Optimal. Leaf size=60 \[ -\frac {\text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{4 b^3}+\frac {a^2 \text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{b^3}+\frac {\text {Chi}\left (3 \sinh ^{-1}(a+b x)\right )}{4 b^3}-\frac {a \text {Shi}\left (2 \sinh ^{-1}(a+b x)\right )}{b^3} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.38, antiderivative size = 60, normalized size of antiderivative = 1.00, number of steps
used = 14, number of rules used = 8, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.667, Rules used = {5859, 5830,
6873, 12, 6874, 3382, 5556, 3379} \begin {gather*} \frac {a^2 \text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{b^3}-\frac {\text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{4 b^3}+\frac {\text {Chi}\left (3 \sinh ^{-1}(a+b x)\right )}{4 b^3}-\frac {a \text {Shi}\left (2 \sinh ^{-1}(a+b x)\right )}{b^3} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 12
Rule 3379
Rule 3382
Rule 5556
Rule 5830
Rule 5859
Rule 6873
Rule 6874
Rubi steps
\begin {align*} \int \frac {x^2}{\sinh ^{-1}(a+b x)} \, dx &=\frac {\text {Subst}\left (\int \frac {\left (-\frac {a}{b}+\frac {x}{b}\right )^2}{\sinh ^{-1}(x)} \, dx,x,a+b x\right )}{b}\\ &=\frac {\text {Subst}\left (\int \frac {\cosh (x) \left (-\frac {a}{b}+\frac {\sinh (x)}{b}\right )^2}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b}\\ &=\frac {\text {Subst}\left (\int \frac {\cosh (x) (a-\sinh (x))^2}{b^2 x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b}\\ &=\frac {\text {Subst}\left (\int \frac {\cosh (x) (a-\sinh (x))^2}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}\\ &=\frac {\text {Subst}\left (\int \left (\frac {a^2 \cosh (x)}{x}-\frac {2 a \cosh (x) \sinh (x)}{x}+\frac {\cosh (x) \sinh ^2(x)}{x}\right ) \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}\\ &=\frac {\text {Subst}\left (\int \frac {\cosh (x) \sinh ^2(x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}-\frac {(2 a) \text {Subst}\left (\int \frac {\cosh (x) \sinh (x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}+\frac {a^2 \text {Subst}\left (\int \frac {\cosh (x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}\\ &=\frac {a^2 \text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{b^3}+\frac {\text {Subst}\left (\int \left (-\frac {\cosh (x)}{4 x}+\frac {\cosh (3 x)}{4 x}\right ) \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}-\frac {(2 a) \text {Subst}\left (\int \frac {\sinh (2 x)}{2 x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}\\ &=\frac {a^2 \text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{b^3}-\frac {\text {Subst}\left (\int \frac {\cosh (x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{4 b^3}+\frac {\text {Subst}\left (\int \frac {\cosh (3 x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{4 b^3}-\frac {a \text {Subst}\left (\int \frac {\sinh (2 x)}{x} \, dx,x,\sinh ^{-1}(a+b x)\right )}{b^3}\\ &=-\frac {\text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{4 b^3}+\frac {a^2 \text {Chi}\left (\sinh ^{-1}(a+b x)\right )}{b^3}+\frac {\text {Chi}\left (3 \sinh ^{-1}(a+b x)\right )}{4 b^3}-\frac {a \text {Shi}\left (2 \sinh ^{-1}(a+b x)\right )}{b^3}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.09, size = 44, normalized size = 0.73 \begin {gather*} \frac {\left (-1+4 a^2\right ) \text {Chi}\left (\sinh ^{-1}(a+b x)\right )+\text {Chi}\left (3 \sinh ^{-1}(a+b x)\right )-4 a \text {Shi}\left (2 \sinh ^{-1}(a+b x)\right )}{4 b^3} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [A]
time = 3.25, size = 49, normalized size = 0.82
method | result | size |
derivativedivides | \(\frac {a^{2} \hyperbolicCosineIntegral \left (\arcsinh \left (b x +a \right )\right )-a \hyperbolicSineIntegral \left (2 \arcsinh \left (b x +a \right )\right )-\frac {\hyperbolicCosineIntegral \left (\arcsinh \left (b x +a \right )\right )}{4}+\frac {\hyperbolicCosineIntegral \left (3 \arcsinh \left (b x +a \right )\right )}{4}}{b^{3}}\) | \(49\) |
default | \(\frac {a^{2} \hyperbolicCosineIntegral \left (\arcsinh \left (b x +a \right )\right )-a \hyperbolicSineIntegral \left (2 \arcsinh \left (b x +a \right )\right )-\frac {\hyperbolicCosineIntegral \left (\arcsinh \left (b x +a \right )\right )}{4}+\frac {\hyperbolicCosineIntegral \left (3 \arcsinh \left (b x +a \right )\right )}{4}}{b^{3}}\) | \(49\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {x^{2}}{\operatorname {asinh}{\left (a + b x \right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [F]
time = 0.00, size = -1, normalized size = -0.02 \begin {gather*} \int \frac {x^2}{\mathrm {asinh}\left (a+b\,x\right )} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________