3.9.20 \(\int \frac {1}{\coth ^2(x)+\text {csch}^2(x)} \, dx\) [820]

Optimal. Leaf size=18 \[ x-\sqrt {2} \tanh ^{-1}\left (\frac {\tanh (x)}{\sqrt {2}}\right ) \]

[Out]

x-arctanh(1/2*2^(1/2)*tanh(x))*2^(1/2)

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Rubi [A]
time = 0.02, antiderivative size = 18, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 2, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {1144, 213} \begin {gather*} x-\sqrt {2} \tanh ^{-1}\left (\frac {\tanh (x)}{\sqrt {2}}\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(Coth[x]^2 + Csch[x]^2)^(-1),x]

[Out]

x - Sqrt[2]*ArcTanh[Tanh[x]/Sqrt[2]]

Rule 213

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(-(Rt[-a, 2]*Rt[b, 2])^(-1))*ArcTanh[Rt[b, 2]*(x/Rt[-a, 2])]
, x] /; FreeQ[{a, b}, x] && NegQ[a/b] && (LtQ[a, 0] || GtQ[b, 0])

Rule 1144

Int[((d_.)*(x_))^(m_)/((a_) + (b_.)*(x_)^2 + (c_.)*(x_)^4), x_Symbol] :> With[{q = Rt[b^2 - 4*a*c, 2]}, Dist[(
d^2/2)*(b/q + 1), Int[(d*x)^(m - 2)/(b/2 + q/2 + c*x^2), x], x] - Dist[(d^2/2)*(b/q - 1), Int[(d*x)^(m - 2)/(b
/2 - q/2 + c*x^2), x], x]] /; FreeQ[{a, b, c, d}, x] && NeQ[b^2 - 4*a*c, 0] && GeQ[m, 2]

Rubi steps

\begin {align*} \int \frac {1}{\coth ^2(x)+\text {csch}^2(x)} \, dx &=\text {Subst}\left (\int \frac {x^2}{2-3 x^2+x^4} \, dx,x,\tanh (x)\right )\\ &=2 \text {Subst}\left (\int \frac {1}{-2+x^2} \, dx,x,\tanh (x)\right )-\text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,\tanh (x)\right )\\ &=x-\sqrt {2} \tanh ^{-1}\left (\frac {\tanh (x)}{\sqrt {2}}\right )\\ \end {align*}

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Mathematica [A]
time = 0.03, size = 18, normalized size = 1.00 \begin {gather*} x-\sqrt {2} \tanh ^{-1}\left (\frac {\tanh (x)}{\sqrt {2}}\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(Coth[x]^2 + Csch[x]^2)^(-1),x]

[Out]

x - Sqrt[2]*ArcTanh[Tanh[x]/Sqrt[2]]

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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(155\) vs. \(2(15)=30\).
time = 1.16, size = 156, normalized size = 8.67

method	result	size
risch	\(x +\frac {\sqrt {2}\, \ln \left ({\mathrm e}^{2 x}+3+2 \sqrt {2}\right )}{2}-\frac {\sqrt {2}\, \ln \left ({\mathrm e}^{2 x}+3-2 \sqrt {2}\right )}{2}\)	\(37\)
default	\(\ln \left (\tanh \left (\frac {x}{2}\right )+1\right )-\frac {\sqrt {2}\, \left (\ln \left (\frac {\tanh ^{2}\left (\frac {x}{2}\right )+\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1}{\tanh ^{2}\left (\frac {x}{2}\right )-\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1}\right )+2 \arctan \left (\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1\right )+2 \arctan \left (\tanh \left (\frac {x}{2}\right ) \sqrt {2}-1\right )\right )}{4}+\frac {\sqrt {2}\, \left (\ln \left (\frac {\tanh ^{2}\left (\frac {x}{2}\right )-\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1}{\tanh ^{2}\left (\frac {x}{2}\right )+\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1}\right )+2 \arctan \left (\tanh \left (\frac {x}{2}\right ) \sqrt {2}+1\right )+2 \arctan \left (\tanh \left (\frac {x}{2}\right ) \sqrt {2}-1\right )\right )}{4}-\ln \left (\tanh \left (\frac {x}{2}\right )-1\right )\)	\(156\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(coth(x)^2+csch(x)^2),x,method=_RETURNVERBOSE)

