Float64(fma((x ^ 3.0), -0.16666666666666666, x) * Float64(Float64(y * y) * 0.16666666666666666));
	elseif (t_1 <= 1.0)
		tmp = Float64(sin(x) * fma(fma(Float64(y * y), 0.008333333333333333, 0.16666666666666666), Float64(y * y), 1.0));
	else
		tmp = Float64(x * t_0);
	end
	return tmp
end
code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(N[Power[x, 3.0], $MachinePrecision] * -0.16666666666666666 + x), $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[(N[Sin[x], $MachinePrecision] * N[(N[(N[(y * y), $MachinePrecision] * 0.008333333333333333 + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{\sinh y}{y}\\
t_1 := \sin x \cdot t\_0\\
\mathbf{if}\;t\_1 \leq -\infty:\\
\;\;\;\;\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right) \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\

\mathbf{elif}\;t\_1 \leq 1:\\
\;\;\;\;\sin x \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right)\\

\mathbf{else}:\\
\;\;\;\;x \cdot t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 3 regimes
  2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

    1. Initial program 100.0%

      \[\sin x \cdot \frac{\sinh y}{y} \]
    2. Add Preprocessing
    3. Taylor expanded in y around 0

      \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
    4. Step-by-step derivation
      1. Applied rewrites51.6%

        \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
      2. Taylor expanded in y around inf

        \[\leadsto \sin x \cdot \left(\frac{1}{6} \cdot \color{blue}{{y}^{2}}\right) \]
      3. Step-by-step derivation
        1. Applied rewrites51.6%

          \[\leadsto \sin x \cdot \left(\left(y \cdot y\right) \cdot \color{blue}{0.16666666666666666}\right) \]
        2. Taylor expanded in x around 0

          \[\leadsto \color{blue}{\left(x \cdot \left(1 + \frac{-1}{6} \cdot {x}^{2}\right)\right)} \cdot \left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \]
        3. Step-by-step derivation
          1. Applied rewrites47.1%

            \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right)} \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \]

          if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

          1. Initial program 100.0%

            \[\sin x \cdot \frac{\sinh y}{y} \]
          2. Add Preprocessing
          3. Taylor expanded in y around 0

            \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)} \]
          4. Step-by-step derivation
            1. Applied rewrites98.8%

              \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right)} \]

            if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

            1. Initial program 100.0%

              \[\sin x \cdot \frac{\sinh y}{y} \]
            2. Add Preprocessing
            3. Taylor expanded in x around 0

              \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
            4. Step-by-step derivation
              1. Applied rewrites72.6%

                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
            5. Recombined 3 regimes into one program.
            6. Add Preprocessing

            Alternative 3: 80.5% accurate, 0.4× speedup?

            \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right) \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
            (FPCore (x y)
             :precision binary64
             (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
               (if (<= t_1 (- INFINITY))
                 (*
                  (fma (pow x 3.0) -0.16666666666666666 x)
                  (* (* y y) 0.16666666666666666))
                 (if (<= t_1 1.0)
                   (* (sin x) (fma (* 0.16666666666666666 y) y 1.0))
                   (* x t_0)))))
            double code(double x, double y) {
            	double t_0 = sinh(y) / y;
            	double t_1 = sin(x) * t_0;
            	double tmp;
            	if (t_1 <= -((double) INFINITY)) {
            		tmp = fma(pow(x, 3.0), -0.16666666666666666, x) * ((y * y) * 0.16666666666666666);
            	} else if (t_1 <= 1.0) {
            		tmp = sin(x) * fma((0.16666666666666666 * y), y, 1.0);
            	} else {
            		tmp = x * t_0;
            	}
            	return tmp;
            }
            
            function code(x, y)
            	t_0 = Float64(sinh(y) / y)
            	t_1 = Float64(sin(x) * t_0)
            	tmp = 0.0
            	if (t_1 <= Float64(-Inf))
            		tmp = Float64(fma((x ^ 3.0), -0.16666666666666666, x) * Float64(Float64(y * y) * 0.16666666666666666));
            	elseif (t_1 <= 1.0)
            		tmp = Float64(sin(x) * fma(Float64(0.16666666666666666 * y), y, 1.0));
            	else
            		tmp = Float64(x * t_0);
            	end
            	return tmp
            end
            
            code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(N[Power[x, 3.0], $MachinePrecision] * -0.16666666666666666 + x), $MachinePrecision] * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[(N[Sin[x], $MachinePrecision] * N[(N[(0.16666666666666666 * y), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]]]
            
            \begin{array}{l}
            
            \\
            \begin{array}{l}
            t_0 := \frac{\sinh y}{y}\\
            t_1 := \sin x \cdot t\_0\\
            \mathbf{if}\;t\_1 \leq -\infty:\\
            \;\;\;\;\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right) \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\
            
            \mathbf{elif}\;t\_1 \leq 1:\\
            \;\;\;\;\sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\
            
            \mathbf{else}:\\
            \;\;\;\;x \cdot t\_0\\
            
            
            \end{array}
            \end{array}
            
            Derivation
            1. Split input into 3 regimes
            2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

              1. Initial program 100.0%

                \[\sin x \cdot \frac{\sinh y}{y} \]
              2. Add Preprocessing
              3. Taylor expanded in y around 0

                \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
              4. Step-by-step derivation
                1. Applied rewrites51.6%

                  \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                2. Taylor expanded in y around inf

                  \[\leadsto \sin x \cdot \left(\frac{1}{6} \cdot \color{blue}{{y}^{2}}\right) \]
                3. Step-by-step derivation
                  1. Applied rewrites51.6%

                    \[\leadsto \sin x \cdot \left(\left(y \cdot y\right) \cdot \color{blue}{0.16666666666666666}\right) \]
                  2. Taylor expanded in x around 0

                    \[\leadsto \color{blue}{\left(x \cdot \left(1 + \frac{-1}{6} \cdot {x}^{2}\right)\right)} \cdot \left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \]
                  3. Step-by-step derivation
                    1. Applied rewrites47.1%

                      \[\leadsto \color{blue}{\mathsf{fma}\left({x}^{3}, -0.16666666666666666, x\right)} \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \]

                    if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

                    1. Initial program 100.0%

                      \[\sin x \cdot \frac{\sinh y}{y} \]
                    2. Add Preprocessing
                    3. Taylor expanded in y around 0

                      \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
                    4. Step-by-step derivation
                      1. Applied rewrites98.3%

                        \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                      2. Step-by-step derivation
                        1. Applied rewrites98.3%

                          \[\leadsto \sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, \color{blue}{y}, 1\right) \]

                        if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                        1. Initial program 100.0%

                          \[\sin x \cdot \frac{\sinh y}{y} \]
                        2. Add Preprocessing
                        3. Taylor expanded in x around 0

                          \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                        4. Step-by-step derivation
                          1. Applied rewrites72.6%

                            \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                        5. Recombined 3 regimes into one program.
                        6. Add Preprocessing

                        Alternative 4: 73.2% accurate, 0.4× speedup?

