ab-angle->ABCF A

Percentage Accurate: 79.7% → 79.6%
Time: 13.0s
Alternatives: 5
Speedup: N/A×

Specification

?
\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{angle}{180} \cdot \pi\\ {\left(a \cdot \sin t\_0\right)}^{2} + {\left(b \cdot \cos t\_0\right)}^{2} \end{array} \end{array} \]
(FPCore (a b angle)
 :precision binary64
 (let* ((t_0 (* (/ angle 180.0) PI)))
   (+ (pow (* a (sin t_0)) 2.0) (pow (* b (cos t_0)) 2.0))))
double code(double a, double b, double angle) {
	double t_0 = (angle / 180.0) * ((double) M_PI);
	return pow((a * sin(t_0)), 2.0) + pow((b * cos(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
	double t_0 = (angle / 180.0) * Math.PI;
	return Math.pow((a * Math.sin(t_0)), 2.0) + Math.pow((b * Math.cos(t_0)), 2.0);
}
def code(a, b, angle):
	t_0 = (angle / 180.0) * math.pi
	return math.pow((a * math.sin(t_0)), 2.0) + math.pow((b * math.cos(t_0)), 2.0)
function code(a, b, angle)
	t_0 = Float64(Float64(angle / 180.0) * pi)
	return Float64((Float64(a * sin(t_0)) ^ 2.0) + (Float64(b * cos(t_0)) ^ 2.0))
end
function tmp = code(a, b, angle)
	t_0 = (angle / 180.0) * pi;
	tmp = ((a * sin(t_0)) ^ 2.0) + ((b * cos(t_0)) ^ 2.0);
end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(angle / 180.0), $MachinePrecision] * Pi), $MachinePrecision]}, N[(N[Power[N[(a * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \pi\\
{\left(a \cdot \sin t\_0\right)}^{2} + {\left(b \cdot \cos t\_0\right)}^{2}
\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 5 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: 79.7% accurate, 1.0× speedup?

\[\begin{array}{l} \\ \begin{array}{l} t_0 := \frac{angle}{180} \cdot \pi\\ {\left(a \cdot \sin t\_0\right)}^{2} + {\left(b \cdot \cos t\_0\right)}^{2} \end{array} \end{array} \]
(FPCore (a b angle)
 :precision binary64
 (let* ((t_0 (* (/ angle 180.0) PI)))
   (+ (pow (* a (sin t_0)) 2.0) (pow (* b (cos t_0)) 2.0))))
double code(double a, double b, double angle) {
	double t_0 = (angle / 180.0) * ((double) M_PI);
	return pow((a * sin(t_0)), 2.0) + pow((b * cos(t_0)), 2.0);
}
public static double code(double a, double b, double angle) {
	double t_0 = (angle / 180.0) * Math.PI;
	return Math.pow((a * Math.sin(t_0)), 2.0) + Math.pow((b * Math.cos(t_0)), 2.0);
}
def code(a, b, angle):
	t_0 = (angle / 180.0) * math.pi
	return math.pow((a * math.sin(t_0)), 2.0) + math.pow((b * math.cos(t_0)), 2.0)
function code(a, b, angle)
	t_0 = Float64(Float64(angle / 180.0) * pi)
	return Float64((Float64(a * sin(t_0)) ^ 2.0) + (Float64(b * cos(t_0)) ^ 2.0))
end
function tmp = code(a, b, angle)
	t_0 = (angle / 180.0) * pi;
	tmp = ((a * sin(t_0)) ^ 2.0) + ((b * cos(t_0)) ^ 2.0);
end
code[a_, b_, angle_] := Block[{t$95$0 = N[(N[(angle / 180.0), $MachinePrecision] * Pi), $MachinePrecision]}, N[(N[Power[N[(a * N[Sin[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * N[Cos[t$95$0], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}

\\
\begin{array}{l}
t_0 := \frac{angle}{180} \cdot \pi\\
{\left(a \cdot \sin t\_0\right)}^{2} + {\left(b \cdot \cos t\_0\right)}^{2}
\end{array}
\end{array}

Alternative 1: 79.6% accurate, 1.4× speedup?

