Example from Robby

Percentage Accurate: 99.8% → 99.8%
Time: 17.9s
Alternatives: 11
Speedup: 1.0×

Specification

?
\[\begin{array}{l} \\ \begin{array}{l} t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\ \left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (atan (/ (/ eh ew) (tan t)))))
   (fabs (+ (* (* ew (sin t)) (cos t_1)) (* (* eh (cos t)) (sin t_1))))))
double code(double eh, double ew, double t) {
	double t_1 = atan(((eh / ew) / tan(t)));
	return fabs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
}
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(eh, ew, t)
use fmin_fmax_functions
    real(8), intent (in) :: eh
    real(8), intent (in) :: ew
    real(8), intent (in) :: t
    real(8) :: t_1
    t_1 = atan(((eh / ew) / tan(t)))
    code = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))))
end function
public static double code(double eh, double ew, double t) {
	double t_1 = Math.atan(((eh / ew) / Math.tan(t)));
	return Math.abs((((ew * Math.sin(t)) * Math.cos(t_1)) + ((eh * Math.cos(t)) * Math.sin(t_1))));
}
def code(eh, ew, t):
	t_1 = math.atan(((eh / ew) / math.tan(t)))
	return math.fabs((((ew * math.sin(t)) * math.cos(t_1)) + ((eh * math.cos(t)) * math.sin(t_1))))
function code(eh, ew, t)
	t_1 = atan(Float64(Float64(eh / ew) / tan(t)))
	return abs(Float64(Float64(Float64(ew * sin(t)) * cos(t_1)) + Float64(Float64(eh * cos(t)) * sin(t_1))))
end
function tmp = code(eh, ew, t)
	t_1 = atan(((eh / ew) / tan(t)));
	tmp = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$1], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right|
\end{array}
\end{array}

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 11 alternatives:

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

Initial Program: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\ \left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (atan (/ (/ eh ew) (tan t)))))
   (fabs (+ (* (* ew (sin t)) (cos t_1)) (* (* eh (cos t)) (sin t_1))))))
double code(double eh, double ew, double t) {
	double t_1 = atan(((eh / ew) / tan(t)));
	return fabs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
}
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(eh, ew, t)
use fmin_fmax_functions
    real(8), intent (in) :: eh
    real(8), intent (in) :: ew
    real(8), intent (in) :: t
    real(8) :: t_1
    t_1 = atan(((eh / ew) / tan(t)))
    code = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))))
end function
public static double code(double eh, double ew, double t) {
	double t_1 = Math.atan(((eh / ew) / Math.tan(t)));
	return Math.abs((((ew * Math.sin(t)) * Math.cos(t_1)) + ((eh * Math.cos(t)) * Math.sin(t_1))));
}
def code(eh, ew, t):
	t_1 = math.atan(((eh / ew) / math.tan(t)))
	return math.fabs((((ew * math.sin(t)) * math.cos(t_1)) + ((eh * math.cos(t)) * math.sin(t_1))))
function code(eh, ew, t)
	t_1 = atan(Float64(Float64(eh / ew) / tan(t)))
	return abs(Float64(Float64(Float64(ew * sin(t)) * cos(t_1)) + Float64(Float64(eh * cos(t)) * sin(t_1))))
end
function tmp = code(eh, ew, t)
	t_1 = atan(((eh / ew) / tan(t)));
	tmp = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$1], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right|
\end{array}
\end{array}

Alternative 1: 99.8% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\ \left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (atan (/ (/ eh ew) (tan t)))))
   (fabs (+ (* (* ew (sin t)) (cos t_1)) (* (* eh (cos t)) (sin t_1))))))
double code(double eh, double ew, double t) {
	double t_1 = atan(((eh / ew) / tan(t)));
	return fabs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
}
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(eh, ew, t)
use fmin_fmax_functions
    real(8), intent (in) :: eh
    real(8), intent (in) :: ew
    real(8), intent (in) :: t
    real(8) :: t_1
    t_1 = atan(((eh / ew) / tan(t)))
    code = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))))
end function
public static double code(double eh, double ew, double t) {
	double t_1 = Math.atan(((eh / ew) / Math.tan(t)));
	return Math.abs((((ew * Math.sin(t)) * Math.cos(t_1)) + ((eh * Math.cos(t)) * Math.sin(t_1))));
}
def code(eh, ew, t):
	t_1 = math.atan(((eh / ew) / math.tan(t)))
	return math.fabs((((ew * math.sin(t)) * math.cos(t_1)) + ((eh * math.cos(t)) * math.sin(t_1))))
function code(eh, ew, t)
	t_1 = atan(Float64(Float64(eh / ew) / tan(t)))
	return abs(Float64(Float64(Float64(ew * sin(t)) * cos(t_1)) + Float64(Float64(eh * cos(t)) * sin(t_1))))
end
function tmp = code(eh, ew, t)
	t_1 = atan(((eh / ew) / tan(t)));
	tmp = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$1], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right|
\end{array}
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Add Preprocessing

