Average Error: 1.0 → 0.0
Time: 15.1s
Precision: binary64
Cost: 45696
\[\sqrt{\frac{1}{2} \cdot \left(1 + \frac{1}{\sqrt{1 + {\left(\frac{2 \cdot \ell}{Om}\right)}^{2} \cdot \left({\sin kx}^{2} + {\sin ky}^{2}\right)}}\right)} \]
\[\sqrt{0.5 + 0.5 \cdot {\left(\sqrt{\mathsf{hypot}\left(1, \mathsf{hypot}\left(\sin ky, \sin kx\right) \cdot \left(2 \cdot \frac{\ell}{Om}\right)\right)}\right)}^{-2}} \]
(FPCore (l Om kx ky)
 :precision binary64
 (sqrt
  (*
   (/ 1.0 2.0)
   (+
    1.0
    (/
     1.0
     (sqrt
      (+
       1.0
       (*
        (pow (/ (* 2.0 l) Om) 2.0)
        (+ (pow (sin kx) 2.0) (pow (sin ky) 2.0))))))))))
(FPCore (l Om kx ky)
 :precision binary64
 (sqrt
  (+
   0.5
   (*
    0.5
    (pow
     (sqrt (hypot 1.0 (* (hypot (sin ky) (sin kx)) (* 2.0 (/ l Om)))))
     -2.0)))))
double code(double l, double Om, double kx, double ky) {
	return sqrt(((1.0 / 2.0) * (1.0 + (1.0 / sqrt((1.0 + (pow(((2.0 * l) / Om), 2.0) * (pow(sin(kx), 2.0) + pow(sin(ky), 2.0)))))))));
}
double code(double l, double Om, double kx, double ky) {
	return sqrt((0.5 + (0.5 * pow(sqrt(hypot(1.0, (hypot(sin(ky), sin(kx)) * (2.0 * (l / Om))))), -2.0))));
}
public static double code(double l, double Om, double kx, double ky) {
	return Math.sqrt(((1.0 / 2.0) * (1.0 + (1.0 / Math.sqrt((1.0 + (Math.pow(((2.0 * l) / Om), 2.0) * (Math.pow(Math.sin(kx), 2.0) + Math.pow(Math.sin(ky), 2.0)))))))));
}
public static double code(double l, double Om, double kx, double ky) {
	return Math.sqrt((0.5 + (0.5 * Math.pow(Math.sqrt(Math.hypot(1.0, (Math.hypot(Math.sin(ky), Math.sin(kx)) * (2.0 * (l / Om))))), -2.0))));
}
def code(l, Om, kx, ky):
	return math.sqrt(((1.0 / 2.0) * (1.0 + (1.0 / math.sqrt((1.0 + (math.pow(((2.0 * l) / Om), 2.0) * (math.pow(math.sin(kx), 2.0) + math.pow(math.sin(ky), 2.0)))))))))
def code(l, Om, kx, ky):
	return math.sqrt((0.5 + (0.5 * math.pow(math.sqrt(math.hypot(1.0, (math.hypot(math.sin(ky), math.sin(kx)) * (2.0 * (l / Om))))), -2.0))))
function code(l, Om, kx, ky)
	return sqrt(Float64(Float64(1.0 / 2.0) * Float64(1.0 + Float64(1.0 / sqrt(Float64(1.0 + Float64((Float64(Float64(2.0 * l) / Om) ^ 2.0) * Float64((sin(kx) ^ 2.0) + (sin(ky) ^ 2.0)))))))))
end
function code(l, Om, kx, ky)
	return sqrt(Float64(0.5 + Float64(0.5 * (sqrt(hypot(1.0, Float64(hypot(sin(ky), sin(kx)) * Float64(2.0 * Float64(l / Om))))) ^ -2.0))))
end
function tmp = code(l, Om, kx, ky)
	tmp = sqrt(((1.0 / 2.0) * (1.0 + (1.0 / sqrt((1.0 + ((((2.0 * l) / Om) ^ 2.0) * ((sin(kx) ^ 2.0) + (sin(ky) ^ 2.0)))))))));
end
function tmp = code(l, Om, kx, ky)
	tmp = sqrt((0.5 + (0.5 * (sqrt(hypot(1.0, (hypot(sin(ky), sin(kx)) * (2.0 * (l / Om))))) ^ -2.0))));
end
code[l_, Om_, kx_, ky_] := N[Sqrt[N[(N[(1.0 / 2.0), $MachinePrecision] * N[(1.0 + N[(1.0 / N[Sqrt[N[(1.0 + N[(N[Power[N[(N[(2.0 * l), $MachinePrecision] / Om), $MachinePrecision], 2.0], $MachinePrecision] * N[(N[Power[N[Sin[kx], $MachinePrecision], 2.0], $MachinePrecision] + N[Power[N[Sin[ky], $MachinePrecision], 2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
code[l_, Om_, kx_, ky_] := N[Sqrt[N[(0.5 + N[(0.5 * N[Power[N[Sqrt[N[Sqrt[1.0 ^ 2 + N[(N[Sqrt[N[Sin[ky], $MachinePrecision] ^ 2 + N[Sin[kx], $MachinePrecision] ^ 2], $MachinePrecision] * N[(2.0 * N[(l / Om), $MachinePrecision]), $MachinePrecision]), $MachinePrecision] ^ 2], $MachinePrecision]], $MachinePrecision], -2.0], $MachinePrecision]), $MachinePrecision]), $MachinePrecision]], $MachinePrecision]
\sqrt{\frac{1}{2} \cdot \left(1 + \frac{1}{\sqrt{1 + {\left(\frac{2 \cdot \ell}{Om}\right)}^{2} \cdot \left({\sin kx}^{2} + {\sin ky}^{2}\right)}}\right)}
\sqrt{0.5 + 0.5 \cdot {\left(\sqrt{\mathsf{hypot}\left(1, \mathsf{hypot}\left(\sin ky, \sin kx\right) \cdot \left(2 \cdot \frac{\ell}{Om}\right)\right)}\right)}^{-2}}