                        \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
                        (FPCore (x y)
                         :precision binary64
                         (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
                           (if (<= t_1 (- INFINITY))
                             (fma (* -0.16666666666666666 (* x x)) x x)
                             (if (<= t_1 1.0)
                               (* (sin x) (fma (* 0.16666666666666666 y) y 1.0))
                               (* x t_0)))))
                        double code(double x, double y) {
                        	double t_0 = sinh(y) / y;
                        	double t_1 = sin(x) * t_0;
                        	double tmp;
                        	if (t_1 <= -((double) INFINITY)) {
                        		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                        	} else if (t_1 <= 1.0) {
                        		tmp = sin(x) * fma((0.16666666666666666 * y), y, 1.0);
                        	} else {
                        		tmp = x * t_0;
                        	}
                        	return tmp;
                        }
                        
                        function code(x, y)
                        	t_0 = Float64(sinh(y) / y)
                        	t_1 = Float64(sin(x) * t_0)
                        	tmp = 0.0
                        	if (t_1 <= Float64(-Inf))
                        		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                        	elseif (t_1 <= 1.0)
                        		tmp = Float64(sin(x) * fma(Float64(0.16666666666666666 * y), y, 1.0));
                        	else
                        		tmp = Float64(x * t_0);
                        	end
                        	return tmp
                        end
                        
                        code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[(N[Sin[x], $MachinePrecision] * N[(N[(0.16666666666666666 * y), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]]]
                        
                        \begin{array}{l}
                        
                        \\
                        \begin{array}{l}
                        t_0 := \frac{\sinh y}{y}\\
                        t_1 := \sin x \cdot t\_0\\
                        \mathbf{if}\;t\_1 \leq -\infty:\\
                        \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                        
                        \mathbf{elif}\;t\_1 \leq 1:\\
                        \;\;\;\;\sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\
                        
                        \mathbf{else}:\\
                        \;\;\;\;x \cdot t\_0\\
                        
                        
                        \end{array}
                        \end{array}
                        
                        Derivation
                        1. Split input into 3 regimes
                        2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

                          1. Initial program 100.0%

                            \[\sin x \cdot \frac{\sinh y}{y} \]
                          2. Add Preprocessing
                          3. Taylor expanded in y around 0

                            \[\leadsto \color{blue}{\sin x} \]
                          4. Step-by-step derivation
                            1. Applied rewrites2.8%

                              \[\leadsto \color{blue}{\sin x} \]
                            2. Taylor expanded in x around 0

                              \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                            3. Step-by-step derivation
                              1. Applied rewrites21.7%

                                \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                              2. Step-by-step derivation
                                1. Applied rewrites21.7%

                                  \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

                                1. Initial program 100.0%

                                  \[\sin x \cdot \frac{\sinh y}{y} \]
                                2. Add Preprocessing
                                3. Taylor expanded in y around 0

                                  \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
                                4. Step-by-step derivation
                                  1. Applied rewrites98.3%

                                    \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                  2. Step-by-step derivation
                                    1. Applied rewrites98.3%

                                      \[\leadsto \sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, \color{blue}{y}, 1\right) \]

                                    if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                    1. Initial program 100.0%

                                      \[\sin x \cdot \frac{\sinh y}{y} \]
                                    2. Add Preprocessing
                                    3. Taylor expanded in x around 0

                                      \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                    4. Step-by-step derivation
                                      1. Applied rewrites72.6%

                                        \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                    5. Recombined 3 regimes into one program.
                                    6. Add Preprocessing

                                    Alternative 5: 73.0% accurate, 0.4× speedup?

                                    \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ t_1 := \sin x \cdot t\_0\\ \mathbf{if}\;t\_1 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{elif}\;t\_1 \leq 1:\\ \;\;\;\;\sin x\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
                                    (FPCore (x y)
                                     :precision binary64
                                     (let* ((t_0 (/ (sinh y) y)) (t_1 (* (sin x) t_0)))
                                       (if (<= t_1 (- INFINITY))
                                         (fma (* -0.16666666666666666 (* x x)) x x)
                                         (if (<= t_1 1.0) (sin x) (* x t_0)))))
                                    double code(double x, double y) {
                                    	double t_0 = sinh(y) / y;
                                    	double t_1 = sin(x) * t_0;
                                    	double tmp;
                                    	if (t_1 <= -((double) INFINITY)) {
                                    		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                    	} else if (t_1 <= 1.0) {
                                    		tmp = sin(x);
                                    	} else {
                                    		tmp = x * t_0;
                                    	}
                                    	return tmp;
                                    }
                                    
                                    function code(x, y)
                                    	t_0 = Float64(sinh(y) / y)
                                    	t_1 = Float64(sin(x) * t_0)
                                    	tmp = 0.0
                                    	if (t_1 <= Float64(-Inf))
                                    		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                    	elseif (t_1 <= 1.0)
                                    		tmp = sin(x);
                                    	else
                                    		tmp = Float64(x * t_0);
                                    	end
                                    	return tmp
                                    end
                                    
                                    code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, Block[{t$95$1 = N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision]}, If[LessEqual[t$95$1, (-Infinity)], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], If[LessEqual[t$95$1, 1.0], N[Sin[x], $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]]]
                                    
                                    \begin{array}{l}
                                    
                                    \\
                                    \begin{array}{l}
                                    t_0 := \frac{\sinh y}{y}\\
                                    t_1 := \sin x \cdot t\_0\\
                                    \mathbf{if}\;t\_1 \leq -\infty:\\
                                    \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                    
                                    \mathbf{elif}\;t\_1 \leq 1:\\
                                    \;\;\;\;\sin x\\
                                    
                                    \mathbf{else}:\\
                                    \;\;\;\;x \cdot t\_0\\
                                    
                                    
                                    \end{array}
                                    \end{array}
                                    
                                    Derivation
                                    1. Split input into 3 regimes
                                    2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

                                      1. Initial program 100.0%

                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                      2. Add Preprocessing
                                      3. Taylor expanded in y around 0

                                        \[\leadsto \color{blue}{\sin x} \]
                                      4. Step-by-step derivation
                                        1. Applied rewrites2.8%

                                          \[\leadsto \color{blue}{\sin x} \]
                                        2. Taylor expanded in x around 0

                                          \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                        3. Step-by-step derivation
                                          1. Applied rewrites21.7%

                                            \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                          2. Step-by-step derivation
                                            1. Applied rewrites21.7%

                                              \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                            if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

                                            1. Initial program 100.0%

                                              \[\sin x \cdot \frac{\sinh y}{y} \]
                                            2. Add Preprocessing
                                            3. Taylor expanded in y around 0

                                              \[\leadsto \color{blue}{\sin x} \]
                                            4. Step-by-step derivation
                                              1. Applied rewrites97.4%

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

                                              if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                              1. Initial program 100.0%

                                                \[\sin x \cdot \frac{\sinh y}{y} \]
                                              2. Add Preprocessing
                                              3. Taylor expanded in x around 0

                                                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                              4. Step-by-step derivation
                                                1. Applied rewrites72.6%

                                                  \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                              5. Recombined 3 regimes into one program.
                                              6. Add Preprocessing

                                              Alternative 6: 70.5% accurate, 0.4× speedup?