\[\begin{array}{l} angle_m = \left|angle\right| \\ \begin{array}{l} \mathbf{if}\;angle\_m \leq 8.8 \cdot 10^{-8}:\\ \;\;\;\;3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(\pi \cdot \pi\right) \cdot \left(angle\_m \cdot a\right)\right) \cdot \left(angle\_m \cdot a\right)\right) + {\left(b \cdot \cos \left(\frac{angle\_m}{180} \cdot \pi\right)\right)}^{2}\\ \mathbf{else}:\\ \;\;\;\;\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle\_m}{180}\right)\right) \cdot a\right) \cdot a + {\left(b \cdot 1\right)}^{2}\\ \end{array} \end{array} \]
angle_m = (fabs.f64 angle)
(FPCore (a b angle_m)
 :precision binary64
 (if (<= angle_m 8.8e-8)
   (+
    (* 3.08641975308642e-5 (* (* (* PI PI) (* angle_m a)) (* angle_m a)))
    (pow (* b (cos (* (/ angle_m 180.0) PI))) 2.0))
   (+
    (* (* (- 0.5 (* 0.5 (cos (* (+ PI PI) (/ angle_m 180.0))))) a) a)
    (pow (* b 1.0) 2.0))))
angle_m = fabs(angle);
double code(double a, double b, double angle_m) {
	double tmp;
	if (angle_m <= 8.8e-8) {
		tmp = (3.08641975308642e-5 * (((((double) M_PI) * ((double) M_PI)) * (angle_m * a)) * (angle_m * a))) + pow((b * cos(((angle_m / 180.0) * ((double) M_PI)))), 2.0);
	} else {
		tmp = (((0.5 - (0.5 * cos(((((double) M_PI) + ((double) M_PI)) * (angle_m / 180.0))))) * a) * a) + pow((b * 1.0), 2.0);
	}
	return tmp;
}
angle_m = Math.abs(angle);
public static double code(double a, double b, double angle_m) {
	double tmp;
	if (angle_m <= 8.8e-8) {
		tmp = (3.08641975308642e-5 * (((Math.PI * Math.PI) * (angle_m * a)) * (angle_m * a))) + Math.pow((b * Math.cos(((angle_m / 180.0) * Math.PI))), 2.0);
	} else {
		tmp = (((0.5 - (0.5 * Math.cos(((Math.PI + Math.PI) * (angle_m / 180.0))))) * a) * a) + Math.pow((b * 1.0), 2.0);
	}
	return tmp;
}
angle_m = math.fabs(angle)
def code(a, b, angle_m):
	tmp = 0
	if angle_m <= 8.8e-8:
		tmp = (3.08641975308642e-5 * (((math.pi * math.pi) * (angle_m * a)) * (angle_m * a))) + math.pow((b * math.cos(((angle_m / 180.0) * math.pi))), 2.0)
	else:
		tmp = (((0.5 - (0.5 * math.cos(((math.pi + math.pi) * (angle_m / 180.0))))) * a) * a) + math.pow((b * 1.0), 2.0)
	return tmp
angle_m = abs(angle)
function code(a, b, angle_m)
	tmp = 0.0
	if (angle_m <= 8.8e-8)
		tmp = Float64(Float64(3.08641975308642e-5 * Float64(Float64(Float64(pi * pi) * Float64(angle_m * a)) * Float64(angle_m * a))) + (Float64(b * cos(Float64(Float64(angle_m / 180.0) * pi))) ^ 2.0));
	else
		tmp = Float64(Float64(Float64(Float64(0.5 - Float64(0.5 * cos(Float64(Float64(pi + pi) * Float64(angle_m / 180.0))))) * a) * a) + (Float64(b * 1.0) ^ 2.0));
	end
	return tmp
end
angle_m = abs(angle);
function tmp_2 = code(a, b, angle_m)
	tmp = 0.0;
	if (angle_m <= 8.8e-8)
		tmp = (3.08641975308642e-5 * (((pi * pi) * (angle_m * a)) * (angle_m * a))) + ((b * cos(((angle_m / 180.0) * pi))) ^ 2.0);
	else
		tmp = (((0.5 - (0.5 * cos(((pi + pi) * (angle_m / 180.0))))) * a) * a) + ((b * 1.0) ^ 2.0);
	end
	tmp_2 = tmp;
end
angle_m = N[Abs[angle], $MachinePrecision]
code[a_, b_, angle$95$m_] := If[LessEqual[angle$95$m, 8.8e-8], N[(N[(3.08641975308642e-5 * N[(N[(N[(Pi * Pi), $MachinePrecision] * N[(angle$95$m * a), $MachinePrecision]), $MachinePrecision] * N[(angle$95$m * a), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[Power[N[(b * N[Cos[N[(N[(angle$95$m / 180.0), $MachinePrecision] * Pi), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision], N[(N[(N[(N[(0.5 - N[(0.5 * N[Cos[N[(N[(Pi + Pi), $MachinePrecision] * N[(angle$95$m / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * a), $MachinePrecision] * a), $MachinePrecision] + N[Power[N[(b * 1.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
angle_m = \left|angle\right|

