Integrand size = 12, antiderivative size = 78 \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^3 \cosh (a) \text {Chi}\left (\frac {b}{x}\right )+\frac {1}{6} b^2 x \sinh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^3 \sinh (a) \text {Shi}\left (\frac {b}{x}\right ) \]
[Out]
Time = 0.10 (sec) , antiderivative size = 78, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.417, Rules used = {5428, 3378, 3384, 3379, 3382} \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=-\frac {1}{6} b^3 \cosh (a) \text {Chi}\left (\frac {b}{x}\right )-\frac {1}{6} b^3 \sinh (a) \text {Shi}\left (\frac {b}{x}\right )+\frac {1}{6} b^2 x \sinh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )+\frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right ) \]
[In]
[Out]
Rule 3378
Rule 3379
Rule 3382
Rule 3384
Rule 5428
Rubi steps \begin{align*} \text {integral}& = -\text {Subst}\left (\int \frac {\sinh (a+b x)}{x^4} \, dx,x,\frac {1}{x}\right ) \\ & = \frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{3} b \text {Subst}\left (\int \frac {\cosh (a+b x)}{x^3} \, dx,x,\frac {1}{x}\right ) \\ & = \frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^2 \text {Subst}\left (\int \frac {\sinh (a+b x)}{x^2} \, dx,x,\frac {1}{x}\right ) \\ & = \frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right )+\frac {1}{6} b^2 x \sinh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^3 \text {Subst}\left (\int \frac {\cosh (a+b x)}{x} \, dx,x,\frac {1}{x}\right ) \\ & = \frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right )+\frac {1}{6} b^2 x \sinh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{6} \left (b^3 \cosh (a)\right ) \text {Subst}\left (\int \frac {\cosh (b x)}{x} \, dx,x,\frac {1}{x}\right )-\frac {1}{6} \left (b^3 \sinh (a)\right ) \text {Subst}\left (\int \frac {\sinh (b x)}{x} \, dx,x,\frac {1}{x}\right ) \\ & = \frac {1}{6} b x^2 \cosh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^3 \cosh (a) \text {Chi}\left (\frac {b}{x}\right )+\frac {1}{6} b^2 x \sinh \left (a+\frac {b}{x}\right )+\frac {1}{3} x^3 \sinh \left (a+\frac {b}{x}\right )-\frac {1}{6} b^3 \sinh (a) \text {Shi}\left (\frac {b}{x}\right ) \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.90 \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\frac {1}{6} \left (-b^3 \cosh (a) \text {Chi}\left (\frac {b}{x}\right )+x \left (b x \cosh \left (a+\frac {b}{x}\right )+b^2 \sinh \left (a+\frac {b}{x}\right )+2 x^2 \sinh \left (a+\frac {b}{x}\right )\right )-b^3 \sinh (a) \text {Shi}\left (\frac {b}{x}\right )\right ) \]
[In]
[Out]
Time = 1.07 (sec) , antiderivative size = 130, normalized size of antiderivative = 1.67
method | result | size |
risch | \(\frac {{\mathrm e}^{-a} \operatorname {Ei}_{1}\left (\frac {b}{x}\right ) b^{3}}{12}-\frac {{\mathrm e}^{-\frac {a x +b}{x}} b^{2} x}{12}+\frac {{\mathrm e}^{-\frac {a x +b}{x}} b \,x^{2}}{12}-\frac {{\mathrm e}^{-\frac {a x +b}{x}} x^{3}}{6}+\frac {{\mathrm e}^{a} \operatorname {Ei}_{1}\left (-\frac {b}{x}\right ) b^{3}}{12}+\frac {{\mathrm e}^{\frac {a x +b}{x}} x \,b^{2}}{12}+\frac {{\mathrm e}^{\frac {a x +b}{x}} x^{2} b}{12}+\frac {{\mathrm e}^{\frac {a x +b}{x}} x^{3}}{6}\) | \(130\) |
meijerg | \(\frac {b^{3} \sqrt {\pi }\, \cosh \left (a \right ) \left (-\frac {8 x^{2} \left (\frac {55 b^{2}}{2 x^{2}}+45\right )}{45 \sqrt {\pi }\, b^{2}}+\frac {8 x^{2} \cosh \left (\frac {b}{x}\right )}{3 \sqrt {\pi }\, b^{2}}+\frac {16 x^{3} \left (\frac {5 b^{2}}{2 x^{2}}+5\right ) \sinh \left (\frac {b}{x}\right )}{15 \sqrt {\pi }\, b^{3}}-\frac {8 \left (\operatorname {Chi}\left (\frac {b}{x}\right )-\ln \left (\frac {b}{x}\right )-\gamma \right )}{3 \sqrt {\pi }}-\frac {4 \left (2 \gamma -\frac {11}{3}-2 \ln \left (x \right )+2 \ln \left (i b \right )\right )}{3 \sqrt {\pi }}+\frac {8 x^{2}}{\sqrt {\pi }\, b^{2}}\right )}{16}+\frac {i b^{3} \sqrt {\pi }\, \sinh \left (a \right ) \left (-\frac {8 i \left (\frac {b^{2}}{x^{2}}+2\right ) x^{3} \cosh \left (\frac {b}{x}\right )}{3 b^{3} \sqrt {\pi }}-\frac {8 i x^{2} \sinh \left (\frac {b}{x}\right )}{3 b^{2} \sqrt {\pi }}+\frac {8 i \operatorname {Shi}\left (\frac {b}{x}\right )}{3 \sqrt {\pi }}\right )}{16}\) | \(202\) |
