Optimal. Leaf size=101 \[ \frac {x^3 (1+a x)}{a^2 c \sqrt {1-a^2 x^2}}+\frac {4 x^2 \sqrt {1-a^2 x^2}}{3 a^3 c}+\frac {(16+9 a x) \sqrt {1-a^2 x^2}}{6 a^5 c}-\frac {3 \text {ArcSin}(a x)}{2 a^5 c} \]
[Out]
________________________________________________________________________________________
Rubi [A]
time = 0.10, antiderivative size = 101, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 23, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.217, Rules used = {6283, 833, 847,
794, 222} \begin {gather*} -\frac {3 \text {ArcSin}(a x)}{2 a^5 c}+\frac {x^3 (a x+1)}{a^2 c \sqrt {1-a^2 x^2}}+\frac {(9 a x+16) \sqrt {1-a^2 x^2}}{6 a^5 c}+\frac {4 x^2 \sqrt {1-a^2 x^2}}{3 a^3 c} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
Rule 222
Rule 794
Rule 833
Rule 847
Rule 6283
Rubi steps
\begin {align*} \int \frac {e^{\tanh ^{-1}(a x)} x^4}{c-a^2 c x^2} \, dx &=\frac {\int \frac {x^4 (1+a x)}{\left (1-a^2 x^2\right )^{3/2}} \, dx}{c}\\ &=\frac {x^3 (1+a x)}{a^2 c \sqrt {1-a^2 x^2}}-\frac {\int \frac {x^2 (3+4 a x)}{\sqrt {1-a^2 x^2}} \, dx}{a^2 c}\\ &=\frac {x^3 (1+a x)}{a^2 c \sqrt {1-a^2 x^2}}+\frac {4 x^2 \sqrt {1-a^2 x^2}}{3 a^3 c}+\frac {\int \frac {x \left (-8 a-9 a^2 x\right )}{\sqrt {1-a^2 x^2}} \, dx}{3 a^4 c}\\ &=\frac {x^3 (1+a x)}{a^2 c \sqrt {1-a^2 x^2}}+\frac {4 x^2 \sqrt {1-a^2 x^2}}{3 a^3 c}+\frac {(16+9 a x) \sqrt {1-a^2 x^2}}{6 a^5 c}-\frac {3 \int \frac {1}{\sqrt {1-a^2 x^2}} \, dx}{2 a^4 c}\\ &=\frac {x^3 (1+a x)}{a^2 c \sqrt {1-a^2 x^2}}+\frac {4 x^2 \sqrt {1-a^2 x^2}}{3 a^3 c}+\frac {(16+9 a x) \sqrt {1-a^2 x^2}}{6 a^5 c}-\frac {3 \sin ^{-1}(a x)}{2 a^5 c}\\ \end {align*}
________________________________________________________________________________________
Mathematica [A]
time = 0.03, size = 74, normalized size = 0.73 \begin {gather*} -\frac {-16-9 a x+8 a^2 x^2+3 a^3 x^3+2 a^4 x^4+9 \sqrt {1-a^2 x^2} \text {ArcSin}(a x)}{6 a^5 c \sqrt {1-a^2 x^2}} \end {gather*}
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(187\) vs.
\(2(89)=178\).
time = 0.08, size = 188, normalized size = 1.86
method | result | size |
risch | \(-\frac {\left (2 a^{2} x^{2}+3 a x +10\right ) \left (a^{2} x^{2}-1\right )}{6 a^{5} \sqrt {-a^{2} x^{2}+1}\, c}-\frac {\frac {3 \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{2 a^{4} \sqrt {a^{2}}}+\frac {\sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 \left (x -\frac {1}{a}\right ) a}}{a^{6} \left (x -\frac {1}{a}\right )}}{c}\) | \(121\) |
default | \(-\frac {\frac {-\frac {x^{2} \sqrt {-a^{2} x^{2}+1}}{3 a^{2}}-\frac {2 \sqrt {-a^{2} x^{2}+1}}{3 a^{4}}}{a}+\frac {-\frac {x \sqrt {-a^{2} x^{2}+1}}{2 a^{2}}+\frac {\arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{2 a^{2} \sqrt {a^{2}}}}{a^{2}}-\frac {\sqrt {-a^{2} x^{2}+1}}{a^{5}}+\frac {\arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{a^{4} \sqrt {a^{2}}}+\frac {\sqrt {-a^{2} \left (x -\frac {1}{a}\right )^{2}-2 \left (x -\frac {1}{a}\right ) a}}{a^{6} \left (x -\frac {1}{a}\right )}}{c}\) | \(188\) |
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 204 vs.