\\
\begin{array}{l}
\mathbf{if}\;angle\_m \leq 8.8 \cdot 10^{-8}:\\
\;\;\;\;3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(\pi \cdot \pi\right) \cdot \left(angle\_m \cdot a\right)\right) \cdot \left(angle\_m \cdot a\right)\right) + {\left(b \cdot \cos \left(\frac{angle\_m}{180} \cdot \pi\right)\right)}^{2}\\

\mathbf{else}:\\
\;\;\;\;\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle\_m}{180}\right)\right) \cdot a\right) \cdot a + {\left(b \cdot 1\right)}^{2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if angle < 8.7999999999999994e-8

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto \color{blue}{\frac{1}{32400} \cdot \left({a}^{2} \cdot \left({angle}^{2} \cdot {\mathsf{PI}\left(\right)}^{2}\right)\right)} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    3. Applied rewrites64.8%

      \[\leadsto \color{blue}{3.08641975308642 \cdot 10^{-5} \cdot \left({a}^{2} \cdot \left({angle}^{2} \cdot {\pi}^{2}\right)\right)} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    4. Applied rewrites74.9%

      \[\leadsto 3.08641975308642 \cdot 10^{-5} \cdot \left(\left(\left(\pi \cdot \pi\right) \cdot \left(angle \cdot a\right)\right) \cdot \color{blue}{\left(angle \cdot a\right)}\right) + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]

    if 8.7999999999999994e-8 < angle

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    3. Applied rewrites79.6%

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    4. Applied rewrites68.4%

      \[\leadsto \color{blue}{\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle}{180}\right)\right) \cdot a\right) \cdot a} + {\left(b \cdot 1\right)}^{2} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 2: 79.5% accurate, 1.5× speedup?

\[\begin{array}{l} angle_m = \left|angle\right| \\ {\left(a \cdot \sin \left(0.005555555555555556 \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + {\left(b \cdot 1\right)}^{2} \end{array} \]
angle_m = (fabs.f64 angle)
(FPCore (a b angle_m)
 :precision binary64
 (+
  (pow (* a (sin (* 0.005555555555555556 (* angle_m PI)))) 2.0)
  (pow (* b 1.0) 2.0)))
angle_m = fabs(angle);
double code(double a, double b, double angle_m) {
	return pow((a * sin((0.005555555555555556 * (angle_m * ((double) M_PI))))), 2.0) + pow((b * 1.0), 2.0);
}
angle_m = Math.abs(angle);
public static double code(double a, double b, double angle_m) {
	return Math.pow((a * Math.sin((0.005555555555555556 * (angle_m * Math.PI)))), 2.0) + Math.pow((b * 1.0), 2.0);
}
angle_m = math.fabs(angle)
def code(a, b, angle_m):
	return math.pow((a * math.sin((0.005555555555555556 * (angle_m * math.pi)))), 2.0) + math.pow((b * 1.0), 2.0)
angle_m = abs(angle)
function code(a, b, angle_m)
	return Float64((Float64(a * sin(Float64(0.005555555555555556 * Float64(angle_m * pi)))) ^ 2.0) + (Float64(b * 1.0) ^ 2.0))
end
angle_m = abs(angle);
function tmp = code(a, b, angle_m)
	tmp = ((a * sin((0.005555555555555556 * (angle_m * pi)))) ^ 2.0) + ((b * 1.0) ^ 2.0);
end
angle_m = N[Abs[angle], $MachinePrecision]
code[a_, b_, angle$95$m_] := N[(N[Power[N[(a * N[Sin[N[(0.005555555555555556 * N[(angle$95$m * Pi), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * 1.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]
\begin{array}{l}
angle_m = \left|angle\right|

\\
{\left(a \cdot \sin \left(0.005555555555555556 \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + {\left(b \cdot 1\right)}^{2}
\end{array}
Derivation
  1. Initial program 79.7%

