
(FPCore (eh ew t) :precision binary64 (let* ((t_1 (atan (/ (/ eh ew) (tan t))))) (fabs (+ (* (* ew (sin t)) (cos t_1)) (* (* eh (cos t)) (sin t_1))))))
double code(double eh, double ew, double t) {
double t_1 = atan(((eh / ew) / tan(t)));
return fabs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
}
real(8) function code(eh, ew, t)
real(8), intent (in) :: eh
real(8), intent (in) :: ew
real(8), intent (in) :: t
real(8) :: t_1
t_1 = atan(((eh / ew) / tan(t)))
code = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))))
end function
public static double code(double eh, double ew, double t) {
double t_1 = Math.atan(((eh / ew) / Math.tan(t)));
return Math.abs((((ew * Math.sin(t)) * Math.cos(t_1)) + ((eh * Math.cos(t)) * Math.sin(t_1))));
}
def code(eh, ew, t): t_1 = math.atan(((eh / ew) / math.tan(t))) return math.fabs((((ew * math.sin(t)) * math.cos(t_1)) + ((eh * math.cos(t)) * math.sin(t_1))))
function code(eh, ew, t) t_1 = atan(Float64(Float64(eh / ew) / tan(t))) return abs(Float64(Float64(Float64(ew * sin(t)) * cos(t_1)) + Float64(Float64(eh * cos(t)) * sin(t_1)))) end
function tmp = code(eh, ew, t) t_1 = atan(((eh / ew) / tan(t))); tmp = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1)))); end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$1], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right|
\end{array}
\end{array}
Sampling outcomes in binary64 precision:
Herbie found 9 alternatives:
| Alternative | Accuracy | Speedup |
|---|
(FPCore (eh ew t) :precision binary64 (let* ((t_1 (atan (/ (/ eh ew) (tan t))))) (fabs (+ (* (* ew (sin t)) (cos t_1)) (* (* eh (cos t)) (sin t_1))))))
double code(double eh, double ew, double t) {
double t_1 = atan(((eh / ew) / tan(t)));
return fabs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))));
}
real(8) function code(eh, ew, t)
real(8), intent (in) :: eh
real(8), intent (in) :: ew
real(8), intent (in) :: t
real(8) :: t_1
t_1 = atan(((eh / ew) / tan(t)))
code = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1))))
end function
public static double code(double eh, double ew, double t) {
double t_1 = Math.atan(((eh / ew) / Math.tan(t)));
return Math.abs((((ew * Math.sin(t)) * Math.cos(t_1)) + ((eh * Math.cos(t)) * Math.sin(t_1))));
}
def code(eh, ew, t): t_1 = math.atan(((eh / ew) / math.tan(t))) return math.fabs((((ew * math.sin(t)) * math.cos(t_1)) + ((eh * math.cos(t)) * math.sin(t_1))))
function code(eh, ew, t) t_1 = atan(Float64(Float64(eh / ew) / tan(t))) return abs(Float64(Float64(Float64(ew * sin(t)) * cos(t_1)) + Float64(Float64(eh * cos(t)) * sin(t_1)))) end
function tmp = code(eh, ew, t) t_1 = atan(((eh / ew) / tan(t))); tmp = abs((((ew * sin(t)) * cos(t_1)) + ((eh * cos(t)) * sin(t_1)))); end
code[eh_, ew_, t_] := Block[{t$95$1 = N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[t$95$1], $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[t$95$1], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right)\\
\left|\left(ew \cdot \sin t\right) \cdot \cos t\_1 + \left(eh \cdot \cos t\right) \cdot \sin t\_1\right|
\end{array}
\end{array}
(FPCore (eh ew t)
:precision binary64
(let* ((t_1 (/ (/ eh ew) (tan t))))
(fabs
(+
(* (* ew (sin t)) (/ 1.0 (hypot 1.0 t_1)))
(* (* eh (cos t)) (sin (atan t_1)))))))
double code(double eh, double ew, double t) {
double t_1 = (eh / ew) / tan(t);
