Example 2 from Robby

Percentage Accurate: 99.8% → 99.8%
Time: 11.3s
Alternatives: 11
Speedup: N/A×

Specification

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

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

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

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

Alternative 1: 99.8% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(-eh\right) \cdot \frac{\tan t}{ew}\\ \left|ew \cdot \left(\cos t \cdot \frac{1}{\sqrt{1 + {t\_1}^{2}}}\right) + \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} t\_1\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (* (- eh) (/ (tan t) ew))))
   (fabs
    (+
     (* ew (* (cos t) (/ 1.0 (sqrt (+ 1.0 (pow t_1 2.0))))))
     (* (- (* (sin t) eh)) (tanh (asinh t_1)))))))
double code(double eh, double ew, double t) {
	double t_1 = -eh * (tan(t) / ew);
	return fabs(((ew * (cos(t) * (1.0 / sqrt((1.0 + pow(t_1, 2.0)))))) + (-(sin(t) * eh) * tanh(asinh(t_1)))));
}
def code(eh, ew, t):
	t_1 = -eh * (math.tan(t) / ew)
	return math.fabs(((ew * (math.cos(t) * (1.0 / math.sqrt((1.0 + math.pow(t_1, 2.0)))))) + (-(math.sin(t) * eh) * math.tanh(math.asinh(t_1)))))
function code(eh, ew, t)
	t_1 = Float64(Float64(-eh) * Float64(tan(t) / ew))
	return abs(Float64(Float64(ew * Float64(cos(t) * Float64(1.0 / sqrt(Float64(1.0 + (t_1 ^ 2.0)))))) + Float64(Float64(-Float64(sin(t) * eh)) * tanh(asinh(t_1)))))
end
function tmp = code(eh, ew, t)
	t_1 = -eh * (tan(t) / ew);
	tmp = abs(((ew * (cos(t) * (1.0 / sqrt((1.0 + (t_1 ^ 2.0)))))) + (-(sin(t) * eh) * tanh(asinh(t_1)))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[((-eh) * N[(N[Tan[t], $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]}, N[Abs[N[(N[(ew * N[(N[Cos[t], $MachinePrecision] * N[(1.0 / N[Sqrt[N[(1.0 + N[Power[t$95$1, 2.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[((-N[(N[Sin[t], $MachinePrecision] * eh), $MachinePrecision]) * N[Tanh[N[ArcSinh[t$95$1], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(-eh\right) \cdot \frac{\tan t}{ew}\\
\left|ew \cdot \left(\cos t \cdot \frac{1}{\sqrt{1 + {t\_1}^{2}}}\right) + \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} t\_1\right|
\end{array}
\end{array}
Derivation
  1. Initial program 99.8%

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

    \[\leadsto \left|\color{blue}{\mathsf{fma}\left(ew, \cos t \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)}\right| \]
  3. Applied rewrites99.8%

    \[\leadsto \left|\color{blue}{ew \cdot \left(\cos t \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right) + \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}\right| \]
  4. Add Preprocessing

Alternative 2: 99.8% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left(-eh\right) \cdot \frac{\tan t}{ew}\\ \left|\left(\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} t\_1 - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {t\_1}^{2}}}\right| \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (* (- eh) (/ (tan t) ew))))
   (fabs
    (-
     (* (* (sin t) eh) (tanh (asinh t_1)))
     (* (* (cos t) ew) (/ 1.0 (sqrt (+ 1.0 (pow t_1 2.0)))))))))
double code(double eh, double ew, double t) {
	double t_1 = -eh * (tan(t) / ew);
	return fabs((((sin(t) * eh) * tanh(asinh(t_1))) - ((cos(t) * ew) * (1.0 / sqrt((1.0 + pow(t_1, 2.0)))))));
}
def code(eh, ew, t):
	t_1 = -eh * (math.tan(t) / ew)
	return math.fabs((((math.sin(t) * eh) * math.tanh(math.asinh(t_1))) - ((math.cos(t) * ew) * (1.0 / math.sqrt((1.0 + math.pow(t_1, 2.0)))))))
function code(eh, ew, t)
	t_1 = Float64(Float64(-eh) * Float64(tan(t) / ew))
	return abs(Float64(Float64(Float64(sin(t) * eh) * tanh(asinh(t_1))) - Float64(Float64(cos(t) * ew) * Float64(1.0 / sqrt(Float64(1.0 + (t_1 ^ 2.0)))))))
end
function tmp = code(eh, ew, t)
	t_1 = -eh * (tan(t) / ew);
	tmp = abs((((sin(t) * eh) * tanh(asinh(t_1))) - ((cos(t) * ew) * (1.0 / sqrt((1.0 + (t_1 ^ 2.0)))))));
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[((-eh) * N[(N[Tan[t], $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]}, N[Abs[N[(N[(N[(N[Sin[t], $MachinePrecision] * eh), $MachinePrecision] * N[Tanh[N[ArcSinh[t$95$1], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(N[(N[Cos[t], $MachinePrecision] * ew), $MachinePrecision] * N[(1.0 / N[Sqrt[N[(1.0 + N[Power[t$95$1, 2.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left(-eh\right) \cdot \frac{\tan t}{ew}\\
\left|\left(\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} t\_1 - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {t\_1}^{2}}}\right|
\end{array}
\end{array}
Derivation
  1. Initial program 99.8%

