Optimal. Leaf size=143 \[ -\frac {a+b \text {ArcTan}\left (c x^2\right )}{x}-\frac {b \sqrt {c} \text {ArcTan}\left (1-\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}+\frac {b \sqrt {c} \text {ArcTan}\left (1+\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}-\frac {b \sqrt {c} \log \left (1-\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}+\frac {b \sqrt {c} \log \left (1+\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}} \]
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Rubi [A]
time = 0.06, antiderivative size = 143, normalized size of antiderivative = 1.00, number of steps
used = 10, number of rules used = 7, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {4946, 217,
1179, 642, 1176, 631, 210} \begin {gather*} -\frac {a+b \text {ArcTan}\left (c x^2\right )}{x}-\frac {b \sqrt {c} \text {ArcTan}\left (1-\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}+\frac {b \sqrt {c} \text {ArcTan}\left (\sqrt {2} \sqrt {c} x+1\right )}{\sqrt {2}}-\frac {b \sqrt {c} \log \left (c x^2-\sqrt {2} \sqrt {c} x+1\right )}{2 \sqrt {2}}+\frac {b \sqrt {c} \log \left (c x^2+\sqrt {2} \sqrt {c} x+1\right )}{2 \sqrt {2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 210
Rule 217
Rule 631
Rule 642
Rule 1176
Rule 1179
Rule 4946
Rubi steps
\begin {align*} \int \frac {a+b \tan ^{-1}\left (c x^2\right )}{x^2} \, dx &=-\frac {a+b \tan ^{-1}\left (c x^2\right )}{x}+(2 b c) \int \frac {1}{1+c^2 x^4} \, dx\\ &=-\frac {a+b \tan ^{-1}\left (c x^2\right )}{x}+(b c) \int \frac {1-c x^2}{1+c^2 x^4} \, dx+(b c) \int \frac {1+c x^2}{1+c^2 x^4} \, dx\\ &=-\frac {a+b \tan ^{-1}\left (c x^2\right )}{x}+\frac {1}{2} b \int \frac {1}{\frac {1}{c}-\frac {\sqrt {2} x}{\sqrt {c}}+x^2} \, dx+\frac {1}{2} b \int \frac {1}{\frac {1}{c}+\frac {\sqrt {2} x}{\sqrt {c}}+x^2} \, dx-\frac {\left (b \sqrt {c}\right ) \int \frac {\frac {\sqrt {2}}{\sqrt {c}}+2 x}{-\frac {1}{c}-\frac {\sqrt {2} x}{\sqrt {c}}-x^2} \, dx}{2 \sqrt {2}}-\frac {\left (b \sqrt {c}\right ) \int \frac {\frac {\sqrt {2}}{\sqrt {c}}-2 x}{-\frac {1}{c}+\frac {\sqrt {2} x}{\sqrt {c}}-x^2} \, dx}{2 \sqrt {2}}\\ &=-\frac {a+b \tan ^{-1}\left (c x^2\right )}{x}-\frac {b \sqrt {c} \log \left (1-\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}+\frac {b \sqrt {c} \log \left (1+\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}+\frac {\left (b \sqrt {c}\right ) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}-\frac {\left (b \sqrt {c}\right ) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}\\ &=-\frac {a+b \tan ^{-1}\left (c x^2\right )}{x}-\frac {b \sqrt {c} \tan ^{-1}\left (1-\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}+\frac {b \sqrt {c} \tan ^{-1}\left (1+\sqrt {2} \sqrt {c} x\right )}{\sqrt {2}}-\frac {b \sqrt {c} \log \left (1-\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}+\frac {b \sqrt {c} \log \left (1+\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 158, normalized size = 1.10 \begin {gather*} -\frac {a}{x}-\frac {b \text {ArcTan}\left (c x^2\right )}{x}+\frac {b \sqrt {c} \text {ArcTan}\left (\frac {-\sqrt {2}+2 \sqrt {c} x}{\sqrt {2}}\right )}{\sqrt {2}}+\frac {b \sqrt {c} \text {ArcTan}\left (\frac {\sqrt {2}+2 \sqrt {c} x}{\sqrt {2}}\right )}{\sqrt {2}}-\frac {b \sqrt {c} \log \left (1-\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}}+\frac {b \sqrt {c} \log \left (1+\sqrt {2} \sqrt {c} x+c x^2\right )}{2 \sqrt {2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.10, size = 125, normalized size = 0.87
method | result | size |
default | \(-\frac {a}{x}-\frac {b \arctan \left (c \,x^{2}\right )}{x}+\frac {b c \left (\frac {1}{c^{2}}\right )^{\frac {1}{4}} \sqrt {2}\, \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {1}{c^{2}}\right )^{\frac {1}{4}}}-1\right )}{2}+\frac {b c \left (\frac {1}{c^{2}}\right )^{\frac {1}{4}} \sqrt {2}\, \ln \left (\frac {x^{2}+\left (\frac {1}{c^{2}}\right )^{\frac {1}{4}} x \sqrt {2}+\sqrt {\frac {1}{c^{2}}}}{x^{2}-\left (\frac {1}{c^{2}}\right )^{\frac {1}{4}} x \sqrt {2}+\sqrt {\frac {1}{c^{2}}}}\right )}{4}+\frac {b c \left (\frac {1}{c^{2}}\right )^{\frac {1}{4}} \sqrt {2}\, \arctan \left (\frac {\sqrt {2}\, x}{\left (\frac {1}{c^{2}}\right )^{\frac {1}{4}}}+1\right )}{2}\) | \(125\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.49, size = 132, normalized size = 0.92 \begin {gather*} \frac {1}{4} \, {\left (c {\left (\frac {2 \, \sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (2 \, c x + \sqrt {2} \sqrt {c}\right )}}{2 \, \sqrt {c}}\right )}{\sqrt {c}} + \frac {2 \, \sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (2 \, c x - \sqrt {2} \sqrt {c}\right )}}{2 \, \sqrt {c}}\right )}{\sqrt {c}} + \frac {\sqrt {2} \log \left (c x^{2} + \sqrt {2} \sqrt {c} x + 1\right )}{\sqrt {c}} - \frac {\sqrt {2} \log \left (c x^{2} - \sqrt {2} \sqrt {c} x + 1\right )}{\sqrt {c}}\right )} - \frac {4 \, \arctan \left (c x^{2}\right )}{x}\right )} b - \frac {a}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 322 vs.