Error

Try it out

Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 1.0

    \[\sqrt{\frac{1}{2} \cdot \left(1 + \frac{1}{\sqrt{1 + {\left(\frac{2 \cdot \ell}{Om}\right)}^{2} \cdot \left({\sin kx}^{2} + {\sin ky}^{2}\right)}}\right)} \]
  2. Simplified1.0

    \[\leadsto \color{blue}{\sqrt{0.5 + 0.5 \cdot \frac{1}{\sqrt{1 + {\left(\frac{2}{\frac{Om}{\ell}}\right)}^{2} \cdot \left({\sin kx}^{2} + {\sin ky}^{2}\right)}}}} \]
    Proof
    (sqrt.f64 (+.f64 1/2 (*.f64 1/2 (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (/.f64 2 (/.f64 Om l)) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2))))))))): 0 points increase in error, 0 points decrease in error
    (sqrt.f64 (+.f64 (Rewrite<= metadata-eval (*.f64 1/2 1)) (*.f64 1/2 (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (/.f64 2 (/.f64 Om l)) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2))))))))): 0 points increase in error, 0 points decrease in error
    (sqrt.f64 (+.f64 (*.f64 (Rewrite<= metadata-eval (/.f64 1 2)) 1) (*.f64 1/2 (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (/.f64 2 (/.f64 Om l)) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2))))))))): 0 points increase in error, 0 points decrease in error
    (sqrt.f64 (+.f64 (*.f64 (/.f64 1 2) 1) (*.f64 (Rewrite<= metadata-eval (/.f64 1 2)) (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (/.f64 2 (/.f64 Om l)) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2))))))))): 0 points increase in error, 0 points decrease in error
    (sqrt.f64 (+.f64 (*.f64 (/.f64 1 2) 1) (*.f64 (/.f64 1 2) (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (Rewrite<= associate-/l*_binary64 (/.f64 (*.f64 2 l) Om)) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2))))))))): 0 points increase in error, 0 points decrease in error
    (sqrt.f64 (Rewrite<= distribute-lft-in_binary64 (*.f64 (/.f64 1 2) (+.f64 1 (/.f64 1 (sqrt.f64 (+.f64 1 (*.f64 (pow.f64 (/.f64 (*.f64 2 l) Om) 2) (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2)))))))))): 0 points increase in error, 0 points decrease in error
  3. Applied egg-rr0.0