                                              \[\begin{array}{l} \\ \begin{array}{l} t_0 := \sin x \cdot \frac{\sinh y}{y}\\ \mathbf{if}\;t\_0 \leq -\infty:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{elif}\;t\_0 \leq 1:\\ \;\;\;\;\sin x\\ \mathbf{else}:\\ \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\ \end{array} \end{array} \]
                                              (FPCore (x y)
                                               :precision binary64
                                               (let* ((t_0 (* (sin x) (/ (sinh y) y))))
                                                 (if (<= t_0 (- INFINITY))
                                                   (fma (* -0.16666666666666666 (* x x)) x x)
                                                   (if (<= t_0 1.0)
                                                     (sin x)
                                                     (*
                                                      x
                                                      (fma
                                                       (fma
                                                        (fma 0.0001984126984126984 (* y y) 0.008333333333333333)
                                                        (* y y)
                                                        0.16666666666666666)
                                                       (* y y)
                                                       1.0))))))
                                              double code(double x, double y) {
                                              	double t_0 = sin(x) * (sinh(y) / y);
                                              	double tmp;
                                              	if (t_0 <= -((double) INFINITY)) {
                                              		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                              	} else if (t_0 <= 1.0) {
                                              		tmp = sin(x);
                                              	} else {
                                              		tmp = x * fma(fma(fma(0.0001984126984126984, (y * y), 0.008333333333333333), (y * y), 0.16666666666666666), (y * y), 1.0);
                                              	}
                                              	return tmp;
                                              }
                                              
                                              function code(x, y)
                                              	t_0 = Float64(sin(x) * Float64(sinh(y) / y))
                                              	tmp = 0.0
                                              	if (t_0 <= Float64(-Inf))
                                              		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                              	elseif (t_0 <= 1.0)
                                              		tmp = sin(x);
                                              	else
                                              		tmp = Float64(x * fma(fma(fma(0.0001984126984126984, Float64(y * y), 0.008333333333333333), Float64(y * y), 0.16666666666666666), Float64(y * y), 1.0));
                                              	end
                                              	return tmp
                                              end
                                              
                                              code[x_, y_] := Block[{t$95$0 = N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision]}, If[LessEqual[t$95$0, (-Infinity)], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], If[LessEqual[t$95$0, 1.0], N[Sin[x], $MachinePrecision], N[(x * N[(N[(N[(0.0001984126984126984 * N[(y * y), $MachinePrecision] + 0.008333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]]]]
                                              
                                              \begin{array}{l}
                                              
                                              \\
                                              \begin{array}{l}
                                              t_0 := \sin x \cdot \frac{\sinh y}{y}\\
                                              \mathbf{if}\;t\_0 \leq -\infty:\\
                                              \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                              
                                              \mathbf{elif}\;t\_0 \leq 1:\\
                                              \;\;\;\;\sin x\\
                                              
                                              \mathbf{else}:\\
                                              \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\
                                              
                                              
                                              \end{array}
                                              \end{array}
                                              
                                              Derivation
                                              1. Split input into 3 regimes
                                              2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -inf.0

                                                1. Initial program 100.0%

                                                  \[\sin x \cdot \frac{\sinh y}{y} \]
                                                2. Add Preprocessing
                                                3. Taylor expanded in y around 0

                                                  \[\leadsto \color{blue}{\sin x} \]
                                                4. Step-by-step derivation
                                                  1. Applied rewrites2.8%

                                                    \[\leadsto \color{blue}{\sin x} \]
                                                  2. Taylor expanded in x around 0

                                                    \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                  3. Step-by-step derivation
                                                    1. Applied rewrites21.7%

                                                      \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                    2. Step-by-step derivation
                                                      1. Applied rewrites21.7%

                                                        \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                      if -inf.0 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

                                                      1. Initial program 100.0%

                                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                                      2. Add Preprocessing
                                                      3. Taylor expanded in y around 0

                                                        \[\leadsto \color{blue}{\sin x} \]
                                                      4. Step-by-step derivation
                                                        1. Applied rewrites97.4%

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

                                                        if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                        1. Initial program 100.0%

                                                          \[\sin x \cdot \frac{\sinh y}{y} \]
                                                        2. Add Preprocessing
                                                        3. Taylor expanded in y around 0

                                                          \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)} \]
                                                        4. Step-by-step derivation
                                                          1. Applied rewrites85.5%

                                                            \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)} \]
                                                          2. Taylor expanded in x around 0

                                                            \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\frac{1}{5040}, y \cdot y, \frac{1}{120}\right), y \cdot y, \frac{1}{6}\right), y \cdot y, 1\right) \]
                                                          3. Step-by-step derivation
                                                            1. Applied rewrites60.8%

                                                              \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \]
                                                          4. Recombined 3 regimes into one program.
                                                          5. Add Preprocessing

                                                          Alternative 7: 89.1% accurate, 0.6× speedup?

                                                          \[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{\sinh y}{y}\\ \mathbf{if}\;\sin x \cdot t\_0 \leq 1:\\ \;\;\;\;\sin x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot t\_0\\ \end{array} \end{array} \]
                                                          (FPCore (x y)
                                                           :precision binary64
                                                           (let* ((t_0 (/ (sinh y) y)))
                                                             (if (<= (* (sin x) t_0) 1.0)
                                                               (*
                                                                (sin x)
                                                                (fma
                                                                 (fma
                                                                  (fma 0.0001984126984126984 (* y y) 0.008333333333333333)
                                                                  (* y y)
                                                                  0.16666666666666666)
                                                                 (* y y)
                                                                 1.0))
                                                               (* x t_0))))
                                                          double code(double x, double y) {
                                                          	double t_0 = sinh(y) / y;
                                                          	double tmp;
                                                          	if ((sin(x) * t_0) <= 1.0) {
                                                          		tmp = sin(x) * fma(fma(fma(0.0001984126984126984, (y * y), 0.008333333333333333), (y * y), 0.16666666666666666), (y * y), 1.0);
                                                          	} else {
                                                          		tmp = x * t_0;
                                                          	}
                                                          	return tmp;
                                                          }
                                                          
                                                          function code(x, y)
                                                          	t_0 = Float64(sinh(y) / y)
                                                          	tmp = 0.0
                                                          	if (Float64(sin(x) * t_0) <= 1.0)
                                                          		tmp = Float64(sin(x) * fma(fma(fma(0.0001984126984126984, Float64(y * y), 0.008333333333333333), Float64(y * y), 0.16666666666666666), Float64(y * y), 1.0));
                                                          	else
                                                          		tmp = Float64(x * t_0);
                                                          	end
                                                          	return tmp
                                                          end
                                                          
                                                          code[x_, y_] := Block[{t$95$0 = N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]}, If[LessEqual[N[(N[Sin[x], $MachinePrecision] * t$95$0), $MachinePrecision], 1.0], N[(N[Sin[x], $MachinePrecision] * N[(N[(N[(0.0001984126984126984 * N[(y * y), $MachinePrecision] + 0.008333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision], N[(x * t$95$0), $MachinePrecision]]]
                                                          
                                                          \begin{array}{l}
                                                          
                                                          \\
                                                          \begin{array}{l}
                                                          t_0 := \frac{\sinh y}{y}\\
                                                          \mathbf{if}\;\sin x \cdot t\_0 \leq 1:\\
                                                          \;\;\;\;\sin x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\
                                                          