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

    \[\leadsto \color{blue}{\left|\left(\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right) - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right|} \]
  3. Add Preprocessing

Alternative 3: 99.2% accurate, 1.2× speedup?

\[\begin{array}{l} \\ \left|\left(\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \tan t\right)\right) - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right| \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (fabs
  (-
   (* (* (sin t) eh) (tanh (* -1.0 (* (/ eh ew) (tan t)))))
   (*
    (* (cos t) ew)
    (/ 1.0 (sqrt (+ 1.0 (pow (* (- eh) (/ (tan t) ew)) 2.0))))))))
double code(double eh, double ew, double t) {
	return fabs((((sin(t) * eh) * tanh((-1.0 * ((eh / ew) * tan(t))))) - ((cos(t) * ew) * (1.0 / sqrt((1.0 + pow((-eh * (tan(t) / ew)), 2.0)))))));
}
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((((sin(t) * eh) * tanh(((-1.0d0) * ((eh / ew) * tan(t))))) - ((cos(t) * ew) * (1.0d0 / sqrt((1.0d0 + ((-eh * (tan(t) / ew)) ** 2.0d0)))))))
end function
public static double code(double eh, double ew, double t) {
	return Math.abs((((Math.sin(t) * eh) * Math.tanh((-1.0 * ((eh / ew) * Math.tan(t))))) - ((Math.cos(t) * ew) * (1.0 / Math.sqrt((1.0 + Math.pow((-eh * (Math.tan(t) / ew)), 2.0)))))));
}
def code(eh, ew, t):
	return math.fabs((((math.sin(t) * eh) * math.tanh((-1.0 * ((eh / ew) * math.tan(t))))) - ((math.cos(t) * ew) * (1.0 / math.sqrt((1.0 + math.pow((-eh * (math.tan(t) / ew)), 2.0)))))))
function code(eh, ew, t)
	return abs(Float64(Float64(Float64(sin(t) * eh) * tanh(Float64(-1.0 * Float64(Float64(eh / ew) * tan(t))))) - Float64(Float64(cos(t) * ew) * Float64(1.0 / sqrt(Float64(1.0 + (Float64(Float64(-eh) * Float64(tan(t) / ew)) ^ 2.0)))))))
end
function tmp = code(eh, ew, t)
	tmp = abs((((sin(t) * eh) * tanh((-1.0 * ((eh / ew) * tan(t))))) - ((cos(t) * ew) * (1.0 / sqrt((1.0 + ((-eh * (tan(t) / ew)) ^ 2.0)))))));
end
code[eh_, ew_, t_] := N[Abs[N[(N[(N[(N[Sin[t], $MachinePrecision] * eh), $MachinePrecision] * N[Tanh[N[(-1.0 * N[(N[(eh / ew), $MachinePrecision] * N[Tan[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision] - N[(N[(N[Cos[t], $MachinePrecision] * ew), $MachinePrecision] * N[(1.0 / N[Sqrt[N[(1.0 + N[Power[N[((-eh) * N[(N[Tan[t], $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