Alternative 2: 99.8% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\\ \left|\left(-\frac{\sin t \cdot ew}{\cosh t\_1}\right) - \tanh t\_1 \cdot \left(\cos t \cdot eh\right)\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (asinh (/ eh (* (tan t) ew)))))
   (fabs (- (- (/ (* (sin t) ew) (cosh t_1))) (* (tanh t_1) (* (cos t) eh))))))
double code(double eh, double ew, double t) {
	double t_1 = asinh((eh / (tan(t) * ew)));
	return fabs((-((sin(t) * ew) / cosh(t_1)) - (tanh(t_1) * (cos(t) * eh))));
}
def code(eh, ew, t):
	t_1 = math.asinh((eh / (math.tan(t) * ew)))
	return math.fabs((-((math.sin(t) * ew) / math.cosh(t_1)) - (math.tanh(t_1) * (math.cos(t) * eh))))
function code(eh, ew, t)
	t_1 = asinh(Float64(eh / Float64(tan(t) * ew)))
	return abs(Float64(Float64(-Float64(Float64(sin(t) * ew) / cosh(t_1))) - Float64(tanh(t_1) * Float64(cos(t) * eh))))
end
function tmp = code(eh, ew, t)
	t_1 = asinh((eh / (tan(t) * ew)));
	tmp = abs((-((sin(t) * ew) / cosh(t_1)) - (tanh(t_1) * (cos(t) * eh))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcSinh[N[(eh / N[(N[Tan[t], $MachinePrecision] * ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[((-N[(N[(N[Sin[t], $MachinePrecision] * ew), $MachinePrecision] / N[Cosh[t$95$1], $MachinePrecision]), $MachinePrecision]) - N[(N[Tanh[t$95$1], $MachinePrecision] * N[(N[Cos[t], $MachinePrecision] * eh), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\\
\left|\left(-\frac{\sin t \cdot ew}{\cosh t\_1}\right) - \tanh t\_1 \cdot \left(\cos t \cdot eh\right)\right|
\end{array}
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Applied rewrites99.8%

    \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
  3. Add Preprocessing

Alternative 3: 98.5% accurate, 0.6× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\\ t_2 := \tanh t\_1\\ t_3 := \frac{\sin t \cdot ew}{\cosh t\_1}\\ t_4 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\ \mathbf{if}\;\left(ew \cdot \sin t\right) \cdot \cos t\_4 + \left(eh \cdot \cos t\right) \cdot \sin t\_4 \leq -5 \cdot 10^{-229}:\\ \;\;\;\;\left(-t\_3\right) - \left(\cos t \cdot eh\right) \cdot t\_2\\ \mathbf{else}:\\ \;\;\;\;\mathsf{fma}\left(t\_2 \cdot \cos t, eh, t\_3\right)\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (asinh (/ eh (* (tan t) ew))))
        (t_2 (tanh t_1))
        (t_3 (/ (* (sin t) ew) (cosh t_1)))
        (t_4 (atan (/ (/ eh ew) (tan t)))))
   (if (<=
        (+ (* (* ew (sin t)) (cos t_4)) (* (* eh (cos t)) (sin t_4)))
        -5e-229)
     (- (- t_3) (* (* (cos t) eh) t_2))
     (fma (* t_2 (cos t)) eh t_3))))
double code(double eh, double ew, double t) {
	double t_1 = asinh((eh / (tan(t) * ew)));
	double t_2 = tanh(t_1);
	double t_3 = (sin(t) * ew) / cosh(t_1);
	double t_4 = atan(((eh / ew) / tan(t)));
	double tmp;
	if ((((ew * sin(t)) * cos(t_4)) + ((eh * cos(t)) * sin(t_4))) <= -5e-229) {
		tmp = -t_3 - ((cos(t) * eh) * t_2);
	} else {
		tmp = fma((t_2 * cos(t)), eh, t_3);
	}
	return tmp;
}
function code(eh, ew, t)
	t_1 = asinh(Float64(eh / Float64(tan(t) * ew)))
	t_2 = tanh(t_1)
	t_3 = Float64(Float64(sin(t) * ew) / cosh(t_1))
	t_4 = atan(Float64(Float64(eh / ew) / tan(t)))
	tmp = 0.0
	if (Float64(Float64(Float64(ew * sin(t)) * cos(t_4)) + Float64(Float64(eh * cos(t)) * sin(t_4))) <= -5e-229)
		tmp = Float64(Float64(-t_3) - Float64(Float64(cos(t) * eh) * t_2));
	else
		tmp = fma(Float64(t_2 * cos(t)), eh, t_3);
	end
	return tmp
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcSinh[N[(eh / N[(N[Tan[t], $MachinePrecision] * ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, Block[{t$95$2 = N[Tanh[t$95$1], $MachinePrecision]}, Block[{t$95$3 = N[(N[(N[Sin[t], $MachinePrecision] * ew), $MachinePrecision] / N[Cosh[t$95$1], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$4 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$4], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$4], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], -5e-229], N[((-t$95$3) - N[(N[(N[Cos[t], $MachinePrecision] * eh), $MachinePrecision] * t$95$2), $MachinePrecision]), $MachinePrecision], N[(N[(t$95$2 * N[Cos[t], $MachinePrecision]), $MachinePrecision] * eh + t$95$3), $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\\
t_2 := \tanh t\_1\\
t_3 := \frac{\sin t \cdot ew}{\cosh t\_1}\\
t_4 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\mathbf{if}\;\left(ew \cdot \sin t\right) \cdot \cos t\_4 + \left(eh \cdot \cos t\right) \cdot \sin t\_4 \leq -5 \cdot 10^{-229}:\\
\;\;\;\;\left(-t\_3\right) - \left(\cos t \cdot eh\right) \cdot t\_2\\