                                                          \mathbf{else}:\\
                                                          \;\;\;\;x \cdot t\_0\\
                                                          
                                                          
                                                          \end{array}
                                                          \end{array}
                                                          
                                                          Derivation
                                                          1. Split input into 2 regimes
                                                          2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 1

                                                            1. Initial program 100.0%

                                                              \[\sin x \cdot \frac{\sinh y}{y} \]
                                                            2. Add Preprocessing
                                                            3. Taylor expanded in y around 0

                                                              \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)} \]
                                                            4. Step-by-step derivation
                                                              1. Applied rewrites94.8%

                                                                \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)} \]

                                                              if 1 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                              1. Initial program 100.0%

                                                                \[\sin x \cdot \frac{\sinh y}{y} \]
                                                              2. Add Preprocessing
                                                              3. Taylor expanded in x around 0

                                                                \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                                              4. Step-by-step derivation
                                                                1. Applied rewrites72.6%

                                                                  \[\leadsto \color{blue}{x} \cdot \frac{\sinh y}{y} \]
                                                              5. Recombined 2 regimes into one program.
                                                              6. Add Preprocessing

                                                              Alternative 8: 44.3% accurate, 0.9× speedup?

                                                              \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right) \cdot y\right) \cdot y\right)\\ \end{array} \end{array} \]
                                                              (FPCore (x y)
                                                               :precision binary64
                                                               (if (<= (* (sin x) (/ (sinh y) y)) 0.02)
                                                                 (fma (* -0.16666666666666666 (* x x)) x x)
                                                                 (* x (* (* (fma (* y y) 0.008333333333333333 0.16666666666666666) y) y))))
                                                              double code(double x, double y) {
                                                              	double tmp;
                                                              	if ((sin(x) * (sinh(y) / y)) <= 0.02) {
                                                              		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                                              	} else {
                                                              		tmp = x * ((fma((y * y), 0.008333333333333333, 0.16666666666666666) * y) * y);
                                                              	}
                                                              	return tmp;
                                                              }
                                                              
                                                              function code(x, y)
                                                              	tmp = 0.0
                                                              	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 0.02)
                                                              		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                                              	else
                                                              		tmp = Float64(x * Float64(Float64(fma(Float64(y * y), 0.008333333333333333, 0.16666666666666666) * y) * y));
                                                              	end
                                                              	return tmp
                                                              end
                                                              
                                                              code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], N[(x * N[(N[(N[(N[(y * y), $MachinePrecision] * 0.008333333333333333 + 0.16666666666666666), $MachinePrecision] * y), $MachinePrecision] * y), $MachinePrecision]), $MachinePrecision]]
                                                              
                                                              \begin{array}{l}
                                                              
                                                              \\
                                                              \begin{array}{l}
                                                              \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\
                                                              \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                                              
                                                              \mathbf{else}:\\
                                                              \;\;\;\;x \cdot \left(\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right) \cdot y\right) \cdot y\right)\\
                                                              
                                                              
                                                              \end{array}
                                                              \end{array}
                                                              
                                                              Derivation
                                                              1. Split input into 2 regimes
                                                              2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.0200000000000000004

                                                                1. Initial program 100.0%

                                                                  \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                2. Add Preprocessing
                                                                3. Taylor expanded in y around 0

                                                                  \[\leadsto \color{blue}{\sin x} \]
                                                                4. Step-by-step derivation
                                                                  1. Applied rewrites54.9%

                                                                    \[\leadsto \color{blue}{\sin x} \]
                                                                  2. Taylor expanded in x around 0

                                                                    \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                                  3. Step-by-step derivation
                                                                    1. Applied rewrites50.8%

                                                                      \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                                    2. Step-by-step derivation
                                                                      1. Applied rewrites50.8%

                                                                        \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                                      if 0.0200000000000000004 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                                      1. Initial program 100.0%

                                                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                      2. Add Preprocessing
                                                                      3. Taylor expanded in y around 0

                                                                        \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)} \]
                                                                      4. Step-by-step derivation
                                                                        1. Applied rewrites85.7%

                                                                          \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right)} \]
                                                                        2. Taylor expanded in x around 0

                                                                          \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, \frac{1}{120}, \frac{1}{6}\right), y \cdot y, 1\right) \]
                                                                        3. Step-by-step derivation
                                                                          1. Applied rewrites43.2%

                                                                            \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right) \]
                                                                          2. Taylor expanded in y around inf

                                                                            \[\leadsto x \cdot \left({y}^{4} \cdot \color{blue}{\left(\frac{1}{120} + \frac{1}{6} \cdot \frac{1}{{y}^{2}}\right)}\right) \]
                                                                          3. Applied rewrites43.5%

                                                                            \[\leadsto x \cdot \left(\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right) \cdot y\right) \cdot \color{blue}{y}\right) \]
                                                                        4. Recombined 2 regimes into one program.
                                                                        5. Add Preprocessing

                                                                        Alternative 9: 40.0% accurate, 0.9× speedup?

                                                                        \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.05:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\ \end{array} \end{array} \]
                                                                        (FPCore (x y)
                                                                         :precision binary64
                                                                         (if (<= (* (sin x) (/ (sinh y) y)) -0.05)
                                                                           (fma (* -0.16666666666666666 (* x x)) x x)
                                                                           (* x (fma (* 0.16666666666666666 y) y 1.0))))
                                                                        double code(double x, double y) {
                                                                        	double tmp;
                                                                        	if ((sin(x) * (sinh(y) / y)) <= -0.05) {
                                                                        		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                                                        	} else {
                                                                        		tmp = x * fma((0.16666666666666666 * y), y, 1.0);
                                                                        	}
                                                                        	return tmp;
                                                                        }
                                                                        
                                                                        function code(x, y)
                                                                        	tmp = 0.0
                                                                        	if (Float64(sin(x) * Float64(sinh(y) / y)) <= -0.05)
                                                                        		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                                                        	else
                                                                        		tmp = Float64(x * fma(Float64(0.16666666666666666 * y), y, 1.0));
                                                                        	end
                                                                        	return tmp
                                                                        end
                                                                        
                                                                        code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], -0.05], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], N[(x * N[(N[(0.16666666666666666 * y), $MachinePrecision] * y + 1.0), $MachinePrecision]), $MachinePrecision]]
                                                                        
                                                                        \begin{array}{l}
                                                                        
                                                                        \\
                                                                        \begin{array}{l}
                                                                        \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq -0.05:\\
                                                                        \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                                                        
                                                                        \mathbf{else}:\\
                                                                        \;\;\;\;x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right)\\
                                                                        
                                                                        
                                                                        \end{array}
                                                                        \end{array}
                                                                        
                                                                        Derivation
                                                                        1. Split input into 2 regimes
                                                                        2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < -0.050000000000000003

                                                                          1. Initial program 100.0%

                                                                            \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                          2. Add Preprocessing
                                                                          3. Taylor expanded in y around 0

                                                                            \[\leadsto \color{blue}{\sin x} \]
                                                                          4. Step-by-step derivation
                                                                            1. Applied rewrites24.0%

                                                                              \[\leadsto \color{blue}{\sin x} \]
                                                                            2. Taylor expanded in x around 0

                                                                              \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                                            3. Step-by-step derivation
                                                                              1. Applied rewrites17.3%