\\
\left|\left(\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \tan t\right)\right) - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right|
\end{array}
Derivation
  1. Initial program 99.8%

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

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

    \[\leadsto \left|\left(\sin t \cdot eh\right) \cdot \tanh \color{blue}{\left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)} - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right| \]
  4. Step-by-step derivation
    1. times-fracN/A

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

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

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

      \[\leadsto \left|\left(\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \tan t\right)\right) - \left(\cos t \cdot ew\right) \cdot \frac{1}{\sqrt{1 + {\left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)}^{2}}}\right| \]
    5. lift-*.f64N/A

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

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

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

Alternative 4: 98.6% accurate, 1.8× speedup?

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

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

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

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

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

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

      \[\leadsto \left|\left(\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right) - ew \cdot \color{blue}{\cos t}\right| \]
  5. Applied rewrites98.6%

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

Alternative 5: 98.6% accurate, 1.9× speedup?

\[\begin{array}{l} \\ \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \tan t\right)\right)\right)\right| \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (fabs
  (fma
   ew
   (cos t)
   (* (- (* (sin t) eh)) (tanh (* -1.0 (* (/ eh ew) (tan t))))))))
double code(double eh, double ew, double t) {
	return fabs(fma(ew, cos(t), (-(sin(t) * eh) * tanh((-1.0 * ((eh / ew) * tan(t)))))));
}
function code(eh, ew, t)
	return abs(fma(ew, cos(t), Float64(Float64(-Float64(sin(t) * eh)) * tanh(Float64(-1.0 * Float64(Float64(eh / ew) * tan(t)))))))
end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[Cos[t], $MachinePrecision] + N[((-N[(N[Sin[t], $MachinePrecision] * eh), $MachinePrecision]) * N[Tanh[N[(-1.0 * N[(N[(eh / ew), $MachinePrecision] * N[Tan[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

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

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

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

    \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos t}, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
  4. Step-by-step derivation
    1. lift-cos.f6498.6

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
  5. Applied rewrites98.6%

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

    \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \color{blue}{\left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)}\right)\right| \]
  7. Step-by-step derivation
    1. times-fracN/A

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

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \frac{\color{blue}{\sin t}}{\cos t}\right)\right)\right)\right| \]
    3. tan-quotN/A

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

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

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \left(\frac{eh}{ew} \cdot \color{blue}{\tan t}\right)\right)\right)\right| \]
    6. lift-*.f6498.6

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \color{blue}{\left(\frac{eh}{ew} \cdot \tan t\right)}\right)\right)\right| \]
  8. Applied rewrites98.6%

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

Alternative 6: 98.4% accurate, 2.6× speedup?

\[\begin{array}{l} \\ \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right)\right)\right| \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (fabs
  (fma ew (cos t) (* (- (* (sin t) eh)) (tanh (* -1.0 (/ (* eh t) ew)))))))
double code(double eh, double ew, double t) {
	return fabs(fma(ew, cos(t), (-(sin(t) * eh) * tanh((-1.0 * ((eh * t) / ew))))));
}
function code(eh, ew, t)
	return abs(fma(ew, cos(t), Float64(Float64(-Float64(sin(t) * eh)) * tanh(Float64(-1.0 * Float64(Float64(eh * t) / ew))))))
end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[Cos[t], $MachinePrecision] + N[((-N[(N[Sin[t], $MachinePrecision] * eh), $MachinePrecision]) * N[Tanh[N[(-1.0 * N[(N[(eh * t), $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}

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

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

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

    \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos t}, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
  4. Step-by-step derivation
    1. lift-cos.f6498.6

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
  5. Applied rewrites98.6%

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

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

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

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{\color{blue}{ew}}\right)\right)\right| \]
    3. lower-*.f6498.4

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right)\right)\right| \]
  8. Applied rewrites98.4%