\mathbf{else}:\\
\;\;\;\;\mathsf{fma}\left(t\_2 \cdot \cos t, eh, t\_3\right)\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (*.f64 (*.f64 ew (sin.f64 t)) (cos.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))) (*.f64 (*.f64 eh (cos.f64 t)) (sin.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t)))))) < -5.00000000000000016e-229

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Applied rewrites51.4%

      \[\leadsto \color{blue}{\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \left(\cos t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} \]

    if -5.00000000000000016e-229 < (+.f64 (*.f64 (*.f64 ew (sin.f64 t)) (cos.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))) (*.f64 (*.f64 eh (cos.f64 t)) (sin.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))))

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Step-by-step derivation
      1. lift-fabs.f64N/A

        \[\leadsto \color{blue}{\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right|} \]
      2. rem-sqrt-square-revN/A

        \[\leadsto \color{blue}{\sqrt{\left(\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right) \cdot \left(\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right)}} \]
      3. sqrt-prodN/A

        \[\leadsto \color{blue}{\sqrt{\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)} \cdot \sqrt{\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)}} \]
      4. rem-square-sqrt49.8

        \[\leadsto \color{blue}{\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)} \]
      5. lift-+.f64N/A

        \[\leadsto \color{blue}{\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)} \]
      6. +-commutativeN/A

        \[\leadsto \color{blue}{\left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)} \]
    3. Applied rewrites49.8%

      \[\leadsto \color{blue}{\mathsf{fma}\left(\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \cos t, eh, \frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right)} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 4: 98.2% accurate, 1.8× speedup?

\[\begin{array}{l} \\ \left|\left(-ew \cdot \sin t\right) - \cos t \cdot \left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)\right| \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (fabs
  (-
   (- (* ew (sin t)))
   (* (cos t) (* eh (tanh (asinh (/ eh (* (tan t) ew)))))))))
double code(double eh, double ew, double t) {
	return fabs((-(ew * sin(t)) - (cos(t) * (eh * tanh(asinh((eh / (tan(t) * ew))))))));
}
def code(eh, ew, t):
	return math.fabs((-(ew * math.sin(t)) - (math.cos(t) * (eh * math.tanh(math.asinh((eh / (math.tan(t) * ew))))))))
function code(eh, ew, t)
	return abs(Float64(Float64(-Float64(ew * sin(t))) - Float64(cos(t) * Float64(eh * tanh(asinh(Float64(eh / Float64(tan(t) * ew))))))))
end
function tmp = code(eh, ew, t)
	tmp = abs((-(ew * sin(t)) - (cos(t) * (eh * tanh(asinh((eh / (tan(t) * ew))))))));
end
code[eh_, ew_, t_] := N[Abs[N[((-N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]) - N[(N[Cos[t], $MachinePrecision] * N[(eh * N[Tanh[N[ArcSinh[N[(eh / N[(N[Tan[t], $MachinePrecision] * ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

\\
\left|\left(-ew \cdot \sin t\right) - \cos t \cdot \left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)\right|
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Applied rewrites99.8%

    \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
  3. Taylor expanded in eh around 0

    \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  4. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \left|\left(-ew \cdot \color{blue}{\sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    2. lower-sin.f6498.5

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  5. Applied rewrites98.5%

    \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  6. Step-by-step derivation
    1. lift-*.f64N/A

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)}\right| \]
    2. *-commutativeN/A

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\left(\cos t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right| \]
    3. lift-*.f64N/A

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\left(\cos t \cdot eh\right)} \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right| \]
    4. associate-*l*N/A

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\cos t \cdot \left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)}\right| \]
    5. lower-*.f64N/A

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\cos t \cdot \left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)}\right| \]
    6. lower-*.f6498.5

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \cos t \cdot \color{blue}{\left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)}\right| \]
  7. Applied rewrites98.5%

    \[\leadsto \left|\left(-ew \cdot \sin t\right) - \color{blue}{\cos t \cdot \left(eh \cdot \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right)}\right| \]
  8. Add Preprocessing