    \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
  2. Taylor expanded in angle around 0

    \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
  3. Applied rewrites79.6%

    \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
  4. Taylor expanded in angle around inf

    \[\leadsto {\left(a \cdot \color{blue}{\sin \left(\frac{1}{180} \cdot \left(angle \cdot \mathsf{PI}\left(\right)\right)\right)}\right)}^{2} + {\left(b \cdot 1\right)}^{2} \]
  5. Applied rewrites79.6%

    \[\leadsto {\left(a \cdot \color{blue}{\sin \left(0.005555555555555556 \cdot \left(angle \cdot \pi\right)\right)}\right)}^{2} + {\left(b \cdot 1\right)}^{2} \]
  6. Add Preprocessing

Alternative 3: 79.5% accurate, 1.5× speedup?

\[\begin{array}{l} angle_m = \left|angle\right| \\ \begin{array}{l} t_0 := {\left(b \cdot 1\right)}^{2}\\ \mathbf{if}\;angle\_m \leq 8.8 \cdot 10^{-8}:\\ \;\;\;\;{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + t\_0\\ \mathbf{else}:\\ \;\;\;\;\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle\_m}{180}\right)\right) \cdot a\right) \cdot a + t\_0\\ \end{array} \end{array} \]
angle_m = (fabs.f64 angle)
(FPCore (a b angle_m)
 :precision binary64
 (let* ((t_0 (pow (* b 1.0) 2.0)))
   (if (<= angle_m 8.8e-8)
     (+ (pow (* 0.005555555555555556 (* a (* angle_m PI))) 2.0) t_0)
     (+
      (* (* (- 0.5 (* 0.5 (cos (* (+ PI PI) (/ angle_m 180.0))))) a) a)
      t_0))))
angle_m = fabs(angle);
double code(double a, double b, double angle_m) {
	double t_0 = pow((b * 1.0), 2.0);
	double tmp;
	if (angle_m <= 8.8e-8) {
		tmp = pow((0.005555555555555556 * (a * (angle_m * ((double) M_PI)))), 2.0) + t_0;
	} else {
		tmp = (((0.5 - (0.5 * cos(((((double) M_PI) + ((double) M_PI)) * (angle_m / 180.0))))) * a) * a) + t_0;
	}
	return tmp;
}
angle_m = Math.abs(angle);
public static double code(double a, double b, double angle_m) {
	double t_0 = Math.pow((b * 1.0), 2.0);
	double tmp;
	if (angle_m <= 8.8e-8) {
		tmp = Math.pow((0.005555555555555556 * (a * (angle_m * Math.PI))), 2.0) + t_0;
	} else {
		tmp = (((0.5 - (0.5 * Math.cos(((Math.PI + Math.PI) * (angle_m / 180.0))))) * a) * a) + t_0;
	}
	return tmp;
}
angle_m = math.fabs(angle)
def code(a, b, angle_m):
	t_0 = math.pow((b * 1.0), 2.0)
	tmp = 0
	if angle_m <= 8.8e-8:
		tmp = math.pow((0.005555555555555556 * (a * (angle_m * math.pi))), 2.0) + t_0
	else:
		tmp = (((0.5 - (0.5 * math.cos(((math.pi + math.pi) * (angle_m / 180.0))))) * a) * a) + t_0
	return tmp
angle_m = abs(angle)
function code(a, b, angle_m)
	t_0 = Float64(b * 1.0) ^ 2.0
	tmp = 0.0
	if (angle_m <= 8.8e-8)
		tmp = Float64((Float64(0.005555555555555556 * Float64(a * Float64(angle_m * pi))) ^ 2.0) + t_0);
	else
		tmp = Float64(Float64(Float64(Float64(0.5 - Float64(0.5 * cos(Float64(Float64(pi + pi) * Float64(angle_m / 180.0))))) * a) * a) + t_0);
	end
	return tmp
end
angle_m = abs(angle);
function tmp_2 = code(a, b, angle_m)
	t_0 = (b * 1.0) ^ 2.0;
	tmp = 0.0;
	if (angle_m <= 8.8e-8)
		tmp = ((0.005555555555555556 * (a * (angle_m * pi))) ^ 2.0) + t_0;
	else
		tmp = (((0.5 - (0.5 * cos(((pi + pi) * (angle_m / 180.0))))) * a) * a) + t_0;
	end
	tmp_2 = tmp;
end
angle_m = N[Abs[angle], $MachinePrecision]
code[a_, b_, angle$95$m_] := Block[{t$95$0 = N[Power[N[(b * 1.0), $MachinePrecision], 2.0], $MachinePrecision]}, If[LessEqual[angle$95$m, 8.8e-8], N[(N[Power[N[(0.005555555555555556 * N[(a * N[(angle$95$m * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + t$95$0), $MachinePrecision], N[(N[(N[(N[(0.5 - N[(0.5 * N[Cos[N[(N[(Pi + Pi), $MachinePrecision] * N[(angle$95$m / 180.0), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] * a), $MachinePrecision] * a), $MachinePrecision] + t$95$0), $MachinePrecision]]]
\begin{array}{l}
angle_m = \left|angle\right|