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

Alternative 7: 74.7% accurate, 3.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left|ew \cdot \cos t\right|\\ \mathbf{if}\;t \leq -1.5 \cdot 10^{+88}:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 5.5 \cdot 10^{+17}:\\ \;\;\;\;\left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right)\right)\right|\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (fabs (* ew (cos t)))))
   (if (<= t -1.5e+88)
     t_1
     (if (<= t 5.5e+17)
       (fabs
        (fma
         ew
         (cos t)
         (*
          (* t (- (* 0.16666666666666666 (* eh (* t t))) eh))
          (tanh (* -1.0 (/ (* eh t) ew))))))
       t_1))))
double code(double eh, double ew, double t) {
	double t_1 = fabs((ew * cos(t)));
	double tmp;
	if (t <= -1.5e+88) {
		tmp = t_1;
	} else if (t <= 5.5e+17) {
		tmp = fabs(fma(ew, cos(t), ((t * ((0.16666666666666666 * (eh * (t * t))) - eh)) * tanh((-1.0 * ((eh * t) / ew))))));
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(eh, ew, t)
	t_1 = abs(Float64(ew * cos(t)))
	tmp = 0.0
	if (t <= -1.5e+88)
		tmp = t_1;
	elseif (t <= 5.5e+17)
		tmp = abs(fma(ew, cos(t), Float64(Float64(t * Float64(Float64(0.16666666666666666 * Float64(eh * Float64(t * t))) - eh)) * tanh(Float64(-1.0 * Float64(Float64(eh * t) / ew))))));
	else
		tmp = t_1;
	end
	return tmp
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[Abs[N[(ew * N[Cos[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[t, -1.5e+88], t$95$1, If[LessEqual[t, 5.5e+17], N[Abs[N[(ew * N[Cos[t], $MachinePrecision] + N[(N[(t * N[(N[(0.16666666666666666 * N[(eh * N[(t * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] - eh), $MachinePrecision]), $MachinePrecision] * N[Tanh[N[(-1.0 * N[(N[(eh * t), $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left|ew \cdot \cos t\right|\\
\mathbf{if}\;t \leq -1.5 \cdot 10^{+88}:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 5.5 \cdot 10^{+17}:\\
\;\;\;\;\left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right)\right)\right|\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -1.50000000000000003e88 or 5.5e17 < t

    1. Initial program 99.6%

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

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

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

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

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

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

        \[\leadsto \left|ew \cdot \color{blue}{\left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right)} - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
      7. lift-cos.f6499.6

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

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

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

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

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

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

        \[\leadsto \left|ew \cdot \left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \color{blue}{\tan t}}{ew}\right)\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
      14. cos-atanN/A

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

        \[\leadsto \left|ew \cdot \left(\cos t \cdot \color{blue}{\frac{1}{\sqrt{1 + \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew} \cdot \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew}}}}\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
    3. Applied rewrites99.6%

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

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

        \[\leadsto \left|ew \cdot \color{blue}{\cos t}\right| \]
      2. lift-cos.f6451.5

        \[\leadsto \left|ew \cdot \cos t\right| \]
    6. Applied rewrites51.5%

      \[\leadsto \left|\color{blue}{ew \cdot \cos t}\right| \]

    if -1.50000000000000003e88 < t < 5.5e17

    1. Initial program 99.9%

      \[\left|\left(ew \cdot \cos t\right) \cdot \cos \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
    2. Applied rewrites99.9%

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

      \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos t}, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
    4. Step-by-step derivation
      1. lift-cos.f6498.8

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(-\sin t \cdot eh\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
    5. Applied rewrites98.8%

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

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \color{blue}{\left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot {t}^{2}\right) - eh\right)\right)} \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
    7. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \color{blue}{\left(\frac{1}{6} \cdot \left(eh \cdot {t}^{2}\right) - eh\right)}\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
      2. lower--.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot {t}^{2}\right) - \color{blue}{eh}\right)\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
      3. lower-*.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot {t}^{2}\right) - eh\right)\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
      4. lower-*.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot {t}^{2}\right) - eh\right)\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
      5. unpow2N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
      6. lower-*.f6490.4

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
    8. Applied rewrites90.4%

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \color{blue}{\left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right)} \cdot \tanh \sinh^{-1} \left(\left(-eh\right) \cdot \frac{\tan t}{ew}\right)\right)\right| \]
    9. Taylor expanded in t around 0