                                                                                \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                                              2. Step-by-step derivation
                                                                                1. Applied rewrites17.3%

                                                                                  \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                                                if -0.050000000000000003 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                                                1. Initial program 100.0%

                                                                                  \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                2. Add Preprocessing
                                                                                3. Taylor expanded in y around 0

                                                                                  \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
                                                                                4. Step-by-step derivation
                                                                                  1. Applied rewrites76.0%

                                                                                    \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                                                                  2. Step-by-step derivation
                                                                                    1. Applied rewrites76.0%

                                                                                      \[\leadsto \sin x \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, \color{blue}{y}, 1\right) \]
                                                                                    2. Taylor expanded in x around 0

                                                                                      \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\frac{1}{6} \cdot y, y, 1\right) \]
                                                                                    3. Step-by-step derivation
                                                                                      1. Applied rewrites56.7%

                                                                                        \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(0.16666666666666666 \cdot y, y, 1\right) \]
                                                                                    4. Recombined 2 regimes into one program.
                                                                                    5. Add Preprocessing

                                                                                    Alternative 10: 40.1% accurate, 0.9× speedup?

                                                                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\ \end{array} \end{array} \]
                                                                                    (FPCore (x y)
                                                                                     :precision binary64
                                                                                     (if (<= (* (sin x) (/ (sinh y) y)) 0.02)
                                                                                       (fma (* -0.16666666666666666 (* x x)) x x)
                                                                                       (* x (* (* y y) 0.16666666666666666))))
                                                                                    double code(double x, double y) {
                                                                                    	double tmp;
                                                                                    	if ((sin(x) * (sinh(y) / y)) <= 0.02) {
                                                                                    		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                                                                    	} else {
                                                                                    		tmp = x * ((y * y) * 0.16666666666666666);
                                                                                    	}
                                                                                    	return tmp;
                                                                                    }
                                                                                    
                                                                                    function code(x, y)
                                                                                    	tmp = 0.0
                                                                                    	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 0.02)
                                                                                    		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                                                                    	else
                                                                                    		tmp = Float64(x * Float64(Float64(y * y) * 0.16666666666666666));
                                                                                    	end
                                                                                    	return tmp
                                                                                    end
                                                                                    
                                                                                    code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], N[(x * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]]
                                                                                    
                                                                                    \begin{array}{l}
                                                                                    
                                                                                    \\
                                                                                    \begin{array}{l}
                                                                                    \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.02:\\
                                                                                    \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                                                                    
                                                                                    \mathbf{else}:\\
                                                                                    \;\;\;\;x \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\
                                                                                    
                                                                                    
                                                                                    \end{array}
                                                                                    \end{array}
                                                                                    
                                                                                    Derivation
                                                                                    1. Split input into 2 regimes
                                                                                    2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.0200000000000000004

                                                                                      1. Initial program 100.0%

                                                                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                      2. Add Preprocessing
                                                                                      3. Taylor expanded in y around 0

                                                                                        \[\leadsto \color{blue}{\sin x} \]
                                                                                      4. Step-by-step derivation
                                                                                        1. Applied rewrites54.9%

                                                                                          \[\leadsto \color{blue}{\sin x} \]
                                                                                        2. Taylor expanded in x around 0

                                                                                          \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                                                        3. Step-by-step derivation
                                                                                          1. Applied rewrites50.8%

                                                                                            \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                                                          2. Step-by-step derivation
                                                                                            1. Applied rewrites50.8%

                                                                                              \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                                                            if 0.0200000000000000004 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                                                            1. Initial program 100.0%

                                                                                              \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                            2. Add Preprocessing
                                                                                            3. Taylor expanded in y around 0

                                                                                              \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
                                                                                            4. Step-by-step derivation
                                                                                              1. Applied rewrites62.1%

                                                                                                \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                                                                              2. Taylor expanded in y around inf

                                                                                                \[\leadsto \sin x \cdot \left(\frac{1}{6} \cdot \color{blue}{{y}^{2}}\right) \]
                                                                                              3. Step-by-step derivation
                                                                                                1. Applied rewrites35.4%

                                                                                                  \[\leadsto \sin x \cdot \left(\left(y \cdot y\right) \cdot \color{blue}{0.16666666666666666}\right) \]
                                                                                                2. Taylor expanded in x around 0

                                                                                                  \[\leadsto \color{blue}{x} \cdot \left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \]
                                                                                                3. Step-by-step derivation
                                                                                                  1. Applied rewrites31.2%

                                                                                                    \[\leadsto \color{blue}{x} \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \]
                                                                                                4. Recombined 2 regimes into one program.
                                                                                                5. Add Preprocessing

                                                                                                Alternative 11: 36.3% accurate, 0.9× speedup?

                                                                                                \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.2:\\ \;\;\;\;x\\ \mathbf{else}:\\ \;\;\;\;x \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\ \end{array} \end{array} \]
                                                                                                (FPCore (x y)
                                                                                                 :precision binary64
                                                                                                 (if (<= (* (sin x) (/ (sinh y) y)) 0.2)
                                                                                                   x
                                                                                                   (* x (* (* y y) 0.16666666666666666))))
                                                                                                double code(double x, double y) {
                                                                                                	double tmp;
                                                                                                	if ((sin(x) * (sinh(y) / y)) <= 0.2) {
                                                                                                		tmp = x;
                                                                                                	} else {
                                                                                                		tmp = x * ((y * y) * 0.16666666666666666);
                                                                                                	}
                                                                                                	return tmp;
                                                                                                }
                                                                                                
                                                                                                module fmin_fmax_functions
                                                                                                    implicit none
                                                                                                    private
                                                                                                    public fmax
                                                                                                    public fmin
                                                                                                
                                                                                                    interface fmax
                                                                                                        module procedure fmax88
                                                                                                        module procedure fmax44
                                                                                                        module procedure fmax84
                                                                                                        module procedure fmax48
                                                                                                    end interface
                                                                                                    interface fmin
                                                                                                        module procedure fmin88
                                                                                                        module procedure fmin44
                                                                                                        module procedure fmin84
                                                                                                        module procedure fmin48
                                                                                                    end interface
                                                                                                contains
                                                                                                    real(8) function fmax88(x, y) result (res)
                                                                                                        real(8), intent (in) :: x
                                                                                                        real(8), intent (in) :: y
                                                                                                        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(4) function fmax44(x, y) result (res)
                                                                                                        real(4), intent (in) :: x
                                                                                                        real(4), intent (in) :: y
                                                                                                        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(8) function fmax84(x, y) result(res)
                                                                                                        real(8), intent (in) :: x
                                                                                                        real(4), intent (in) :: y
                                                                                                        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(8) function fmax48(x, y) result(res)
                                                                                                        real(4), intent (in) :: x
                                                                                                        real(8), intent (in) :: y
                                                                                                        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(8) function fmin88(x, y) result (res)
                                                                                                        real(8), intent (in) :: x
                                                                                                        real(8), intent (in) :: y
                                                                                                        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(4) function fmin44(x, y) result (res)
                                                                                                        real(4), intent (in) :: x
                                                                                                        real(4), intent (in) :: y
                                                                                                        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(8) function fmin84(x, y) result(res)
                                                                                                        real(8), intent (in) :: x
                                                                                                        real(4), intent (in) :: y
                                                                                                        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
                                                                                                    end function
                                                                                                    real(8) function fmin48(x, y) result(res)
                                                                                                        real(4), intent (in) :: x
                                                                                                        real(8), intent (in) :: y
                                                                                                        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
                                                                                                    end function
                                                                                                end module
                                                                                                