\\
\begin{array}{l}
t_0 := {\left(b \cdot 1\right)}^{2}\\
\mathbf{if}\;angle\_m \leq 8.8 \cdot 10^{-8}:\\
\;\;\;\;{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + t\_0\\

\mathbf{else}:\\
\;\;\;\;\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle\_m}{180}\right)\right) \cdot a\right) \cdot a + t\_0\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if angle < 8.7999999999999994e-8

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    3. Applied rewrites79.6%

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    4. Taylor expanded in angle around 0

      \[\leadsto {\color{blue}{\left(\frac{1}{180} \cdot \left(a \cdot \left(angle \cdot \mathsf{PI}\left(\right)\right)\right)\right)}}^{2} + {\left(b \cdot 1\right)}^{2} \]
    5. Applied rewrites74.7%

      \[\leadsto {\color{blue}{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle \cdot \pi\right)\right)\right)}}^{2} + {\left(b \cdot 1\right)}^{2} \]

    if 8.7999999999999994e-8 < angle

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    3. Applied rewrites79.6%

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    4. Applied rewrites68.4%

      \[\leadsto \color{blue}{\left(\left(0.5 - 0.5 \cdot \cos \left(\left(\pi + \pi\right) \cdot \frac{angle}{180}\right)\right) \cdot a\right) \cdot a} + {\left(b \cdot 1\right)}^{2} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 4: 66.9% accurate, 2.3× speedup?

\[\begin{array}{l} angle_m = \left|angle\right| \\ \begin{array}{l} \mathbf{if}\;a \leq 2.15 \cdot 10^{-17}:\\ \;\;\;\;b \cdot b\\ \mathbf{else}:\\ \;\;\;\;{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + {\left(b \cdot 1\right)}^{2}\\ \end{array} \end{array} \]
angle_m = (fabs.f64 angle)
(FPCore (a b angle_m)
 :precision binary64
 (if (<= a 2.15e-17)
   (* b b)
   (+
    (pow (* 0.005555555555555556 (* a (* angle_m PI))) 2.0)
    (pow (* b 1.0) 2.0))))
angle_m = fabs(angle);
double code(double a, double b, double angle_m) {
	double tmp;
	if (a <= 2.15e-17) {
		tmp = b * b;
	} else {
		tmp = pow((0.005555555555555556 * (a * (angle_m * ((double) M_PI)))), 2.0) + pow((b * 1.0), 2.0);
	}
	return tmp;
}
angle_m = Math.abs(angle);
public static double code(double a, double b, double angle_m) {
	double tmp;
	if (a <= 2.15e-17) {
		tmp = b * b;
	} else {
		tmp = Math.pow((0.005555555555555556 * (a * (angle_m * Math.PI))), 2.0) + Math.pow((b * 1.0), 2.0);
	}
	return tmp;
}
angle_m = math.fabs(angle)
def code(a, b, angle_m):
	tmp = 0
	if a <= 2.15e-17:
		tmp = b * b
	else:
		tmp = math.pow((0.005555555555555556 * (a * (angle_m * math.pi))), 2.0) + math.pow((b * 1.0), 2.0)
	return tmp
angle_m = abs(angle)
function code(a, b, angle_m)
	tmp = 0.0
	if (a <= 2.15e-17)
		tmp = Float64(b * b);
	else
		tmp = Float64((Float64(0.005555555555555556 * Float64(a * Float64(angle_m * pi))) ^ 2.0) + (Float64(b * 1.0) ^ 2.0));
	end
	return tmp
end
angle_m = abs(angle);
function tmp_2 = code(a, b, angle_m)
	tmp = 0.0;
	if (a <= 2.15e-17)
		tmp = b * b;
	else
		tmp = ((0.005555555555555556 * (a * (angle_m * pi))) ^ 2.0) + ((b * 1.0) ^ 2.0);
	end
	tmp_2 = tmp;
end
angle_m = N[Abs[angle], $MachinePrecision]
code[a_, b_, angle$95$m_] := If[LessEqual[a, 2.15e-17], N[(b * b), $MachinePrecision], N[(N[Power[N[(0.005555555555555556 * N[(a * N[(angle$95$m * Pi), $MachinePrecision]), $MachinePrecision]), $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[(b * 1.0), $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]]
\begin{array}{l}
angle_m = \left|angle\right|