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \color{blue}{\left(-1 \cdot \frac{eh \cdot t}{ew}\right)}\right)\right| \]
    10. Step-by-step derivation
      1. lower-*.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \left(-1 \cdot \color{blue}{\frac{eh \cdot t}{ew}}\right)\right)\right| \]
      2. lower-/.f64N/A

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(\frac{1}{6} \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{\color{blue}{ew}}\right)\right)\right| \]
      3. lower-*.f6490.1

        \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right)\right)\right| \]
    11. Applied rewrites90.1%

      \[\leadsto \left|\mathsf{fma}\left(ew, \cos t, \left(t \cdot \left(0.16666666666666666 \cdot \left(eh \cdot \left(t \cdot t\right)\right) - eh\right)\right) \cdot \tanh \color{blue}{\left(-1 \cdot \frac{eh \cdot t}{ew}\right)}\right)\right| \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 8: 74.7% accurate, 5.4× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_1 := \left|ew \cdot \cos t\right|\\ \mathbf{if}\;t \leq -0.00028:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 5.3 \cdot 10^{-11}:\\ \;\;\;\;\left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot t\right) \cdot t\right)\right)\right|\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
(FPCore (eh ew t)
 :precision binary64
 (let* ((t_1 (fabs (* ew (cos t)))))
   (if (<= t -0.00028)
     t_1
     (if (<= t 5.3e-11)
       (fabs (fma ew 1.0 (* (- eh) (* (tanh (asinh (- (* (/ eh ew) t)))) t))))
       t_1))))
double code(double eh, double ew, double t) {
	double t_1 = fabs((ew * cos(t)));
	double tmp;
	if (t <= -0.00028) {
		tmp = t_1;
	} else if (t <= 5.3e-11) {
		tmp = fabs(fma(ew, 1.0, (-eh * (tanh(asinh(-((eh / ew) * t))) * t))));
	} else {
		tmp = t_1;
	}
	return tmp;
}
function code(eh, ew, t)
	t_1 = abs(Float64(ew * cos(t)))
	tmp = 0.0
	if (t <= -0.00028)
		tmp = t_1;
	elseif (t <= 5.3e-11)
		tmp = abs(fma(ew, 1.0, Float64(Float64(-eh) * Float64(tanh(asinh(Float64(-Float64(Float64(eh / ew) * t)))) * t))));
	else
		tmp = t_1;
	end
	return tmp
end
code[eh_, ew_, t_] := Block[{t$95$1 = N[Abs[N[(ew * N[Cos[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[t, -0.00028], t$95$1, If[LessEqual[t, 5.3e-11], N[Abs[N[(ew * 1.0 + N[((-eh) * N[(N[Tanh[N[ArcSinh[(-N[(N[(eh / ew), $MachinePrecision] * t), $MachinePrecision])], $MachinePrecision]], $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], t$95$1]]]
\begin{array}{l}

\\
\begin{array}{l}
t_1 := \left|ew \cdot \cos t\right|\\
\mathbf{if}\;t \leq -0.00028:\\
\;\;\;\;t\_1\\

\mathbf{elif}\;t \leq 5.3 \cdot 10^{-11}:\\
\;\;\;\;\left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot t\right) \cdot t\right)\right)\right|\\

\mathbf{else}:\\
\;\;\;\;t\_1\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if t < -2.7999999999999998e-4 or 5.2999999999999998e-11 < t

    1. Initial program 99.6%

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

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

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

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

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

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

        \[\leadsto \left|ew \cdot \color{blue}{\left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right)} - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
      7. lift-cos.f6499.6

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

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

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

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

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

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

        \[\leadsto \left|ew \cdot \left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \color{blue}{\tan t}}{ew}\right)\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
      14. cos-atanN/A

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

        \[\leadsto \left|ew \cdot \left(\cos t \cdot \color{blue}{\frac{1}{\sqrt{1 + \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew} \cdot \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew}}}}\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
    3. Applied rewrites99.6%

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

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

        \[\leadsto \left|ew \cdot \color{blue}{\cos t}\right| \]
      2. lift-cos.f6451.1

        \[\leadsto \left|ew \cdot \cos t\right| \]
    6. Applied rewrites51.1%

      \[\leadsto \left|\color{blue}{ew \cdot \cos t}\right| \]

    if -2.7999999999999998e-4 < t < 5.2999999999999998e-11

    1. Initial program 100.0%

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

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

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

        \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)}, -1 \cdot \left(eh \cdot \left(t \cdot \sin \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)\right)\right)\right)\right| \]
    4. Applied rewrites99.9%