    \[\leadsto \sqrt{0.5 + 0.5 \cdot \color{blue}{\left({\left(\sqrt{\mathsf{hypot}\left(1, \left(2 \cdot \frac{\ell}{Om}\right) \cdot \mathsf{hypot}\left(\sin kx, \sin ky\right)\right)}\right)}^{-1} \cdot {\left(\sqrt{\mathsf{hypot}\left(1, \left(2 \cdot \frac{\ell}{Om}\right) \cdot \mathsf{hypot}\left(\sin kx, \sin ky\right)\right)}\right)}^{-1}\right)}} \]
  4. Simplified0.0

    \[\leadsto \sqrt{0.5 + 0.5 \cdot \color{blue}{{\left(\sqrt{\mathsf{hypot}\left(1, \mathsf{hypot}\left(\sin ky, \sin kx\right) \cdot \left(2 \cdot \frac{\ell}{Om}\right)\right)}\right)}^{-2}}} \]
    Proof
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (hypot.f64 (sin.f64 ky) (sin.f64 kx)) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (Rewrite<= hypot-def_binary64 (sqrt.f64 (+.f64 (*.f64 (sin.f64 ky) (sin.f64 ky)) (*.f64 (sin.f64 kx) (sin.f64 kx))))) (*.f64 2 (/.f64 l Om))))) -2): 1 points increase in error, 6 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (sqrt.f64 (+.f64 (Rewrite<= unpow2_binary64 (pow.f64 (sin.f64 ky) 2)) (*.f64 (sin.f64 kx) (sin.f64 kx)))) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (sqrt.f64 (+.f64 (pow.f64 (sin.f64 ky) 2) (Rewrite<= unpow2_binary64 (pow.f64 (sin.f64 kx) 2)))) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (sqrt.f64 (Rewrite=> +-commutative_binary64 (+.f64 (pow.f64 (sin.f64 kx) 2) (pow.f64 (sin.f64 ky) 2)))) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (sqrt.f64 (+.f64 (Rewrite=> unpow2_binary64 (*.f64 (sin.f64 kx) (sin.f64 kx))) (pow.f64 (sin.f64 ky) 2))) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (sqrt.f64 (+.f64 (*.f64 (sin.f64 kx) (sin.f64 kx)) (Rewrite=> unpow2_binary64 (*.f64 (sin.f64 ky) (sin.f64 ky))))) (*.f64 2 (/.f64 l Om))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (Rewrite=> hypot-def_binary64 (hypot.f64 (sin.f64 kx) (sin.f64 ky))) (*.f64 2 (/.f64 l Om))))) -2): 6 points increase in error, 1 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (Rewrite<= *-commutative_binary64 (*.f64 (*.f64 2 (/.f64 l Om)) (hypot.f64 (sin.f64 kx) (sin.f64 ky)))))) -2): 0 points increase in error, 0 points decrease in error
    (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (*.f64 2 (/.f64 l Om)) (hypot.f64 (sin.f64 kx) (sin.f64 ky))))) (Rewrite<= metadata-eval (*.f64 2 -1))): 0 points increase in error, 0 points decrease in error
    (Rewrite<= pow-sqr_binary64 (*.f64 (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (*.f64 2 (/.f64 l Om)) (hypot.f64 (sin.f64 kx) (sin.f64 ky))))) -1) (pow.f64 (sqrt.f64 (hypot.f64 1 (*.f64 (*.f64 2 (/.f64 l Om)) (hypot.f64 (sin.f64 kx) (sin.f64 ky))))) -1))): 17 points increase in error, 32 points decrease in error
  5. Final simplification0.0

    \[\leadsto \sqrt{0.5 + 0.5 \cdot {\left(\sqrt{\mathsf{hypot}\left(1, \mathsf{hypot}\left(\sin ky, \sin kx\right) \cdot \left(2 \cdot \frac{\ell}{Om}\right)\right)}\right)}^{-2}} \]