Alternative 5: 92.1% accurate, 0.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \cos t \cdot eh\\ t_2 := ew \cdot \sin t\\ t_3 := \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)\\ t_4 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\ \mathbf{if}\;t\_2 \cdot \cos t\_4 + \left(eh \cdot \cos t\right) \cdot \sin t\_4 \leq 4 \cdot 10^{+60}:\\ \;\;\;\;\left|\left(-t\_2\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot t\_1\right|\\ \mathbf{else}:\\ \;\;\;\;\left|\left(-\frac{\sin t \cdot ew}{\cosh t\_3}\right) - \tanh t\_3 \cdot t\_1\right|\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (* (cos t) eh))
        (t_2 (* ew (sin t)))
        (t_3 (asinh (/ eh (* ew t))))
        (t_4 (atan (/ (/ eh ew) (tan t)))))
   (if (<= (+ (* t_2 (cos t_4)) (* (* eh (cos t)) (sin t_4))) 4e+60)
     (fabs
      (-
       (- t_2)
       (*
        (tanh
         (asinh
          (/ (fma -0.3333333333333333 (/ (* eh (pow t 2.0)) ew) (/ eh ew)) t)))
        t_1)))
     (fabs (- (- (/ (* (sin t) ew) (cosh t_3))) (* (tanh t_3) t_1))))))
double code(double eh, double ew, double t) {
	double t_1 = cos(t) * eh;
	double t_2 = ew * sin(t);
	double t_3 = asinh((eh / (ew * t)));
	double t_4 = atan(((eh / ew) / tan(t)));
	double tmp;
	if (((t_2 * cos(t_4)) + ((eh * cos(t)) * sin(t_4))) <= 4e+60) {
		tmp = fabs((-t_2 - (tanh(asinh((fma(-0.3333333333333333, ((eh * pow(t, 2.0)) / ew), (eh / ew)) / t))) * t_1)));
	} else {
		tmp = fabs((-((sin(t) * ew) / cosh(t_3)) - (tanh(t_3) * t_1)));
	}
	return tmp;
}
function code(eh, ew, t)
	t_1 = Float64(cos(t) * eh)
	t_2 = Float64(ew * sin(t))
	t_3 = asinh(Float64(eh / Float64(ew * t)))
	t_4 = atan(Float64(Float64(eh / ew) / tan(t)))
	tmp = 0.0
	if (Float64(Float64(t_2 * cos(t_4)) + Float64(Float64(eh * cos(t)) * sin(t_4))) <= 4e+60)
		tmp = abs(Float64(Float64(-t_2) - Float64(tanh(asinh(Float64(fma(-0.3333333333333333, Float64(Float64(eh * (t ^ 2.0)) / ew), Float64(eh / ew)) / t))) * t_1)));
	else
		tmp = abs(Float64(Float64(-Float64(Float64(sin(t) * ew) / cosh(t_3))) - Float64(tanh(t_3) * t_1)));
	end
	return tmp
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[(N[Cos[t], $MachinePrecision] * eh), $MachinePrecision]}, Block[{t$95$2 = N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]}, Block[{t$95$3 = N[ArcSinh[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, Block[{t$95$4 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[N[(N[(t$95$2 * N[Cos[t$95$4], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$4], $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 4e+60], N[Abs[N[((-t$95$2) - N[(N[Tanh[N[ArcSinh[N[(N[(-0.3333333333333333 * N[(N[(eh * N[Power[t, 2.0], $MachinePrecision]), $MachinePrecision] / ew), $MachinePrecision] + N[(eh / ew), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], N[Abs[N[((-N[(N[(N[Sin[t], $MachinePrecision] * ew), $MachinePrecision] / N[Cosh[t$95$3], $MachinePrecision]), $MachinePrecision]) - N[(N[Tanh[t$95$3], $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \cos t \cdot eh\\
t_2 := ew \cdot \sin t\\
t_3 := \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)\\
t_4 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\mathbf{if}\;t\_2 \cdot \cos t\_4 + \left(eh \cdot \cos t\right) \cdot \sin t\_4 \leq 4 \cdot 10^{+60}:\\
\;\;\;\;\left|\left(-t\_2\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot t\_1\right|\\

\mathbf{else}:\\
\;\;\;\;\left|\left(-\frac{\sin t \cdot ew}{\cosh t\_3}\right) - \tanh t\_3 \cdot t\_1\right|\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if (+.f64 (*.f64 (*.f64 ew (sin.f64 t)) (cos.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))) (*.f64 (*.f64 eh (cos.f64 t)) (sin.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t)))))) < 3.9999999999999998e60

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Taylor expanded in eh around 0

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    4. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|\left(-ew \cdot \color{blue}{\sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-sin.f6498.5

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    5. Applied rewrites98.5%

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    6. Taylor expanded in t around 0

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{\frac{-1}{3} \cdot \frac{eh \cdot {t}^{2}}{ew} + \frac{eh}{ew}}{t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]
    7. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\frac{-1}{3} \cdot \frac{eh \cdot {t}^{2}}{ew} + \frac{eh}{ew}}{\color{blue}{t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-fma.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      3. lower-/.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      4. lower-*.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      5. lower-pow.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      6. lower-/.f6490.7

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    8. Applied rewrites90.7%

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]

    if 3.9999999999999998e60 < (+.f64 (*.f64 (*.f64 ew (sin.f64 t)) (cos.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))) (*.f64 (*.f64 eh (cos.f64 t)) (sin.f64 (atan.f64 (/.f64 (/.f64 eh ew) (tan.f64 t))))))

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Taylor expanded in t around 0

      \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \color{blue}{\left(\frac{eh}{ew \cdot t}\right)}}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    4. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-*.f6499.1

        \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{ew \cdot \color{blue}{t}}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    5. Applied rewrites99.1%

      \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \color{blue}{\left(\frac{eh}{ew \cdot t}\right)}}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    6. Taylor expanded in t around 0

      \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)}\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{eh}{ew \cdot t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]
    7. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-*.f6489.7