\(2 (107) = 214\).
time = 2.09, size = 322, normalized size = 2.25 \begin {gather*} -\frac {4 \, \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} x \arctan \left (-\frac {b^{4} c^{2} + \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {3}{4}} b c x - \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {3}{4}} \sqrt {b^{2} c^{2} x^{2} + \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} b c x + \sqrt {b^{4} c^{2}}}}{b^{4} c^{2}}\right ) + 4 \, \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} x \arctan \left (\frac {b^{4} c^{2} - \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {3}{4}} b c x + \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {3}{4}} \sqrt {b^{2} c^{2} x^{2} - \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} b c x + \sqrt {b^{4} c^{2}}}}{b^{4} c^{2}}\right ) - \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} x \log \left (b^{2} c^{2} x^{2} + \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} b c x + \sqrt {b^{4} c^{2}}\right ) + \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} x \log \left (b^{2} c^{2} x^{2} - \sqrt {2} \left (b^{4} c^{2}\right )^{\frac {1}{4}} b c x + \sqrt {b^{4} c^{2}}\right ) + 4 \, b \arctan \left (c x^{2}\right ) + 4 \, a}{4 \, x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 8.22, size = 121, normalized size = 0.85 \begin {gather*} \begin {cases} - \frac {a}{x} - b c \sqrt [4]{- \frac {1}{c^{2}}} \log {\left (x - \sqrt [4]{- \frac {1}{c^{2}}} \right )} + \frac {b c \sqrt [4]{- \frac {1}{c^{2}}} \log {\left (x^{2} + \sqrt {- \frac {1}{c^{2}}} \right )}}{2} + b c \sqrt [4]{- \frac {1}{c^{2}}} \operatorname {atan}{\left (\frac {x}{\sqrt [4]{- \frac {1}{c^{2}}}} \right )} - \frac {b \operatorname {atan}{\left (c x^{2} \right )}}{\sqrt [4]{- \frac {1}{c^{2}}}} - \frac {b \operatorname {atan}{\left (c x^{2} \right )}}{x} & \text {for}\: c \neq 0 \\- \frac {a}{x} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.45, size = 138, normalized size = 0.97 \begin {gather*} \frac {1}{4} \, b c {\left (\frac {2 \, \sqrt {2} \arctan \left (\frac {1}{2} \, \sqrt {2} {\left (2 \, x + \frac {\sqrt {2}}{\sqrt {{\left | c \right |}}}\right )} \sqrt {{\left | c \right |}}\right )}{\sqrt {{\left | c \right |}}} + \frac {2 \, \sqrt {2} \arctan \left (\frac {1}{2} \, \sqrt {2} {\left (2 \, x - \frac {\sqrt {2}}{\sqrt {{\left | c \right |}}}\right )} \sqrt {{\left | c \right |}}\right )}{\sqrt {{\left | c \right |}}} + \frac {\sqrt {2} \log \left (x^{2} + \frac {\sqrt {2} x}{\sqrt {{\left | c \right |}}} + \frac {1}{{\left | c \right |}}\right )}{\sqrt {{\left | c \right |}}} - \frac {\sqrt {2} \log \left (x^{2} - \frac {\sqrt {2} x}{\sqrt {{\left | c \right |}}} + \frac {1}{{\left | c \right |}}\right )}{\sqrt {{\left | c \right |}}}\right )} - \frac {b \arctan \left (c x^{2}\right ) + a}{x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.20, size = 55, normalized size = 0.38 \begin {gather*} -\frac {a}{x}-\frac {b\,\mathrm {atan}\left (c\,x^2\right )}{x}-{\left (-1\right )}^{1/4}\,b\,\sqrt {c}\,\mathrm {atan}\left ({\left (-1\right )}^{1/4}\,\sqrt {c}\,x\right )\,1{}\mathrm {i}-{\left (-1\right )}^{1/4}\,b\,\sqrt {c}\,\mathrm {atan}\left ({\left (-1\right )}^{1/4}\,\sqrt {c}\,x\,1{}\mathrm {i}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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