return fabs((((ew * sin(t)) * (1.0 / hypot(1.0, t_1))) + ((eh * cos(t)) * sin(atan(t_1)))));
}
public static double code(double eh, double ew, double t) {
double t_1 = (eh / ew) / Math.tan(t);
return Math.abs((((ew * Math.sin(t)) * (1.0 / Math.hypot(1.0, t_1))) + ((eh * Math.cos(t)) * Math.sin(Math.atan(t_1)))));
}
def code(eh, ew, t): t_1 = (eh / ew) / math.tan(t) return math.fabs((((ew * math.sin(t)) * (1.0 / math.hypot(1.0, t_1))) + ((eh * math.cos(t)) * math.sin(math.atan(t_1)))))
function code(eh, ew, t) t_1 = Float64(Float64(eh / ew) / tan(t)) return abs(Float64(Float64(Float64(ew * sin(t)) * Float64(1.0 / hypot(1.0, t_1))) + Float64(Float64(eh * cos(t)) * sin(atan(t_1))))) end
function tmp = code(eh, ew, t) t_1 = (eh / ew) / tan(t); tmp = abs((((ew * sin(t)) * (1.0 / hypot(1.0, t_1))) + ((eh * cos(t)) * sin(atan(t_1))))); end
code[eh_, ew_, t_] := Block[{t$95$1 = N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]}, N[Abs[N[(N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[(1.0 / N[Sqrt[1.0 ^ 2 + t$95$1 ^ 2], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[N[ArcTan[t$95$1], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]]
\begin{array}{l}
\\
\begin{array}{l}
t_1 := \frac{\frac{eh}{ew}}{\tan t}\\
\left|\left(ew \cdot \sin t\right) \cdot \frac{1}{\mathsf{hypot}\left(1, t\_1\right)} + \left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} t\_1\right|
\end{array}
\end{array}
Initial program 99.8%
associate-/r*99.8%
cos-atan99.8%
hypot-1-def99.8%
Applied egg-rr99.8%
associate-/r*99.8%
Simplified99.8%
Final simplification99.8%
(FPCore (eh ew t) :precision binary64 (fabs (+ (* (* eh (cos t)) (sin (atan (/ (/ eh ew) (tan t))))) (* (* ew (sin t)) (cos (atan (/ eh (* ew t))))))))
double code(double eh, double ew, double t) {
return fabs((((eh * cos(t)) * sin(atan(((eh / ew) / tan(t))))) + ((ew * sin(t)) * cos(atan((eh / (ew * t)))))));
}
real(8) function code(eh, ew, t)
real(8), intent (in) :: eh
real(8), intent (in) :: ew
real(8), intent (in) :: t
code = abs((((eh * cos(t)) * sin(atan(((eh / ew) / tan(t))))) + ((ew * sin(t)) * cos(atan((eh / (ew * t)))))))
end function
public static double code(double eh, double ew, double t) {
return Math.abs((((eh * Math.cos(t)) * Math.sin(Math.atan(((eh / ew) / Math.tan(t))))) + ((ew * Math.sin(t)) * Math.cos(Math.atan((eh / (ew * t)))))));
}
def code(eh, ew, t): return math.fabs((((eh * math.cos(t)) * math.sin(math.atan(((eh / ew) / math.tan(t))))) + ((ew * math.sin(t)) * math.cos(math.atan((eh / (ew * t)))))))
function code(eh, ew, t) return abs(Float64(Float64(Float64(eh * cos(t)) * sin(atan(Float64(Float64(eh / ew) / tan(t))))) + Float64(Float64(ew * sin(t)) * cos(atan(Float64(eh / Float64(ew * t))))))) end
function tmp = code(eh, ew, t) tmp = abs((((eh * cos(t)) * sin(atan(((eh / ew) / tan(t))))) + ((ew * sin(t)) * cos(atan((eh / (ew * t))))))); end
code[eh_, ew_, t_] := N[Abs[N[(N[(N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision] * N[Sin[N[ArcTan[N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(N[(ew * N[Sin[t], $MachinePrecision]), $MachinePrecision] * N[Cos[N[ArcTan[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\left(eh \cdot \cos t\right) \cdot \sin \tan^{-1} \left(\frac{\frac{eh}{ew}}{\tan t}\right) + \left(ew \cdot \sin t\right) \cdot \cos \tan^{-1} \left(\frac{eh}{ew \cdot t}\right)\right|