        \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot \color{blue}{t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    8. Applied rewrites89.7%

      \[\leadsto \left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right)}\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{eh}{ew \cdot t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 6: 91.2% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \cos t \cdot eh\\ t_2 := -ew \cdot \sin t\\ \mathbf{if}\;ew \leq 2.5 \cdot 10^{-134}:\\ \;\;\;\;\left|t\_2 - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right) \cdot t\_1\right|\\ \mathbf{else}:\\ \;\;\;\;\left|t\_2 - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot t\_1\right|\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (* (cos t) eh)) (t_2 (- (* ew (sin t)))))
   (if (<= ew 2.5e-134)
     (fabs (- t_2 (* (tanh (asinh (/ eh (* ew t)))) t_1)))
     (fabs
      (-
       t_2
       (*
        (tanh
         (asinh
          (/ (fma -0.3333333333333333 (/ (* eh (pow t 2.0)) ew) (/ eh ew)) t)))
        t_1))))))
double code(double eh, double ew, double t) {
	double t_1 = cos(t) * eh;
	double t_2 = -(ew * sin(t));
	double tmp;
	if (ew <= 2.5e-134) {
		tmp = fabs((t_2 - (tanh(asinh((eh / (ew * t)))) * t_1)));
	} else {
		tmp = fabs((t_2 - (tanh(asinh((fma(-0.3333333333333333, ((eh * pow(t, 2.0)) / ew), (eh / ew)) / t))) * t_1)));
	}
	return tmp;
}
function code(eh, ew, t)
	t_1 = Float64(cos(t) * eh)
	t_2 = Float64(-Float64(ew * sin(t)))
	tmp = 0.0
	if (ew <= 2.5e-134)
		tmp = abs(Float64(t_2 - Float64(tanh(asinh(Float64(eh / Float64(ew * t)))) * t_1)));
	else
		tmp = abs(Float64(t_2 - Float64(tanh(asinh(Float64(fma(-0.3333333333333333, Float64(Float64(eh * (t ^ 2.0)) / ew), Float64(eh / ew)) / t))) * t_1)));
	end
	return tmp
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[(N[Cos[t], $MachinePrecision] * eh), $MachinePrecision]}, Block[{t$95$2 = (-N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision])}, If[LessEqual[ew, 2.5e-134], N[Abs[N[(t$95$2 - N[(N[Tanh[N[ArcSinh[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], N[Abs[N[(t$95$2 - N[(N[Tanh[N[ArcSinh[N[(N[(-0.3333333333333333 * N[(N[(eh * N[Power[t, 2.0], $MachinePrecision]), $MachinePrecision] / ew), $MachinePrecision] + N[(eh / ew), $MachinePrecision]), $MachinePrecision] / t), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] * t$95$1), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \cos t \cdot eh\\
t_2 := -ew \cdot \sin t\\
\mathbf{if}\;ew \leq 2.5 \cdot 10^{-134}:\\
\;\;\;\;\left|t\_2 - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right) \cdot t\_1\right|\\

\mathbf{else}:\\
\;\;\;\;\left|t\_2 - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot t\_1\right|\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if ew < 2.5000000000000002e-134

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Taylor expanded in eh around 0

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    4. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|\left(-ew \cdot \color{blue}{\sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-sin.f6498.5

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    5. Applied rewrites98.5%

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    6. Taylor expanded in t around 0

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    7. Step-by-step derivation
      1. lower-*.f6489.2

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot \color{blue}{t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    8. Applied rewrites89.2%

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]

    if 2.5000000000000002e-134 < ew

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Taylor expanded in eh around 0

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    4. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|\left(-ew \cdot \color{blue}{\sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-sin.f6498.5

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    5. Applied rewrites98.5%

      \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    6. Taylor expanded in t around 0

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{\frac{-1}{3} \cdot \frac{eh \cdot {t}^{2}}{ew} + \frac{eh}{ew}}{t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]
    7. Step-by-step derivation
      1. lower-/.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\frac{-1}{3} \cdot \frac{eh \cdot {t}^{2}}{ew} + \frac{eh}{ew}}{\color{blue}{t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      2. lower-fma.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      3. lower-/.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      4. lower-*.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      5. lower-pow.f64N/A

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(\frac{-1}{3}, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
      6. lower-/.f6490.7

        \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    8. Applied rewrites90.7%

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \color{blue}{\left(\frac{\mathsf{fma}\left(-0.3333333333333333, \frac{eh \cdot {t}^{2}}{ew}, \frac{eh}{ew}\right)}{t}\right)} \cdot \left(\cos t \cdot eh\right)\right| \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 7: 89.2% accurate, 2.4× speedup?

\[\begin{array}{l} \\ \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right) \cdot \left(\cos t \cdot eh\right)\right| \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (fabs
  (- (- (* ew (sin t))) (* (tanh (asinh (/ eh (* ew t)))) (* (cos t) eh)))))
double code(double eh, double ew, double t) {
	return fabs((-(ew * sin(t)) - (tanh(asinh((eh / (ew * t)))) * (cos(t) * eh))));
}
def code(eh, ew, t):
	return math.fabs((-(ew * math.sin(t)) - (math.tanh(math.asinh((eh / (ew * t)))) * (math.cos(t) * eh))))
function code(eh, ew, t)
	return abs(Float64(Float64(-Float64(ew * sin(t))) - Float64(tanh(asinh(Float64(eh / Float64(ew * t)))) * Float64(cos(t) * eh))))
end
function tmp = code(eh, ew, t)
	tmp = abs((-(ew * sin(t)) - (tanh(asinh((eh / (ew * t)))) * (cos(t) * eh))));
end
code[eh_, ew_, t_] := N[Abs[N[((-N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]) - N[(N[Tanh[N[ArcSinh[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] * N[(N[Cos[t], $MachinePrecision] * eh), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

\\
\left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot t}\right) \cdot \left(\cos t \cdot eh\right)\right|
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Applied rewrites99.8%

    \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
  3. Taylor expanded in eh around 0