Alternatives

Alternative 1
Error1.3
Cost33160
\[\begin{array}{l} t_0 := \frac{2 \cdot \ell}{Om}\\ t_1 := \sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \sin kx \cdot t_0\right)}}\\ \mathbf{if}\;\sin kx \leq -1 \cdot 10^{-169}:\\ \;\;\;\;t_1\\ \mathbf{elif}\;\sin kx \leq 10^{-152}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \sin ky \cdot t_0\right)}}\\ \mathbf{else}:\\ \;\;\;\;t_1\\ \end{array} \]
Alternative 2
Error1.3
Cost33160
\[\begin{array}{l} t_0 := \frac{2 \cdot \ell}{Om}\\ \mathbf{if}\;\sin kx \leq -1 \cdot 10^{-169}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{\sqrt{1 + {\left(2 \cdot \left(\sin kx \cdot \frac{\ell}{Om}\right)\right)}^{2}}}}\\ \mathbf{elif}\;\sin kx \leq 10^{-152}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \sin ky \cdot t_0\right)}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \sin kx \cdot t_0\right)}}\\ \end{array} \]
Alternative 3
Error0.0
Cost32960
\[\sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \mathsf{hypot}\left(\sin ky, \sin kx\right) \cdot \left(2 \cdot \frac{\ell}{Om}\right)\right)}} \]
Alternative 4
Error2.2
Cost20872
\[\begin{array}{l} t_0 := \frac{2 \cdot \ell}{Om}\\ \mathbf{if}\;t_0 \leq -5 \cdot 10^{+15}:\\ \;\;\;\;\sqrt{0.5}\\ \mathbf{elif}\;t_0 \leq 5 \cdot 10^{+69}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{\mathsf{hypot}\left(1, \sin kx \cdot t_0\right)}}\\ \mathbf{else}:\\ \;\;\;\;\sqrt{0.5}\\ \end{array} \]
Alternative 5
Error9.6
Cost13832
\[\begin{array}{l} t_0 := \sqrt{0.5 + \frac{0.5}{\mathsf{hypot}\left(1, 2 \cdot \frac{\ell}{\frac{Om}{kx}}\right)}}\\ \mathbf{if}\;Om \leq -1.5 \cdot 10^{-185}:\\ \;\;\;\;t_0\\ \mathbf{elif}\;Om \leq 10^{-187}:\\ \;\;\;\;\sqrt{0.5}\\ \mathbf{else}:\\ \;\;\;\;t_0\\ \end{array} \]
Alternative 6
Error12.7
Cost8008
\[\begin{array}{l} \mathbf{if}\;Om \leq -5.5 \cdot 10^{+84}:\\ \;\;\;\;1\\ \mathbf{elif}\;Om \leq -1.42 \cdot 10^{-148}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{1 + 2 \cdot \frac{\ell \cdot \ell}{\frac{Om \cdot Om}{kx \cdot kx}}}}\\ \mathbf{elif}\;Om \leq 5 \cdot 10^{-66}:\\ \;\;\;\;\sqrt{0.5}\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
Alternative 7
Error12.5
Cost8008
\[\begin{array}{l} \mathbf{if}\;Om \leq -9.5 \cdot 10^{+82}:\\ \;\;\;\;1\\ \mathbf{elif}\;Om \leq -9 \cdot 10^{-151}:\\ \;\;\;\;\sqrt{0.5 + 0.5 \cdot \frac{1}{1 + 2 \cdot \frac{\left(kx \cdot kx\right) \cdot \left(\ell \cdot \ell\right)}{Om \cdot Om}}}\\ \mathbf{elif}\;Om \leq 4 \cdot 10^{-64}:\\ \;\;\;\;\sqrt{0.5}\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
Alternative 8
Error13.4
Cost6728
\[\begin{array}{l} \mathbf{if}\;Om \leq -1.02 \cdot 10^{-34}:\\ \;\;\;\;1\\ \mathbf{elif}\;Om \leq 1.4 \cdot 10^{-63}:\\ \;\;\;\;\sqrt{0.5}\\ \mathbf{else}:\\ \;\;\;\;1\\ \end{array} \]
Alternative 9
Error28.4
Cost6464
\[\sqrt{0.5} \]

Error

Reproduce

herbie shell --seed 2022330 
(FPCore (l Om kx ky)
  :name "Toniolo and Linder, Equation (3a)"
  :precision binary64
  (sqrt (* (/ 1.0 2.0) (+ 1.0 (/ 1.0 (sqrt (+ 1.0 (* (pow (/ (* 2.0 l) Om) 2.0) (+ (pow (sin kx) 2.0) (pow (sin ky) 2.0))))))))))