\(2 (89) = 178\).
time = 0.54, size = 204, normalized size = 2.02 \begin {gather*} -\frac {1}{6} \, a {\left (\frac {3 \, \sqrt {-a^{2} x^{2} + 1} c}{a^{7} c^{2} x + a^{6} c^{2}} + \frac {3 \, \sqrt {-a^{2} x^{2} + 1} c}{a^{7} c^{2} x - a^{6} c^{2}} - \frac {3 \, \sqrt {-a^{2} x^{2} + 1}}{a^{7} c x + a^{6} c} + \frac {3 \, \sqrt {-a^{2} x^{2} + 1}}{a^{7} c x - a^{6} c} - \frac {2 \, \sqrt {-a^{2} x^{2} + 1} x^{2}}{a^{4} c} - \frac {3 \, \sqrt {-a^{2} x^{2} + 1} x}{a^{5} c} + \frac {9 \, \arcsin \left (a x\right )}{a^{6} c} - \frac {10 \, \sqrt {-a^{2} x^{2} + 1}}{a^{6} c}\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Fricas [A]
time = 0.35, size = 86, normalized size = 0.85 \begin {gather*} \frac {16 \, a x + 18 \, {\left (a x - 1\right )} \arctan \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{a x}\right ) + {\left (2 \, a^{3} x^{3} + a^{2} x^{2} + 7 \, a x - 16\right )} \sqrt {-a^{2} x^{2} + 1} - 16}{6 \, {\left (a^{6} c x - a^{5} c\right )}} \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*} \frac {\int \frac {x^{4}}{- a^{2} x^{2} \sqrt {- a^{2} x^{2} + 1} + \sqrt {- a^{2} x^{2} + 1}}\, dx + \int \frac {a x^{5}}{- a^{2} x^{2} \sqrt {- a^{2} x^{2} + 1} + \sqrt {- a^{2} x^{2} + 1}}\, dx}{c} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Giac [A]
time = 0.43, size = 102, normalized size = 1.01 \begin {gather*} \frac {1}{6} \, \sqrt {-a^{2} x^{2} + 1} {\left (x {\left (\frac {2 \, x}{a^{3} c} + \frac {3}{a^{4} c}\right )} + \frac {10}{a^{5} c}\right )} - \frac {3 \, \arcsin \left (a x\right ) \mathrm {sgn}\left (a\right )}{2 \, a^{4} c {\left | a \right |}} + \frac {2}{a^{4} c {\left (\frac {\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a}{a^{2} x} - 1\right )} {\left | a \right |}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
Mupad [B]
time = 0.89, size = 140, normalized size = 1.39 \begin {gather*} \frac {5\,\sqrt {1-a^2\,x^2}}{3\,a^5\,c}-\frac {\sqrt {1-a^2\,x^2}}{\sqrt {-a^2}\,\left (a^3\,c\,\sqrt {-a^2}-a^4\,c\,x\,\sqrt {-a^2}\right )}+\frac {x\,\sqrt {1-a^2\,x^2}}{2\,a^4\,c}-\frac {3\,\mathrm {asinh}\left (x\,\sqrt {-a^2}\right )}{2\,a^4\,c\,\sqrt {-a^2}}+\frac {x^2\,\sqrt {1-a^2\,x^2}}{3\,a^3\,c} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________