\(\int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx\) [137]

Optimal result

Integrand size = 11, antiderivative size = 60 \[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\frac {x}{2 \sqrt {\text {csch}(2 \log (c x))}}+\frac {\csc ^{-1}\left (c^2 x^2\right )}{2 c^2 \sqrt {1-\frac {1}{c^4 x^4}} x \sqrt {\text {csch}(2 \log (c x))}} \] Output:

1/2*x/csch(2*ln(c*x))^(1/2)+1/2*arccsc(c^2*x^2)/c^2/(1-1/c^4/x^4)^(1/2)/x/ 
csch(2*ln(c*x))^(1/2)
                                                                                    
                                                                                    
 

Mathematica [A] (verified)

Time = 0.08 (sec) , antiderivative size = 75, normalized size of antiderivative = 1.25 \[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\frac {x \left (\sqrt {-1+c^4 x^4}-\arctan \left (\sqrt {-1+c^4 x^4}\right )\right )}{2 \sqrt {2} \sqrt {\frac {c^2 x^2}{-1+c^4 x^4}} \sqrt {-1+c^4 x^4}} \] Input:

Integrate[1/Sqrt[Csch[2*Log[c*x]]],x]
 

Output:

(x*(Sqrt[-1 + c^4*x^4] - ArcTan[Sqrt[-1 + c^4*x^4]]))/(2*Sqrt[2]*Sqrt[(c^2 
*x^2)/(-1 + c^4*x^4)]*Sqrt[-1 + c^4*x^4])
 

Rubi [A] (warning: unable to verify)

Time = 0.28 (sec) , antiderivative size = 68, normalized size of antiderivative = 1.13, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.545, Rules used = {6080, 6078, 858, 807, 247, 223}

Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.

\(\displaystyle \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx\)

\(\Big \downarrow \) 6080

\(\displaystyle \frac {\int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}}d(c x)}{c}\)

\(\Big \downarrow \) 6078

\(\displaystyle \frac {\int c \sqrt {1-\frac {1}{c^4 x^4}} xd(c x)}{c^2 x \sqrt {1-\frac {1}{c^4 x^4}} \sqrt {\text {csch}(2 \log (c x))}}\)

\(\Big \downarrow \) 858

\(\displaystyle -\frac {\int \frac {\sqrt {1-c^4 x^4}}{c^3 x^3}d\frac {1}{c x}}{c^2 x \sqrt {1-\frac {1}{c^4 x^4}} \sqrt {\text {csch}(2 \log (c x))}}\)

\(\Big \downarrow \) 807

\(\displaystyle -\frac {\int \frac {\sqrt {1-c^2 x^2}}{c^2 x^2}d\left (c^2 x^2\right )}{2 c^2 x \sqrt {1-\frac {1}{c^4 x^4}} \sqrt {\text {csch}(2 \log (c x))}}\)

\(\Big \downarrow \) 247

\(\displaystyle -\frac {-\int \frac {1}{\sqrt {1-c^2 x^2}}d\left (c^2 x^2\right )-c^2 x^2 \sqrt {1-c^2 x^2}}{2 c^2 x \sqrt {1-\frac {1}{c^4 x^4}} \sqrt {\text {csch}(2 \log (c x))}}\)

\(\Big \downarrow \) 223

\(\displaystyle -\frac {-\arcsin \left (c^2 x^2\right )-c^2 x^2 \sqrt {1-c^2 x^2}}{2 c^2 x \sqrt {1-\frac {1}{c^4 x^4}} \sqrt {\text {csch}(2 \log (c x))}}\)

Input:

Int[1/Sqrt[Csch[2*Log[c*x]]],x]
 

Output:

-1/2*(-(c^2*x^2*Sqrt[1 - c^2*x^2]) - ArcSin[c^2*x^2])/(c^2*Sqrt[1 - 1/(c^4 
*x^4)]*x*Sqrt[Csch[2*Log[c*x]]])
 

Defintions of rubi rules used

rule 223

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

rule 247

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbol] :> Simp[(c*x)^ 
(m + 1)*((a + b*x^2)^p/(c*(m + 1))), x] - Simp[2*b*(p/(c^2*(m + 1)))   Int[ 
(c*x)^(m + 2)*(a + b*x^2)^(p - 1), x], x] /; FreeQ[{a, b, c}, x] && GtQ[p, 
0] && LtQ[m, -1] &&  !ILtQ[(m + 2*p + 3)/2, 0] && IntBinomialQ[a, b, c, 2, 
m, p, x]
 