    \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  4. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \left|\left(-ew \cdot \color{blue}{\sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
    2. lower-sin.f6498.5

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  5. Applied rewrites98.5%

    \[\leadsto \left|\left(-\color{blue}{ew \cdot \sin t}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  6. Taylor expanded in t around 0

    \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  7. Step-by-step derivation
    1. lower-*.f6489.2

      \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{ew \cdot \color{blue}{t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  8. Applied rewrites89.2%

    \[\leadsto \left|\left(-ew \cdot \sin t\right) - \tanh \sinh^{-1} \left(\frac{eh}{\color{blue}{ew \cdot t}}\right) \cdot \left(\cos t \cdot eh\right)\right| \]
  9. Add Preprocessing

Alternative 8: 49.5% accurate, 3.7× speedup?

\[\begin{array}{l} \\ \begin{array}{l} \mathbf{if}\;ew \leq 1.55 \cdot 10^{+96}:\\ \;\;\;\;\left|\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh\right|\\ \mathbf{else}:\\ \;\;\;\;\left|ew \cdot \sin t\right|\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (if (<= ew 1.55e+96)
   (fabs (* (tanh (asinh (/ eh (* (tan t) ew)))) eh))
   (fabs (* ew (sin t)))))
double code(double eh, double ew, double t) {
	double tmp;
	if (ew <= 1.55e+96) {
		tmp = fabs((tanh(asinh((eh / (tan(t) * ew)))) * eh));
	} else {
		tmp = fabs((ew * sin(t)));
	}
	return tmp;
}
def code(eh, ew, t):
	tmp = 0
	if ew <= 1.55e+96:
		tmp = math.fabs((math.tanh(math.asinh((eh / (math.tan(t) * ew)))) * eh))
	else:
		tmp = math.fabs((ew * math.sin(t)))
	return tmp
function code(eh, ew, t)
	tmp = 0.0
	if (ew <= 1.55e+96)
		tmp = abs(Float64(tanh(asinh(Float64(eh / Float64(tan(t) * ew)))) * eh));
	else
		tmp = abs(Float64(ew * sin(t)));
	end
	return tmp
end
function tmp_2 = code(eh, ew, t)
	tmp = 0.0;
	if (ew <= 1.55e+96)
		tmp = abs((tanh(asinh((eh / (tan(t) * ew)))) * eh));
	else
		tmp = abs((ew * sin(t)));
	end
	tmp_2 = tmp;
end
code[eh_, ew_, t_] := If[LessEqual[ew, 1.55e+96], N[Abs[N[(N[Tanh[N[ArcSinh[N[(eh / N[(N[Tan[t], $MachinePrecision] * ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision] * eh), $MachinePrecision]], $MachinePrecision], N[Abs[N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
\mathbf{if}\;ew \leq 1.55 \cdot 10^{+96}:\\
\;\;\;\;\left|\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh\right|\\

\mathbf{else}:\\
\;\;\;\;\left|ew \cdot \sin t\right|\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if ew < 1.5499999999999999e96

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Taylor expanded in t around 0

      \[\leadsto \left|\color{blue}{eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)}\right| \]
    3. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|eh \cdot \color{blue}{\sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)}\right| \]
      2. lower-sin.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      3. lower-atan.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      4. lower-/.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      5. lower-*.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      6. lower-cos.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      7. lower-*.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      8. lower-sin.f6441.8

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
    4. Applied rewrites41.8%

      \[\leadsto \left|\color{blue}{eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)}\right| \]
    5. Step-by-step derivation
      1. lift-*.f64N/A

        \[\leadsto \left|eh \cdot \color{blue}{\sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)}\right| \]
      2. lift-atan.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      3. lift-/.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      4. lift-*.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      5. lift-*.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh \cdot \cos t}{ew \cdot \sin t}\right)\right| \]
      6. times-fracN/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{\cos t}{\sin t}\right)\right| \]
      7. div-flip-revN/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{1}{\frac{\sin t}{\cos t}}\right)\right| \]
      8. lift-sin.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{1}{\frac{\sin t}{\cos t}}\right)\right| \]
      9. lift-cos.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{1}{\frac{\sin t}{\cos t}}\right)\right| \]
      10. tan-quotN/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{1}{\tan t}\right)\right| \]
      11. lift-tan.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew} \cdot \frac{1}{\tan t}\right)\right| \]
      12. mult-flipN/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      13. lift-tan.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      14. lower-sin.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      15. lift-tan.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      16. associate-/l/N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{ew \cdot \tan t}\right)\right| \]
      17. *-commutativeN/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right| \]
      18. lift-*.f64N/A

        \[\leadsto \left|eh \cdot \sin \tan^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)\right| \]
    6. Applied rewrites41.8%

      \[\leadsto \left|\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \color{blue}{eh}\right| \]

    if 1.5499999999999999e96 < ew

    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Step-by-step derivation
      1. lift-cos.f64N/A

        \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\cos t}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      2. sin-+PI/2-revN/A

        \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\sin \left(t + \frac{\mathsf{PI}\left(\right)}{2}\right)}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      3. sin-sumN/A

        \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right) + \cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      4. flip3-+N/A

        \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3} + {\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3}}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) + \left(\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) - \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
      5. lower-/.f64N/A

        \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3} + {\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3}}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) + \left(\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) - \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    3. Applied rewrites99.7%