[In]
[Out]
none
Time = 0.24 (sec) , antiderivative size = 93, normalized size of antiderivative = 1.19 \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\frac {1}{6} \, b x^{2} \cosh \left (\frac {a x + b}{x}\right ) - \frac {1}{12} \, {\left (b^{3} {\rm Ei}\left (\frac {b}{x}\right ) + b^{3} {\rm Ei}\left (-\frac {b}{x}\right )\right )} \cosh \left (a\right ) - \frac {1}{12} \, {\left (b^{3} {\rm Ei}\left (\frac {b}{x}\right ) - b^{3} {\rm Ei}\left (-\frac {b}{x}\right )\right )} \sinh \left (a\right ) + \frac {1}{6} \, {\left (b^{2} x + 2 \, x^{3}\right )} \sinh \left (\frac {a x + b}{x}\right ) \]
[In]
[Out]
\[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\int x^{2} \sinh {\left (a + \frac {b}{x} \right )}\, dx \]
[In]
[Out]
none
Time = 0.23 (sec) , antiderivative size = 47, normalized size of antiderivative = 0.60 \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\frac {1}{3} \, x^{3} \sinh \left (a + \frac {b}{x}\right ) + \frac {1}{6} \, {\left (b^{2} e^{\left (-a\right )} \Gamma \left (-2, \frac {b}{x}\right ) + b^{2} e^{a} \Gamma \left (-2, -\frac {b}{x}\right )\right )} b \]
[In]
[Out]
Leaf count of result is larger than twice the leaf count of optimal. 534 vs. \(2 (68) = 136\).
Time = 0.26 (sec) , antiderivative size = 534, normalized size of antiderivative = 6.85 \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=-\frac {a^{3} b^{4} {\rm Ei}\left (a - \frac {a x + b}{x}\right ) e^{\left (-a\right )} + a^{3} b^{4} {\rm Ei}\left (-a + \frac {a x + b}{x}\right ) e^{a} - \frac {3 \, {\left (a x + b\right )} a^{2} b^{4} {\rm Ei}\left (a - \frac {a x + b}{x}\right ) e^{\left (-a\right )}}{x} - \frac {3 \, {\left (a x + b\right )} a^{2} b^{4} {\rm Ei}\left (-a + \frac {a x + b}{x}\right ) e^{a}}{x} + \frac {3 \, {\left (a x + b\right )}^{2} a b^{4} {\rm Ei}\left (a - \frac {a x + b}{x}\right ) e^{\left (-a\right )}}{x^{2}} + \frac {3 \, {\left (a x + b\right )}^{2} a b^{4} {\rm Ei}\left (-a + \frac {a x + b}{x}\right ) e^{a}}{x^{2}} + a^{2} b^{4} e^{\left (\frac {a x + b}{x}\right )} - a^{2} b^{4} e^{\left (-\frac {a x + b}{x}\right )} - \frac {{\left (a x + b\right )}^{3} b^{4} {\rm Ei}\left (a - \frac {a x + b}{x}\right ) e^{\left (-a\right )}}{x^{3}} - \frac {{\left (a x + b\right )}^{3} b^{4} {\rm Ei}\left (-a + \frac {a x + b}{x}\right ) e^{a}}{x^{3}} - a b^{4} e^{\left (\frac {a x + b}{x}\right )} - \frac {2 \, {\left (a x + b\right )} a b^{4} e^{\left (\frac {a x + b}{x}\right )}}{x} - a b^{4} e^{\left (-\frac {a x + b}{x}\right )} + \frac {2 \, {\left (a x + b\right )} a b^{4} e^{\left (-\frac {a x + b}{x}\right )}}{x} + 2 \, b^{4} e^{\left (\frac {a x + b}{x}\right )} + \frac {{\left (a x + b\right )}^{2} b^{4} e^{\left (\frac {a x + b}{x}\right )}}{x^{2}} + \frac {{\left (a x + b\right )} b^{4} e^{\left (\frac {a x + b}{x}\right )}}{x} - 2 \, b^{4} e^{\left (-\frac {a x + b}{x}\right )} - \frac {{\left (a x + b\right )}^{2} b^{4} e^{\left (-\frac {a x + b}{x}\right )}}{x^{2}} + \frac {{\left (a x + b\right )} b^{4} e^{\left (-\frac {a x + b}{x}\right )}}{x}}{12 \, {\left (a^{3} - \frac {3 \, {\left (a x + b\right )} a^{2}}{x} + \frac {3 \, {\left (a x + b\right )}^{2} a}{x^{2}} - \frac {{\left (a x + b\right )}^{3}}{x^{3}}\right )} b} \]
[In]
[Out]
Timed out. \[ \int x^2 \sinh \left (a+\frac {b}{x}\right ) \, dx=\int x^2\,\mathrm {sinh}\left (a+\frac {b}{x}\right ) \,d x \]
[In]
[Out]