                                                                                                real(8) function code(x, y)
                                                                                                use fmin_fmax_functions
                                                                                                    real(8), intent (in) :: x
                                                                                                    real(8), intent (in) :: y
                                                                                                    real(8) :: tmp
                                                                                                    if ((sin(x) * (sinh(y) / y)) <= 0.2d0) then
                                                                                                        tmp = x
                                                                                                    else
                                                                                                        tmp = x * ((y * y) * 0.16666666666666666d0)
                                                                                                    end if
                                                                                                    code = tmp
                                                                                                end function
                                                                                                
                                                                                                public static double code(double x, double y) {
                                                                                                	double tmp;
                                                                                                	if ((Math.sin(x) * (Math.sinh(y) / y)) <= 0.2) {
                                                                                                		tmp = x;
                                                                                                	} else {
                                                                                                		tmp = x * ((y * y) * 0.16666666666666666);
                                                                                                	}
                                                                                                	return tmp;
                                                                                                }
                                                                                                
                                                                                                def code(x, y):
                                                                                                	tmp = 0
                                                                                                	if (math.sin(x) * (math.sinh(y) / y)) <= 0.2:
                                                                                                		tmp = x
                                                                                                	else:
                                                                                                		tmp = x * ((y * y) * 0.16666666666666666)
                                                                                                	return tmp
                                                                                                
                                                                                                function code(x, y)
                                                                                                	tmp = 0.0
                                                                                                	if (Float64(sin(x) * Float64(sinh(y) / y)) <= 0.2)
                                                                                                		tmp = x;
                                                                                                	else
                                                                                                		tmp = Float64(x * Float64(Float64(y * y) * 0.16666666666666666));
                                                                                                	end
                                                                                                	return tmp
                                                                                                end
                                                                                                
                                                                                                function tmp_2 = code(x, y)
                                                                                                	tmp = 0.0;
                                                                                                	if ((sin(x) * (sinh(y) / y)) <= 0.2)
                                                                                                		tmp = x;
                                                                                                	else
                                                                                                		tmp = x * ((y * y) * 0.16666666666666666);
                                                                                                	end
                                                                                                	tmp_2 = tmp;
                                                                                                end
                                                                                                
                                                                                                code[x_, y_] := If[LessEqual[N[(N[Sin[x], $MachinePrecision] * N[(N[Sinh[y], $MachinePrecision] / y), $MachinePrecision]), $MachinePrecision], 0.2], x, N[(x * N[(N[(y * y), $MachinePrecision] * 0.16666666666666666), $MachinePrecision]), $MachinePrecision]]
                                                                                                
                                                                                                \begin{array}{l}
                                                                                                
                                                                                                \\
                                                                                                \begin{array}{l}
                                                                                                \mathbf{if}\;\sin x \cdot \frac{\sinh y}{y} \leq 0.2:\\
                                                                                                \;\;\;\;x\\
                                                                                                
                                                                                                \mathbf{else}:\\
                                                                                                \;\;\;\;x \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right)\\
                                                                                                
                                                                                                
                                                                                                \end{array}
                                                                                                \end{array}
                                                                                                
                                                                                                Derivation
                                                                                                1. Split input into 2 regimes
                                                                                                2. if (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y)) < 0.20000000000000001

                                                                                                  1. Initial program 100.0%

                                                                                                    \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                  2. Add Preprocessing
                                                                                                  3. Taylor expanded in y around 0

                                                                                                    \[\leadsto \color{blue}{\sin x} \]
                                                                                                  4. Step-by-step derivation
                                                                                                    1. Applied rewrites56.6%

                                                                                                      \[\leadsto \color{blue}{\sin x} \]
                                                                                                    2. Taylor expanded in x around 0

                                                                                                      \[\leadsto x \]
                                                                                                    3. Step-by-step derivation
                                                                                                      1. Applied rewrites40.7%

                                                                                                        \[\leadsto x \]

                                                                                                      if 0.20000000000000001 < (*.f64 (sin.f64 x) (/.f64 (sinh.f64 y) y))

                                                                                                      1. Initial program 100.0%

                                                                                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                      2. Add Preprocessing
                                                                                                      3. Taylor expanded in y around 0

                                                                                                        \[\leadsto \sin x \cdot \color{blue}{\left(1 + \frac{1}{6} \cdot {y}^{2}\right)} \]
                                                                                                      4. Step-by-step derivation
                                                                                                        1. Applied rewrites59.7%

                                                                                                          \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(y \cdot y, 0.16666666666666666, 1\right)} \]
                                                                                                        2. Taylor expanded in y around inf

                                                                                                          \[\leadsto \sin x \cdot \left(\frac{1}{6} \cdot \color{blue}{{y}^{2}}\right) \]
                                                                                                        3. Step-by-step derivation
                                                                                                          1. Applied rewrites37.3%

                                                                                                            \[\leadsto \sin x \cdot \left(\left(y \cdot y\right) \cdot \color{blue}{0.16666666666666666}\right) \]
                                                                                                          2. Taylor expanded in x around 0

                                                                                                            \[\leadsto \color{blue}{x} \cdot \left(\left(y \cdot y\right) \cdot \frac{1}{6}\right) \]
                                                                                                          3. Step-by-step derivation
                                                                                                            1. Applied rewrites33.0%

                                                                                                              \[\leadsto \color{blue}{x} \cdot \left(\left(y \cdot y\right) \cdot 0.16666666666666666\right) \]
                                                                                                          4. Recombined 2 regimes into one program.
                                                                                                          5. Add Preprocessing

                                                                                                          Alternative 12: 55.4% accurate, 1.5× speedup?

                                                                                                          \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \leq -0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\ \end{array} \end{array} \]
                                                                                                          (FPCore (x y)
                                                                                                           :precision binary64
                                                                                                           (if (<= (sin x) -0.02)
                                                                                                             (fma (* -0.16666666666666666 (* x x)) x x)
                                                                                                             (*
                                                                                                              x
                                                                                                              (fma
                                                                                                               (fma
                                                                                                                (fma 0.0001984126984126984 (* y y) 0.008333333333333333)
                                                                                                                (* y y)
                                                                                                                0.16666666666666666)
                                                                                                               (* y y)
                                                                                                               1.0))))
                                                                                                          double code(double x, double y) {
                                                                                                          	double tmp;
                                                                                                          	if (sin(x) <= -0.02) {
                                                                                                          		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                                                                                          	} else {
                                                                                                          		tmp = x * fma(fma(fma(0.0001984126984126984, (y * y), 0.008333333333333333), (y * y), 0.16666666666666666), (y * y), 1.0);
                                                                                                          	}
                                                                                                          	return tmp;
                                                                                                          }
                                                                                                          