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot 0\right)}^{3} + {\left(\cos t \cdot 1\right)}^{3}}{\mathsf{fma}\left(\sin t \cdot 0, \sin t \cdot 0, \left(\cos t \cdot 1\right) \cdot \left(\cos t \cdot 1\right) - \left(\sin t \cdot 0\right) \cdot \left(\cos t \cdot 1\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    4. Applied rewrites99.7%

      \[\leadsto \left|\color{blue}{\mathsf{fma}\left(\frac{eh \cdot \left({\cos t}^{3} + 0\right)}{\mathsf{fma}\left(\cos t, \cos t - 0, 0\right)}, \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right), \frac{1}{\sqrt{1 + {\left(\frac{eh}{\tan t \cdot ew}\right)}^{2}}} \cdot \left(\sin t \cdot ew\right)\right)}\right| \]
    5. Taylor expanded in eh around 0

      \[\leadsto \left|\color{blue}{ew \cdot \sin t}\right| \]
    6. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|ew \cdot \color{blue}{\sin t}\right| \]
      2. lower-sin.f6441.2

        \[\leadsto \left|ew \cdot \sin t\right| \]
    7. Applied rewrites41.2%

      \[\leadsto \left|\color{blue}{ew \cdot \sin t}\right| \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 9: 41.2% accurate, 6.7× speedup?

\[\begin{array}{l} \\ \left|ew \cdot \sin t\right| \end{array} \]
(FPCore (eh ew t) :precision binary64 (fabs (* ew (sin t))))
double code(double eh, double ew, double t) {
	return fabs((ew * sin(t)));
}
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(eh, ew, t)
use fmin_fmax_functions
    real(8), intent (in) :: eh
    real(8), intent (in) :: ew
    real(8), intent (in) :: t
    code = abs((ew * sin(t)))
end function
public static double code(double eh, double ew, double t) {
	return Math.abs((ew * Math.sin(t)));
}
def code(eh, ew, t):
	return math.fabs((ew * math.sin(t)))
function code(eh, ew, t)
	return abs(Float64(ew * sin(t)))
end
function tmp = code(eh, ew, t)
	tmp = abs((ew * sin(t)));
end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

\\
\left|ew \cdot \sin t\right|
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Step-by-step derivation
    1. lift-cos.f64N/A

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\cos t}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. sin-+PI/2-revN/A

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\sin \left(t + \frac{\mathsf{PI}\left(\right)}{2}\right)}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    3. sin-sumN/A

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right) + \cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    4. flip3-+N/A

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3} + {\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3}}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) + \left(\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) - \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    5. lower-/.f64N/A

      \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3} + {\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)}^{3}}{\left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) + \left(\left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) - \left(\sin t \cdot \cos \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right) \cdot \left(\cos t \cdot \sin \left(\frac{\mathsf{PI}\left(\right)}{2}\right)\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  3. Applied rewrites99.7%

    \[\leadsto \left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \color{blue}{\frac{{\left(\sin t \cdot 0\right)}^{3} + {\left(\cos t \cdot 1\right)}^{3}}{\mathsf{fma}\left(\sin t \cdot 0, \sin t \cdot 0, \left(\cos t \cdot 1\right) \cdot \left(\cos t \cdot 1\right) - \left(\sin t \cdot 0\right) \cdot \left(\cos t \cdot 1\right)\right)}}\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  4. Applied rewrites99.7%

    \[\leadsto \left|\color{blue}{\mathsf{fma}\left(\frac{eh \cdot \left({\cos t}^{3} + 0\right)}{\mathsf{fma}\left(\cos t, \cos t - 0, 0\right)}, \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right), \frac{1}{\sqrt{1 + {\left(\frac{eh}{\tan t \cdot ew}\right)}^{2}}} \cdot \left(\sin t \cdot ew\right)\right)}\right| \]
  5. Taylor expanded in eh around 0

    \[\leadsto \left|\color{blue}{ew \cdot \sin t}\right| \]
  6. Step-by-step derivation
    1. lower-*.f64N/A

      \[\leadsto \left|ew \cdot \color{blue}{\sin t}\right| \]
    2. lower-sin.f6441.2

      \[\leadsto \left|ew \cdot \sin t\right| \]
  7. Applied rewrites41.2%

    \[\leadsto \left|\color{blue}{ew \cdot \sin t}\right| \]
  8. Add Preprocessing

Alternative 10: 21.2% accurate, 6.9× speedup?

\[\begin{array}{l} \\ ew \cdot \sin t \end{array} \]
(FPCore (eh ew t) :precision binary64 (* ew (sin t)))
double code(double eh, double ew, double t) {
	return ew * sin(t);
}
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(eh, ew, t)
use fmin_fmax_functions
    real(8), intent (in) :: eh
    real(8), intent (in) :: ew
    real(8), intent (in) :: t
    code = ew * sin(t)
end function
public static double code(double eh, double ew, double t) {
	return ew * Math.sin(t);
}
def code(eh, ew, t):
	return ew * math.sin(t)
function code(eh, ew, t)
	return Float64(ew * sin(t))
end
function tmp = code(eh, ew, t)
	tmp = ew * sin(t);
end
code[eh_, ew_, t_] := N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}