rule 807

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> With[{k = GCD[m 
+ 1, n]}, Simp[1/k   Subst[Int[x^((m + 1)/k - 1)*(a + b*x^(n/k))^p, x], x, 
x^k], x] /; k != 1] /; FreeQ[{a, b, p}, x] && IGtQ[n, 0] && IntegerQ[m]
 

rule 858

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> -Subst[Int[(a + 
b/x^n)^p/x^(m + 2), x], x, 1/x] /; FreeQ[{a, b, p}, x] && ILtQ[n, 0] && Int 
egerQ[m]
 

rule 6078

Int[Csch[((a_.) + Log[x_]*(b_.))*(d_.)]^(p_.), x_Symbol] :> Simp[Csch[d*(a 
+ b*Log[x])]^p*((1 - 1/(E^(2*a*d)*x^(2*b*d)))^p/x^((-b)*d*p))   Int[1/(x^(b 
*d*p)*(1 - 1/(E^(2*a*d)*x^(2*b*d)))^p), x], x] /; FreeQ[{a, b, d, p}, x] && 
  !IntegerQ[p]
 

rule 6080

Int[Csch[((a_.) + Log[(c_.)*(x_)^(n_.)]*(b_.))*(d_.)]^(p_.), x_Symbol] :> S 
imp[x/(n*(c*x^n)^(1/n))   Subst[Int[x^(1/n - 1)*Csch[d*(a + b*Log[x])]^p, x 
], x, c*x^n], x] /; FreeQ[{a, b, c, d, n, p}, x] && (NeQ[c, 1] || NeQ[n, 1] 
)
 

Maple [F]

\[\int \frac {1}{\sqrt {\operatorname {csch}\left (2 \ln \left (x c \right )\right )}}d x\]

Input:

int(1/csch(2*ln(x*c))^(1/2),x)
 

Output:

int(1/csch(2*ln(x*c))^(1/2),x)
 

Fricas [A] (verification not implemented)

Time = 0.11 (sec) , antiderivative size = 86, normalized size of antiderivative = 1.43 \[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=-\frac {\sqrt {2} c x \arctan \left (\frac {{\left (c^{4} x^{4} - 1\right )} \sqrt {\frac {c^{2} x^{2}}{c^{4} x^{4} - 1}}}{c x}\right ) - \sqrt {2} {\left (c^{4} x^{4} - 1\right )} \sqrt {\frac {c^{2} x^{2}}{c^{4} x^{4} - 1}}}{4 \, c^{2} x} \] Input:

integrate(1/csch(2*log(c*x))^(1/2),x, algorithm="fricas")
 

Output:

-1/4*(sqrt(2)*c*x*arctan((c^4*x^4 - 1)*sqrt(c^2*x^2/(c^4*x^4 - 1))/(c*x)) 
- sqrt(2)*(c^4*x^4 - 1)*sqrt(c^2*x^2/(c^4*x^4 - 1)))/(c^2*x)
 

Sympy [F]

\[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\int \frac {1}{\sqrt {\operatorname {csch}{\left (2 \log {\left (c x \right )} \right )}}}\, dx \] Input:

integrate(1/csch(2*ln(c*x))**(1/2),x)
 

Output:

Integral(1/sqrt(csch(2*log(c*x))), x)
 

Maxima [F]

\[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\int { \frac {1}{\sqrt {\operatorname {csch}\left (2 \, \log \left (c x\right )\right )}} \,d x } \] Input:

integrate(1/csch(2*log(c*x))^(1/2),x, algorithm="maxima")
 

Output:

integrate(1/sqrt(csch(2*log(c*x))), x)
 

Giac [F(-1)]

Timed out. \[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\text {Timed out} \] Input:

integrate(1/csch(2*log(c*x))^(1/2),x, algorithm="giac")
 

Output:

Timed out
 

Mupad [F(-1)]

Timed out. \[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\int \frac {1}{\sqrt {\frac {1}{\mathrm {sinh}\left (2\,\ln \left (c\,x\right )\right )}}} \,d x \] Input:

int(1/(1/sinh(2*log(c*x)))^(1/2),x)
 

Output:

int(1/(1/sinh(2*log(c*x)))^(1/2), x)
 

Reduce [F]

\[ \int \frac {1}{\sqrt {\text {csch}(2 \log (c x))}} \, dx=\int \frac {\sqrt {\mathrm {csch}\left (2 \,\mathrm {log}\left (c x \right )\right )}}{\mathrm {csch}\left (2 \,\mathrm {log}\left (c x \right )\right )}d x \] Input:

int(1/csch(2*log(c*x))^(1/2),x)
                                                                                    
                                                                                    
 

Output:

int(sqrt(csch(2*log(c*x)))/csch(2*log(c*x)),x)