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

      \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot \tan t\right) \cdot t\right)\right)\right| \]
    6. Step-by-step derivation
      1. Applied rewrites98.8%

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

        \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot t\right) \cdot t\right)\right)\right| \]
      3. Step-by-step derivation
        1. Applied rewrites98.8%

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

      Alternative 9: 74.5% accurate, 5.5× speedup?

      \[\begin{array}{l} \\ \begin{array}{l} t_1 := \left|ew \cdot \cos t\right|\\ \mathbf{if}\;t \leq -0.00028:\\ \;\;\;\;t\_1\\ \mathbf{elif}\;t \leq 5.3 \cdot 10^{-11}:\\ \;\;\;\;\left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right|\\ \mathbf{else}:\\ \;\;\;\;t\_1\\ \end{array} \end{array} \]
      (FPCore (eh ew t)
       :precision binary64
       (let* ((t_1 (fabs (* ew (cos t)))))
         (if (<= t -0.00028)
           t_1
           (if (<= t 5.3e-11)
             (fabs (fma ew 1.0 (* (- eh) (* (tanh (* -1.0 (/ (* eh t) ew))) t))))
             t_1))))
      double code(double eh, double ew, double t) {
      	double t_1 = fabs((ew * cos(t)));
      	double tmp;
      	if (t <= -0.00028) {
      		tmp = t_1;
      	} else if (t <= 5.3e-11) {
      		tmp = fabs(fma(ew, 1.0, (-eh * (tanh((-1.0 * ((eh * t) / ew))) * t))));
      	} else {
      		tmp = t_1;
      	}
      	return tmp;
      }
      
      function code(eh, ew, t)
      	t_1 = abs(Float64(ew * cos(t)))
      	tmp = 0.0
      	if (t <= -0.00028)
      		tmp = t_1;
      	elseif (t <= 5.3e-11)
      		tmp = abs(fma(ew, 1.0, Float64(Float64(-eh) * Float64(tanh(Float64(-1.0 * Float64(Float64(eh * t) / ew))) * t))));
      	else
      		tmp = t_1;
      	end
      	return tmp
      end
      
      code[eh_, ew_, t_] := Block[{t$95$1 = N[Abs[N[(ew * N[Cos[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, If[LessEqual[t, -0.00028], t$95$1, If[LessEqual[t, 5.3e-11], N[Abs[N[(ew * 1.0 + N[((-eh) * N[(N[Tanh[N[(-1.0 * N[(N[(eh * t), $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision], t$95$1]]]
      
      \begin{array}{l}
      
      \\
      \begin{array}{l}
      t_1 := \left|ew \cdot \cos t\right|\\
      \mathbf{if}\;t \leq -0.00028:\\
      \;\;\;\;t\_1\\
      
      \mathbf{elif}\;t \leq 5.3 \cdot 10^{-11}:\\
      \;\;\;\;\left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right|\\
      
      \mathbf{else}:\\
      \;\;\;\;t\_1\\
      
      
      \end{array}
      \end{array}
      
      Derivation
      1. Split input into 2 regimes
      2. if t < -2.7999999999999998e-4 or 5.2999999999999998e-11 < t

        1. Initial program 99.6%

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

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

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

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

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

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

            \[\leadsto \left|ew \cdot \color{blue}{\left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right)} - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
          7. lift-cos.f6499.6

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

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

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

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

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

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

            \[\leadsto \left|ew \cdot \left(\cos t \cdot \cos \tan^{-1} \left(\frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \color{blue}{\tan t}}{ew}\right)\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
          14. cos-atanN/A

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

            \[\leadsto \left|ew \cdot \left(\cos t \cdot \color{blue}{\frac{1}{\sqrt{1 + \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew} \cdot \frac{\left(\mathsf{neg}\left(eh\right)\right) \cdot \tan t}{ew}}}}\right) - \left(eh \cdot \sin t\right) \cdot \sin \tan^{-1} \left(\frac{\left(-eh\right) \cdot \tan t}{ew}\right)\right| \]
        3. Applied rewrites99.6%