\\
ew \cdot \sin t
\end{array}
Derivation
  1. Initial program 99.8%

    \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
  2. Applied rewrites37.7%

    \[\leadsto \color{blue}{\left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot \left(\sin t \cdot ew\right)} \]
  3. Step-by-step derivation
    1. lift-*.f64N/A

      \[\leadsto \color{blue}{\left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot \left(\sin t \cdot ew\right)} \]
    2. lift-*.f64N/A

      \[\leadsto \left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot \color{blue}{\left(\sin t \cdot ew\right)} \]
    3. *-commutativeN/A

      \[\leadsto \left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot \color{blue}{\left(ew \cdot \sin t\right)} \]
    4. associate-*r*N/A

      \[\leadsto \color{blue}{\left(\left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot ew\right) \cdot \sin t} \]
    5. lower-*.f64N/A

      \[\leadsto \color{blue}{\left(\left(\frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)} + \frac{\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot eh}{ew} \cdot \frac{1}{\tan t}\right) \cdot ew\right) \cdot \sin t} \]
  4. Applied rewrites36.0%

    \[\leadsto \color{blue}{\left(\mathsf{fma}\left(\tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right), \frac{eh}{\tan t \cdot ew}, \frac{1}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) \cdot ew\right) \cdot \sin t} \]
  5. Taylor expanded in eh around 0

    \[\leadsto \color{blue}{ew} \cdot \sin t \]
  6. Step-by-step derivation
    1. Applied rewrites21.2%

      \[\leadsto \color{blue}{ew} \cdot \sin t \]
    2. Add Preprocessing

    Alternative 11: 18.9% accurate, 40.2× speedup?

    \[\begin{array}{l} \\ \left|\left(-ew\right) \cdot t\right| \end{array} \]
    (FPCore (eh ew t) :precision binary64 (fabs (* (- ew) t)))
    double code(double eh, double ew, double t) {
    	return fabs((-ew * t));
    }
    
    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(eh, ew, t)
    use fmin_fmax_functions
        real(8), intent (in) :: eh
        real(8), intent (in) :: ew
        real(8), intent (in) :: t
        code = abs((-ew * t))
    end function
    
    public static double code(double eh, double ew, double t) {
    	return Math.abs((-ew * t));
    }
    
    def code(eh, ew, t):
    	return math.fabs((-ew * t))
    
    function code(eh, ew, t)
    	return abs(Float64(Float64(-ew) * t))
    end
    
    function tmp = code(eh, ew, t)
    	tmp = abs((-ew * t));
    end
    
    code[eh_, ew_, t_] := N[Abs[N[((-ew) * t), $MachinePrecision]], $MachinePrecision]
    
    \begin{array}{l}
    
    \\
    \left|\left(-ew\right) \cdot t\right|
    \end{array}
    
    Derivation
    1. Initial program 99.8%

      \[\left|\left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\right| \]
    2. Applied rewrites99.8%

      \[\leadsto \color{blue}{\left|\left(-\frac{\sin t \cdot ew}{\cosh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right)}\right) - \tanh \sinh^{-1} \left(\frac{eh}{\tan t \cdot ew}\right) \cdot \left(\cos t \cdot eh\right)\right|} \]
    3. Taylor expanded in eh around 0

      \[\leadsto \left|\color{blue}{-1 \cdot \left(ew \cdot \sin t\right)}\right| \]
    4. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|-1 \cdot \color{blue}{\left(ew \cdot \sin t\right)}\right| \]
      2. lower-*.f64N/A

        \[\leadsto \left|-1 \cdot \left(ew \cdot \color{blue}{\sin t}\right)\right| \]
      3. lower-sin.f6441.2

        \[\leadsto \left|-1 \cdot \left(ew \cdot \sin t\right)\right| \]
    5. Applied rewrites41.2%

      \[\leadsto \left|\color{blue}{-1 \cdot \left(ew \cdot \sin t\right)}\right| \]
    6. Taylor expanded in t around 0

      \[\leadsto \left|-1 \cdot \left(ew \cdot t\right)\right| \]
    7. Step-by-step derivation
      1. Applied rewrites18.9%

        \[\leadsto \left|-1 \cdot \left(ew \cdot t\right)\right| \]
      2. Step-by-step derivation
        1. lift-*.f64N/A

          \[\leadsto \left|-1 \cdot \color{blue}{\left(ew \cdot t\right)}\right| \]
        2. lift-*.f64N/A

          \[\leadsto \left|-1 \cdot \left(ew \cdot \color{blue}{t}\right)\right| \]
        3. associate-*r*N/A

          \[\leadsto \left|\left(-1 \cdot ew\right) \cdot \color{blue}{t}\right| \]
        4. lower-*.f64N/A

          \[\leadsto \left|\left(-1 \cdot ew\right) \cdot \color{blue}{t}\right| \]
        5. mul-1-negN/A

          \[\leadsto \left|\left(\mathsf{neg}\left(ew\right)\right) \cdot t\right| \]
        6. lower-neg.f6418.9

          \[\leadsto \left|\left(-ew\right) \cdot t\right| \]
      3. Applied rewrites18.9%

        \[\leadsto \left|\left(-ew\right) \cdot \color{blue}{t}\right| \]
      4. Add Preprocessing

      Reproduce

      ?
      herbie shell --seed 2025149 
      (FPCore (eh ew t)
        :name "Example from Robby"
        :precision binary64
        (fabs (+ (* (* ew (sin t)) (cos (atan (/ (/ eh ew) (tan t))))) (* (* eh (cos t)) (sin (atan (/ (/ eh ew) (tan t))))))))