Optimal. Leaf size=74 \[ -\frac {\text {Int}\left (\frac {1}{x^2 \tan ^{-1}(a x)},x\right )}{a c^2}+\frac {a x}{c^2 \left (a^2 x^2+1\right ) \tan ^{-1}(a x)}-\frac {\text {Ci}\left (2 \tan ^{-1}(a x)\right )}{c^2}-\frac {1}{a c^2 x \tan ^{-1}(a x)} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.36, antiderivative size = 0, normalized size of antiderivative = 0.00, number of steps used = 0, number of rules used = 0, integrand size = 0, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.000, Rules used = {} \[ \int \frac {1}{x \left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)^2} \, dx \]
Verification is Not applicable to the result.
[In]
[Out]
Rubi steps
\begin {align*} \int \frac {1}{x \left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)^2} \, dx &=-\left (a^2 \int \frac {x}{\left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)^2} \, dx\right )+\frac {\int \frac {1}{x \left (c+a^2 c x^2\right ) \tan ^{-1}(a x)^2} \, dx}{c}\\ &=-\frac {1}{a c^2 x \tan ^{-1}(a x)}+\frac {a x}{c^2 \left (1+a^2 x^2\right ) \tan ^{-1}(a x)}-a \int \frac {1}{\left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)} \, dx+a^3 \int \frac {x^2}{\left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)} \, dx-\frac {\int \frac {1}{x^2 \tan ^{-1}(a x)} \, dx}{a c^2}\\ &=-\frac {1}{a c^2 x \tan ^{-1}(a x)}+\frac {a x}{c^2 \left (1+a^2 x^2\right ) \tan ^{-1}(a x)}-\frac {\operatorname {Subst}\left (\int \frac {\cos ^2(x)}{x} \, dx,x,\tan ^{-1}(a x)\right )}{c^2}+\frac {\operatorname {Subst}\left (\int \frac {\sin ^2(x)}{x} \, dx,x,\tan ^{-1}(a x)\right )}{c^2}-\frac {\int \frac {1}{x^2 \tan ^{-1}(a x)} \, dx}{a c^2}\\ &=-\frac {1}{a c^2 x \tan ^{-1}(a x)}+\frac {a x}{c^2 \left (1+a^2 x^2\right ) \tan ^{-1}(a x)}+\frac {\operatorname {Subst}\left (\int \left (\frac {1}{2 x}-\frac {\cos (2 x)}{2 x}\right ) \, dx,x,\tan ^{-1}(a x)\right )}{c^2}-\frac {\operatorname {Subst}\left (\int \left (\frac {1}{2 x}+\frac {\cos (2 x)}{2 x}\right ) \, dx,x,\tan ^{-1}(a x)\right )}{c^2}-\frac {\int \frac {1}{x^2 \tan ^{-1}(a x)} \, dx}{a c^2}\\ &=-\frac {1}{a c^2 x \tan ^{-1}(a x)}+\frac {a x}{c^2 \left (1+a^2 x^2\right ) \tan ^{-1}(a x)}-2 \frac {\operatorname {Subst}\left (\int \frac {\cos (2 x)}{x} \, dx,x,\tan ^{-1}(a x)\right )}{2 c^2}-\frac {\int \frac {1}{x^2 \tan ^{-1}(a x)} \, dx}{a c^2}\\ &=-\frac {1}{a c^2 x \tan ^{-1}(a x)}+\frac {a x}{c^2 \left (1+a^2 x^2\right ) \tan ^{-1}(a x)}-\frac {\text {Ci}\left (2 \tan ^{-1}(a x)\right )}{c^2}-\frac {\int \frac {1}{x^2 \tan ^{-1}(a x)} \, dx}{a c^2}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A] time = 1.67, size = 0, normalized size = 0.00 \[ \int \frac {1}{x \left (c+a^2 c x^2\right )^2 \tan ^{-1}(a x)^2} \, dx \]
Verification is Not applicable to the result.
[In]
[Out]
________________________________________________________________________________________
fricas [A] time = 0.43, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\frac {1}{{\left (a^{4} c^{2} x^{5} + 2 \, a^{2} c^{2} x^{3} + c^{2} x\right )} \arctan \left (a x\right )^{2}}, x\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
giac [A] time = 0.00, size = 0, normalized size = 0.00 \[ \mathit {sage}_{0} x \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maple [A] time = 0.89, size = 0, normalized size = 0.00 \[ \int \frac {1}{x \left (a^{2} c \,x^{2}+c \right )^{2} \arctan \left (a x \right )^{2}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maxima [A] time = 0.00, size = 0, normalized size = 0.00 \[ -\frac {{\left (a^{3} c^{2} x^{3} + a c^{2} x\right )} \mathit {sage}_{0} x \arctan \left (a x\right ) + 1}{{\left (a^{3} c^{2} x^{3} + a c^{2} x\right )} \arctan \left (a x\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
mupad [A] time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {1}{x\,{\mathrm {atan}\left (a\,x\right )}^2\,{\left (c\,a^2\,x^2+c\right )}^2} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
sympy [A] time = 0.00, size = 0, normalized size = 0.00 \[ \frac {\int \frac {1}{a^{4} x^{5} \operatorname {atan}^{2}{\left (a x \right )} + 2 a^{2} x^{3} \operatorname {atan}^{2}{\left (a x \right )} + x \operatorname {atan}^{2}{\left (a x \right )}}\, dx}{c^{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________