\end{array}
Initial program 99.8%
Taylor expanded in t around 0 98.9%
Final simplification98.9%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (* (sin t) (cos (atan (/ eh (* ew (tan t)))))) (* (cos t) (- eh)))))
double code(double eh, double ew, double t) {
return fabs(fma(ew, (sin(t) * cos(atan((eh / (ew * tan(t)))))), (cos(t) * -eh)));
}
function code(eh, ew, t) return abs(fma(ew, Float64(sin(t) * cos(atan(Float64(eh / Float64(ew * tan(t)))))), Float64(cos(t) * Float64(-eh)))) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[(N[Sin[t], $MachinePrecision] * N[Cos[N[ArcTan[N[(eh / N[(ew * N[Tan[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(N[Cos[t], $MachinePrecision] * (-eh)), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t \cdot \cos \tan^{-1} \left(\frac{eh}{ew \cdot \tan t}\right), \cos t \cdot \left(-eh\right)\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in eh around -inf 98.6%
associate-*r*98.6%
neg-mul-198.6%
Simplified98.6%
Final simplification98.6%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (* (sin t) (cos (atan (/ eh (* ew (tan t)))))) (* eh (cos t)))))
double code(double eh, double ew, double t) {
return fabs(fma(ew, (sin(t) * cos(atan((eh / (ew * tan(t)))))), (eh * cos(t))));
}
function code(eh, ew, t) return abs(fma(ew, Float64(sin(t) * cos(atan(Float64(eh / Float64(ew * tan(t)))))), Float64(eh * cos(t)))) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[(N[Sin[t], $MachinePrecision] * N[Cos[N[ArcTan[N[(eh / N[(ew * N[Tan[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t \cdot \cos \tan^{-1} \left(\frac{eh}{ew \cdot \tan t}\right), eh \cdot \cos t\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in eh around inf 98.6%
Final simplification98.6%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (* (sin t) (/ 1.0 (hypot 1.0 (/ (/ eh ew) (tan t))))) (* eh (cos t)))))
double code(double eh, double ew, double t) {
return fabs(fma(ew, (sin(t) * (1.0 / hypot(1.0, ((eh / ew) / tan(t))))), (eh * cos(t))));
}
function code(eh, ew, t) return abs(fma(ew, Float64(sin(t) * Float64(1.0 / hypot(1.0, Float64(Float64(eh / ew) / tan(t))))), Float64(eh * cos(t)))) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[(N[Sin[t], $MachinePrecision] * N[(1.0 / N[Sqrt[1.0 ^ 2 + N[(N[(eh / ew), $MachinePrecision] / N[Tan[t], $MachinePrecision]), $MachinePrecision] ^ 2], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] + N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t \cdot \frac{1}{\mathsf{hypot}\left(1, \frac{\frac{eh}{ew}}{\tan t}\right)}, eh \cdot \cos t\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in eh around inf 98.6%
associate-/r*98.6%
cos-atan98.6%
metadata-eval98.6%
hypot-undefine98.6%
Applied egg-rr98.6%
Final simplification98.6%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (* (sin t) (cos (atan (/ eh (* ew t))))) (* eh (cos t)))))
double code(double eh, double ew, double t) {
return fabs(fma(ew, (sin(t) * cos(atan((eh / (ew * t))))), (eh * cos(t))));
}
function code(eh, ew, t) return abs(fma(ew, Float64(sin(t) * cos(atan(Float64(eh / Float64(ew * t))))), Float64(eh * cos(t)))) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[(N[Sin[t], $MachinePrecision] * N[Cos[N[ArcTan[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + N[(eh * N[Cos[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t \cdot \cos \tan^{-1} \left(\frac{eh}{ew \cdot t}\right), eh \cdot \cos t\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in eh around inf 98.6%