\\
\begin{array}{l}
\mathbf{if}\;a \leq 2.15 \cdot 10^{-17}:\\
\;\;\;\;b \cdot b\\

\mathbf{else}:\\
\;\;\;\;{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle\_m \cdot \pi\right)\right)\right)}^{2} + {\left(b \cdot 1\right)}^{2}\\


\end{array}
\end{array}
Derivation
  1. Split input into 2 regimes
  2. if a < 2.15000000000000012e-17

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto \color{blue}{{b}^{2}} \]
    3. Applied rewrites57.4%

      \[\leadsto \color{blue}{{b}^{2}} \]
    4. Applied rewrites57.4%

      \[\leadsto b \cdot \color{blue}{b} \]

    if 2.15000000000000012e-17 < a

    1. Initial program 79.7%

      \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
    2. Taylor expanded in angle around 0

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    3. Applied rewrites79.6%

      \[\leadsto {\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \color{blue}{1}\right)}^{2} \]
    4. Taylor expanded in angle around 0

      \[\leadsto {\color{blue}{\left(\frac{1}{180} \cdot \left(a \cdot \left(angle \cdot \mathsf{PI}\left(\right)\right)\right)\right)}}^{2} + {\left(b \cdot 1\right)}^{2} \]
    5. Applied rewrites74.7%

      \[\leadsto {\color{blue}{\left(0.005555555555555556 \cdot \left(a \cdot \left(angle \cdot \pi\right)\right)\right)}}^{2} + {\left(b \cdot 1\right)}^{2} \]
  3. Recombined 2 regimes into one program.
  4. Add Preprocessing

Alternative 5: 57.4% accurate, 29.7× speedup?

\[\begin{array}{l} angle_m = \left|angle\right| \\ b \cdot b \end{array} \]
angle_m = (fabs.f64 angle)
(FPCore (a b angle_m) :precision binary64 (* b b))
angle_m = fabs(angle);
double code(double a, double b, double angle_m) {
	return b * b;
}
angle_m =     private
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(a, b, angle_m)
use fmin_fmax_functions
    real(8), intent (in) :: a
    real(8), intent (in) :: b
    real(8), intent (in) :: angle_m
    code = b * b
end function
angle_m = Math.abs(angle);
public static double code(double a, double b, double angle_m) {
	return b * b;
}
angle_m = math.fabs(angle)
def code(a, b, angle_m):
	return b * b
angle_m = abs(angle)
function code(a, b, angle_m)
	return Float64(b * b)
end
angle_m = abs(angle);
function tmp = code(a, b, angle_m)
	tmp = b * b;
end
angle_m = N[Abs[angle], $MachinePrecision]
code[a_, b_, angle$95$m_] := N[(b * b), $MachinePrecision]
\begin{array}{l}
angle_m = \left|angle\right|

\\
b \cdot b
\end{array}
Derivation
  1. Initial program 79.7%

    \[{\left(a \cdot \sin \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} + {\left(b \cdot \cos \left(\frac{angle}{180} \cdot \pi\right)\right)}^{2} \]
  2. Taylor expanded in angle around 0

    \[\leadsto \color{blue}{{b}^{2}} \]
  3. Applied rewrites57.4%

    \[\leadsto \color{blue}{{b}^{2}} \]
  4. Applied rewrites57.4%

    \[\leadsto b \cdot \color{blue}{b} \]
  5. Add Preprocessing

Reproduce

?
herbie shell --seed 2025153 
(FPCore (a b angle)
  :name "ab-angle->ABCF A"
  :precision binary64
  (+ (pow (* a (sin (* (/ angle 180.0) PI))) 2.0) (pow (* b (cos (* (/ angle 180.0) PI))) 2.0)))