[Out]

ln(tanh(1/2*x)+1)-1/4*2^(1/2)*(ln((tanh(1/2*x)^2+tanh(1/2*x)*2^(1/2)+1)/(tanh(1/2*x)^2-tanh(1/2*x)*2^(1/2)+1))
+2*arctan(tanh(1/2*x)*2^(1/2)+1)+2*arctan(tanh(1/2*x)*2^(1/2)-1))+1/4*2^(1/2)*(ln((tanh(1/2*x)^2-tanh(1/2*x)*2
^(1/2)+1)/(tanh(1/2*x)^2+tanh(1/2*x)*2^(1/2)+1))+2*arctan(tanh(1/2*x)*2^(1/2)+1)+2*arctan(tanh(1/2*x)*2^(1/2)-
1))-ln(tanh(1/2*x)-1)

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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 36 vs. \(2 (15) = 30\).
time = 0.49, size = 36, normalized size = 2.00 \begin {gather*} \frac {1}{2} \, \sqrt {2} \log \left (-\frac {2 \, \sqrt {2} - e^{\left (-2 \, x\right )} - 3}{2 \, \sqrt {2} + e^{\left (-2 \, x\right )} + 3}\right ) + x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(coth(x)^2+csch(x)^2),x, algorithm="maxima")

[Out]

1/2*sqrt(2)*log(-(2*sqrt(2) - e^(-2*x) - 3)/(2*sqrt(2) + e^(-2*x) + 3)) + x

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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 67 vs. \(2 (15) = 30\).
time = 0.39, size = 67, normalized size = 3.72 \begin {gather*} \frac {1}{2} \, \sqrt {2} \log \left (\frac {3 \, {\left (2 \, \sqrt {2} + 3\right )} \cosh \left (x\right )^{2} - 4 \, {\left (3 \, \sqrt {2} + 4\right )} \cosh \left (x\right ) \sinh \left (x\right ) + 3 \, {\left (2 \, \sqrt {2} + 3\right )} \sinh \left (x\right )^{2} + 2 \, \sqrt {2} + 3}{\cosh \left (x\right )^{2} + \sinh \left (x\right )^{2} + 3}\right ) + x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(coth(x)^2+csch(x)^2),x, algorithm="fricas")

[Out]

1/2*sqrt(2)*log((3*(2*sqrt(2) + 3)*cosh(x)^2 - 4*(3*sqrt(2) + 4)*cosh(x)*sinh(x) + 3*(2*sqrt(2) + 3)*sinh(x)^2
+ 2*sqrt(2) + 3)/(cosh(x)^2 + sinh(x)^2 + 3)) + x

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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{\coth ^{2}{\left (x \right )} + \operatorname {csch}^{2}{\left (x \right )}}\, dx \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(coth(x)**2+csch(x)**2),x)

[Out]

Integral(1/(coth(x)**2 + csch(x)**2), x)

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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 36 vs. \(2 (15) = 30\).
time = 0.39, size = 36, normalized size = 2.00 \begin {gather*} -\frac {1}{2} \, \sqrt {2} \log \left (-\frac {2 \, \sqrt {2} - e^{\left (2 \, x\right )} - 3}{2 \, \sqrt {2} + e^{\left (2 \, x\right )} + 3}\right ) + x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(coth(x)^2+csch(x)^2),x, algorithm="giac")

[Out]

-1/2*sqrt(2)*log(-(2*sqrt(2) - e^(2*x) - 3)/(2*sqrt(2) + e^(2*x) + 3)) + x

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Mupad [B]
time = 0.15, size = 54, normalized size = 3.00 \begin {gather*} x+\frac {\sqrt {2}\,\ln \left (8\,{\mathrm {e}}^{2\,x}-\frac {\sqrt {2}\,\left (12\,{\mathrm {e}}^{2\,x}+4\right )}{2}\right )}{2}-\frac {\sqrt {2}\,\ln \left (8\,{\mathrm {e}}^{2\,x}+\frac {\sqrt {2}\,\left (12\,{\mathrm {e}}^{2\,x}+4\right )}{2}\right )}{2} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(coth(x)^2 + 1/sinh(x)^2),x)

[Out]

x + (2^(1/2)*log(8*exp(2*x) - (2^(1/2)*(12*exp(2*x) + 4))/2))/2 - (2^(1/2)*log(8*exp(2*x) + (2^(1/2)*(12*exp(2
*x) + 4))/2))/2

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