Taylor expanded in t around 0 98.4%
*-commutative80.1%
Simplified98.4%
Final simplification98.4%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (fabs (/ (sin t) (hypot 1.0 (/ eh (* ew (tan t)))))) eh)))
double code(double eh, double ew, double t) {
return fabs(fma(ew, fabs((sin(t) / hypot(1.0, (eh / (ew * tan(t)))))), eh));
}
function code(eh, ew, t) return abs(fma(ew, abs(Float64(sin(t) / hypot(1.0, Float64(eh / Float64(ew * tan(t)))))), eh)) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[Abs[N[(N[Sin[t], $MachinePrecision] / N[Sqrt[1.0 ^ 2 + N[(eh / N[(ew * N[Tan[t], $MachinePrecision]), $MachinePrecision]), $MachinePrecision] ^ 2], $MachinePrecision]), $MachinePrecision]], $MachinePrecision] + eh), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \left|\frac{\sin t}{\mathsf{hypot}\left(1, \frac{eh}{ew \cdot \tan t}\right)}\right|, eh\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in t around 0 80.1%
add-cbrt-cube70.7%
pow370.6%
cos-atan70.6%
un-div-inv70.6%
hypot-1-def70.6%
associate-/r*70.6%
Applied egg-rr70.6%
rem-cbrt-cube80.1%
add-sqr-sqrt50.7%
sqrt-unprod72.8%
pow272.8%
associate-/r*72.8%
Applied egg-rr72.8%
unpow272.8%
rem-sqrt-square80.1%
Simplified80.1%
Final simplification80.1%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (* (sin t) (cos (atan (/ eh (* ew t))))) eh)))
double code(double eh, double ew, double t) {
return fabs(fma(ew, (sin(t) * cos(atan((eh / (ew * t))))), eh));
}
function code(eh, ew, t) return abs(fma(ew, Float64(sin(t) * cos(atan(Float64(eh / Float64(ew * t))))), eh)) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[(N[Sin[t], $MachinePrecision] * N[Cos[N[ArcTan[N[(eh / N[(ew * t), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]], $MachinePrecision]), $MachinePrecision] + eh), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t \cdot \cos \tan^{-1} \left(\frac{eh}{ew \cdot t}\right), eh\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in t around 0 80.1%
Taylor expanded in t around 0 80.1%
*-commutative80.1%
Simplified80.1%
Final simplification80.1%
(FPCore (eh ew t) :precision binary64 (fabs (fma ew (sin t) eh)))
double code(double eh, double ew, double t) {
return fabs(fma(ew, sin(t), eh));
}
function code(eh, ew, t) return abs(fma(ew, sin(t), eh)) end
code[eh_, ew_, t_] := N[Abs[N[(ew * N[Sin[t], $MachinePrecision] + eh), $MachinePrecision]], $MachinePrecision]
\begin{array}{l}
\\
\left|\mathsf{fma}\left(ew, \sin t, eh\right)\right|
\end{array}
Initial program 99.8%
associate-*l*99.8%
fma-define99.8%
associate-/r*99.8%
associate-*l*99.8%
associate-/r*99.8%
Simplified99.8%
associate-*r*99.8%
sin-atan61.7%
associate-*r/59.7%
hypot-1-def67.1%
Applied egg-rr67.1%
Taylor expanded in t around 0 80.1%
add-cbrt-cube70.7%
pow370.6%
cos-atan70.6%
un-div-inv70.6%
hypot-1-def70.6%
associate-/r*70.6%
Applied egg-rr70.6%
Taylor expanded in eh around 0 79.9%
Final simplification79.9%
herbie shell --seed 2024095
(FPCore (eh ew t)
:name "Example from Robby"
:precision binary64
(fabs (+ (* (* ew (sin t)) (cos (atan (/ (/ eh ew) (tan t))))) (* (* eh (cos t)) (sin (atan (/ (/ eh ew) (tan t))))))))