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

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

            \[\leadsto \left|ew \cdot \color{blue}{\cos t}\right| \]
          2. lift-cos.f6451.1

            \[\leadsto \left|ew \cdot \cos t\right| \]
        6. Applied rewrites51.1%

          \[\leadsto \left|\color{blue}{ew \cdot \cos t}\right| \]

        if -2.7999999999999998e-4 < t < 5.2999999999999998e-11

        1. Initial program 100.0%

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

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

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

            \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)}, -1 \cdot \left(eh \cdot \left(t \cdot \sin \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)\right)\right)\right)\right| \]
        4. Applied rewrites99.9%

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

          \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot \tan t\right) \cdot t\right)\right)\right| \]
        6. Step-by-step derivation
          1. Applied rewrites98.8%

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

            \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
          3. Step-by-step derivation
            1. lower-*.f64N/A

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

              \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
            3. lower-*.f6498.8

              \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
          4. Applied rewrites98.8%

            \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
        7. Recombined 2 regimes into one program.
        8. Add Preprocessing

        Alternative 10: 54.8% accurate, 7.9× speedup?

        \[\begin{array}{l} \\ \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \end{array} \]
        (FPCore (eh ew t)
         :precision binary64
         (fabs (fma ew 1.0 (* (- eh) (* (tanh (* -1.0 (/ (* eh t) ew))) t)))))
        double code(double eh, double ew, double t) {
        	return fabs(fma(ew, 1.0, (-eh * (tanh((-1.0 * ((eh * t) / ew))) * t))));
        }
        
        function code(eh, ew, t)
        	return abs(fma(ew, 1.0, Float64(Float64(-eh) * Float64(tanh(Float64(-1.0 * Float64(Float64(eh * t) / ew))) * t))))
        end
        
        code[eh_, ew_, t_] := N[Abs[N[(ew * 1.0 + N[((-eh) * N[(N[Tanh[N[(-1.0 * N[(N[(eh * t), $MachinePrecision] / ew), $MachinePrecision]), $MachinePrecision]], $MachinePrecision] * t), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
        
        \begin{array}{l}
        
        \\
        \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right|
        \end{array}
        
        Derivation
        1. Initial program 99.8%

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

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

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

            \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)}, -1 \cdot \left(eh \cdot \left(t \cdot \sin \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)\right)\right)\right)\right| \]
        4. Applied rewrites56.1%

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

          \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \sinh^{-1} \left(-\frac{eh}{ew} \cdot \tan t\right) \cdot t\right)\right)\right| \]
        6. Step-by-step derivation
          1. Applied rewrites55.6%

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

            \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
          3. Step-by-step derivation
            1. lower-*.f64N/A

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

              \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
            3. lower-*.f6454.8

              \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
          4. Applied rewrites54.8%

            \[\leadsto \left|\mathsf{fma}\left(ew, 1, \left(-eh\right) \cdot \left(\tanh \left(-1 \cdot \frac{eh \cdot t}{ew}\right) \cdot t\right)\right)\right| \]
          5. Add Preprocessing

          Alternative 11: 42.6% accurate, 112.6× speedup?

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

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

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

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

              \[\leadsto \left|\mathsf{fma}\left(ew, \color{blue}{\cos \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)}, -1 \cdot \left(eh \cdot \left(t \cdot \sin \tan^{-1} \left(-1 \cdot \frac{eh \cdot \sin t}{ew \cdot \cos t}\right)\right)\right)\right)\right| \]
          4. Applied rewrites56.1%

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

            \[\leadsto \left|ew\right| \]
          6. Step-by-step derivation
            1. Applied rewrites42.6%

              \[\leadsto \left|ew\right| \]
            2. Add Preprocessing

            Reproduce

            ?
            herbie shell --seed 2025110 
            (FPCore (eh ew t)
              :name "Example 2 from Robby"
              :precision binary64
              (fabs (- (* (* ew (cos t)) (cos (atan (/ (* (- eh) (tan t)) ew)))) (* (* eh (sin t)) (sin (atan (/ (* (- eh) (tan t)) ew)))))))