                                                                                                          function code(x, y)
                                                                                                          	tmp = 0.0
                                                                                                          	if (sin(x) <= -0.02)
                                                                                                          		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                                                                                          	else
                                                                                                          		tmp = Float64(x * fma(fma(fma(0.0001984126984126984, Float64(y * y), 0.008333333333333333), Float64(y * y), 0.16666666666666666), Float64(y * y), 1.0));
                                                                                                          	end
                                                                                                          	return tmp
                                                                                                          end
                                                                                                          
                                                                                                          code[x_, y_] := If[LessEqual[N[Sin[x], $MachinePrecision], -0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], N[(x * N[(N[(N[(0.0001984126984126984 * N[(y * y), $MachinePrecision] + 0.008333333333333333), $MachinePrecision] * N[(y * y), $MachinePrecision] + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]]
                                                                                                          
                                                                                                          \begin{array}{l}
                                                                                                          
                                                                                                          \\
                                                                                                          \begin{array}{l}
                                                                                                          \mathbf{if}\;\sin x \leq -0.02:\\
                                                                                                          \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                                                                                          
                                                                                                          \mathbf{else}:\\
                                                                                                          \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)\\
                                                                                                          
                                                                                                          
                                                                                                          \end{array}
                                                                                                          \end{array}
                                                                                                          
                                                                                                          Derivation
                                                                                                          1. Split input into 2 regimes
                                                                                                          2. if (sin.f64 x) < -0.0200000000000000004

                                                                                                            1. Initial program 99.9%

                                                                                                              \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                            2. Add Preprocessing
                                                                                                            3. Taylor expanded in y around 0

                                                                                                              \[\leadsto \color{blue}{\sin x} \]
                                                                                                            4. Step-by-step derivation
                                                                                                              1. Applied rewrites33.5%

                                                                                                                \[\leadsto \color{blue}{\sin x} \]
                                                                                                              2. Taylor expanded in x around 0

                                                                                                                \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                                                                              3. Step-by-step derivation
                                                                                                                1. Applied rewrites23.9%

                                                                                                                  \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                                                                                2. Step-by-step derivation
                                                                                                                  1. Applied rewrites23.9%

                                                                                                                    \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                                                                                  if -0.0200000000000000004 < (sin.f64 x)

                                                                                                                  1. Initial program 100.0%

                                                                                                                    \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                                  2. Add Preprocessing
                                                                                                                  3. Taylor expanded in y around 0

                                                                                                                    \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + {y}^{2} \cdot \left(\frac{1}{120} + \frac{1}{5040} \cdot {y}^{2}\right)\right)\right)} \]
                                                                                                                  4. Step-by-step derivation
                                                                                                                    1. Applied rewrites92.6%

                                                                                                                      \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right)} \]
                                                                                                                    2. Taylor expanded in x around 0

                                                                                                                      \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(\frac{1}{5040}, y \cdot y, \frac{1}{120}\right), y \cdot y, \frac{1}{6}\right), y \cdot y, 1\right) \]
                                                                                                                    3. Step-by-step derivation
                                                                                                                      1. Applied rewrites68.4%

                                                                                                                        \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(\mathsf{fma}\left(0.0001984126984126984, y \cdot y, 0.008333333333333333\right), y \cdot y, 0.16666666666666666\right), y \cdot y, 1\right) \]
                                                                                                                    4. Recombined 2 regimes into one program.
                                                                                                                    5. Add Preprocessing

                                                                                                                    Alternative 13: 53.1% accurate, 1.6× speedup?

                                                                                                                    \[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;\sin x \leq -0.02:\\ \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\ \mathbf{else}:\\ \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333 \cdot y, y, 0.16666666666666666\right), y \cdot y, 1\right)\\ \end{array} \end{array} \]
                                                                                                                    (FPCore (x y)
                                                                                                                     :precision binary64
                                                                                                                     (if (<= (sin x) -0.02)
                                                                                                                       (fma (* -0.16666666666666666 (* x x)) x x)
                                                                                                                       (*
                                                                                                                        x
                                                                                                                        (fma (fma (* 0.008333333333333333 y) y 0.16666666666666666) (* y y) 1.0))))
                                                                                                                    double code(double x, double y) {
                                                                                                                    	double tmp;
                                                                                                                    	if (sin(x) <= -0.02) {
                                                                                                                    		tmp = fma((-0.16666666666666666 * (x * x)), x, x);
                                                                                                                    	} else {
                                                                                                                    		tmp = x * fma(fma((0.008333333333333333 * y), y, 0.16666666666666666), (y * y), 1.0);
                                                                                                                    	}
                                                                                                                    	return tmp;
                                                                                                                    }
                                                                                                                    
                                                                                                                    function code(x, y)
                                                                                                                    	tmp = 0.0
                                                                                                                    	if (sin(x) <= -0.02)
                                                                                                                    		tmp = fma(Float64(-0.16666666666666666 * Float64(x * x)), x, x);
                                                                                                                    	else
                                                                                                                    		tmp = Float64(x * fma(fma(Float64(0.008333333333333333 * y), y, 0.16666666666666666), Float64(y * y), 1.0));
                                                                                                                    	end
                                                                                                                    	return tmp
                                                                                                                    end
                                                                                                                    
                                                                                                                    code[x_, y_] := If[LessEqual[N[Sin[x], $MachinePrecision], -0.02], N[(N[(-0.16666666666666666 * N[(x * x), $MachinePrecision]), $MachinePrecision] * x + x), $MachinePrecision], N[(x * N[(N[(N[(0.008333333333333333 * y), $MachinePrecision] * y + 0.16666666666666666), $MachinePrecision] * N[(y * y), $MachinePrecision] + 1.0), $MachinePrecision]), $MachinePrecision]]
                                                                                                                    
                                                                                                                    \begin{array}{l}
                                                                                                                    
                                                                                                                    \\
                                                                                                                    \begin{array}{l}
                                                                                                                    \mathbf{if}\;\sin x \leq -0.02:\\
                                                                                                                    \;\;\;\;\mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right)\\
                                                                                                                    
                                                                                                                    \mathbf{else}:\\
                                                                                                                    \;\;\;\;x \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333 \cdot y, y, 0.16666666666666666\right), y \cdot y, 1\right)\\
                                                                                                                    
                                                                                                                    
                                                                                                                    \end{array}
                                                                                                                    \end{array}
                                                                                                                    
                                                                                                                    Derivation
                                                                                                                    1. Split input into 2 regimes
                                                                                                                    2. if (sin.f64 x) < -0.0200000000000000004

                                                                                                                      1. Initial program 99.9%

                                                                                                                        \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                                      2. Add Preprocessing
                                                                                                                      3. Taylor expanded in y around 0

                                                                                                                        \[\leadsto \color{blue}{\sin x} \]
                                                                                                                      4. Step-by-step derivation
                                                                                                                        1. Applied rewrites33.5%

                                                                                                                          \[\leadsto \color{blue}{\sin x} \]
                                                                                                                        2. Taylor expanded in x around 0

                                                                                                                          \[\leadsto x \cdot \color{blue}{\left(1 + \frac{-1}{6} \cdot {x}^{2}\right)} \]
                                                                                                                        3. Step-by-step derivation
                                                                                                                          1. Applied rewrites23.9%

                                                                                                                            \[\leadsto \mathsf{fma}\left({x}^{3}, \color{blue}{-0.16666666666666666}, x\right) \]
                                                                                                                          2. Step-by-step derivation
                                                                                                                            1. Applied rewrites23.9%

                                                                                                                              \[\leadsto \mathsf{fma}\left(-0.16666666666666666 \cdot \left(x \cdot x\right), x, x\right) \]

                                                                                                                            if -0.0200000000000000004 < (sin.f64 x)

                                                                                                                            1. Initial program 100.0%

                                                                                                                              \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                                            2. Add Preprocessing
                                                                                                                            3. Taylor expanded in y around 0

                                                                                                                              \[\leadsto \sin x \cdot \color{blue}{\left(1 + {y}^{2} \cdot \left(\frac{1}{6} + \frac{1}{120} \cdot {y}^{2}\right)\right)} \]
                                                                                                                            4. Step-by-step derivation
                                                                                                                              1. Applied rewrites89.4%

                                                                                                                                \[\leadsto \sin x \cdot \color{blue}{\mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right)} \]
                                                                                                                              2. Taylor expanded in x around 0

                                                                                                                                \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, \frac{1}{120}, \frac{1}{6}\right), y \cdot y, 1\right) \]
                                                                                                                              3. Step-by-step derivation
                                                                                                                                1. Applied rewrites66.8%

                                                                                                                                  \[\leadsto \color{blue}{x} \cdot \mathsf{fma}\left(\mathsf{fma}\left(y \cdot y, 0.008333333333333333, 0.16666666666666666\right), y \cdot y, 1\right) \]
                                                                                                                                2. Step-by-step derivation
                                                                                                                                  1. Applied rewrites66.8%

                                                                                                                                    \[\leadsto x \cdot \mathsf{fma}\left(\mathsf{fma}\left(0.008333333333333333 \cdot y, y, 0.16666666666666666\right), \color{blue}{y} \cdot y, 1\right) \]
                                                                                                                                3. Recombined 2 regimes into one program.
                                                                                                                                4. Add Preprocessing

                                                                                                                                Alternative 14: 26.1% accurate, 217.0× speedup?

                                                                                                                                \[\begin{array}{l} \\ x \end{array} \]
                                                                                                                                (FPCore (x y) :precision binary64 x)
                                                                                                                                double code(double x, double y) {
                                                                                                                                	return x;
                                                                                                                                }
                                                                                                                                
                                                                                                                                module fmin_fmax_functions
                                                                                                                                    implicit none
                                                                                                                                    private
                                                                                                                                    public fmax
                                                                                                                                    public fmin
                                                                                                                                
                                                                                                                                    interface fmax
                                                                                                                                        module procedure fmax88
                                                                                                                                        module procedure fmax44
                                                                                                                                        module procedure fmax84
                                                                                                                                        module procedure fmax48
                                                                                                                                    end interface
                                                                                                                                    interface fmin
                                                                                                                                        module procedure fmin88
                                                                                                                                        module procedure fmin44
                                                                                                                                        module procedure fmin84
                                                                                                                                        module procedure fmin48
                                                                                                                                    end interface
                                                                                                                                contains
                                                                                                                                    real(8) function fmax88(x, y) result (res)
                                                                                                                                        real(8), intent (in) :: x
                                                                                                                                        real(8), intent (in) :: y
                                                                                                                                        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(4) function fmax44(x, y) result (res)
                                                                                                                                        real(4), intent (in) :: x
                                                                                                                                        real(4), intent (in) :: y
                                                                                                                                        res = merge(y, merge(x, max(x, y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(8) function fmax84(x, y) result(res)
                                                                                                                                        real(8), intent (in) :: x
                                                                                                                                        real(4), intent (in) :: y
                                                                                                                                        res = merge(dble(y), merge(x, max(x, dble(y)), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(8) function fmax48(x, y) result(res)
                                                                                                                                        real(4), intent (in) :: x
                                                                                                                                        real(8), intent (in) :: y
                                                                                                                                        res = merge(y, merge(dble(x), max(dble(x), y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(8) function fmin88(x, y) result (res)
                                                                                                                                        real(8), intent (in) :: x
                                                                                                                                        real(8), intent (in) :: y
                                                                                                                                        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(4) function fmin44(x, y) result (res)
                                                                                                                                        real(4), intent (in) :: x
                                                                                                                                        real(4), intent (in) :: y
                                                                                                                                        res = merge(y, merge(x, min(x, y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(8) function fmin84(x, y) result(res)
                                                                                                                                        real(8), intent (in) :: x
                                                                                                                                        real(4), intent (in) :: y
                                                                                                                                        res = merge(dble(y), merge(x, min(x, dble(y)), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                    real(8) function fmin48(x, y) result(res)
                                                                                                                                        real(4), intent (in) :: x
                                                                                                                                        real(8), intent (in) :: y
                                                                                                                                        res = merge(y, merge(dble(x), min(dble(x), y), y /= y), x /= x)
                                                                                                                                    end function
                                                                                                                                end module
                                                                                                                                
                                                                                                                                real(8) function code(x, y)
                                                                                                                                use fmin_fmax_functions
                                                                                                                                    real(8), intent (in) :: x
                                                                                                                                    real(8), intent (in) :: y
                                                                                                                                    code = x
                                                                                                                                end function
                                                                                                                                
                                                                                                                                public static double code(double x, double y) {
                                                                                                                                	return x;
                                                                                                                                }
                                                                                                                                
                                                                                                                                def code(x, y):
                                                                                                                                	return x
                                                                                                                                
                                                                                                                                function code(x, y)
                                                                                                                                	return x
                                                                                                                                end
                                                                                                                                
                                                                                                                                function tmp = code(x, y)
                                                                                                                                	tmp = x;
                                                                                                                                end
                                                                                                                                
                                                                                                                                code[x_, y_] := x
                                                                                                                                
                                                                                                                                \begin{array}{l}
                                                                                                                                
                                                                                                                                \\
                                                                                                                                x
                                                                                                                                \end{array}
                                                                                                                                
                                                                                                                                Derivation
                                                                                                                                1. Initial program 100.0%

                                                                                                                                  \[\sin x \cdot \frac{\sinh y}{y} \]
                                                                                                                                2. Add Preprocessing
                                                                                                                                3. Taylor expanded in y around 0

                                                                                                                                  \[\leadsto \color{blue}{\sin x} \]
                                                                                                                                4. Step-by-step derivation
                                                                                                                                  1. Applied rewrites44.9%

                                                                                                                                    \[\leadsto \color{blue}{\sin x} \]
                                                                                                                                  2. Taylor expanded in x around 0

                                                                                                                                    \[\leadsto x \]
                                                                                                                                  3. Step-by-step derivation
                                                                                                                                    1. Applied rewrites26.3%

                                                                                                                                      \[\leadsto x \]
                                                                                                                                    2. Add Preprocessing

                                                                                                                                    Reproduce

                                                                                                                                    ?
                                                                                                                                    herbie shell --seed 2025019 
                                                                                                                                    (FPCore (x y)
                                                                                                                                      :name "Linear.Quaternion:$ccos from linear-1.19.1.3"
                                                                                                                                      :precision binary64
                                                                                                                                      (* (sin x) (/ (sinh y) y)))