Integrand size = 25, antiderivative size = 69 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {i c (1-i a x)^4}{3 a \left (c+a^2 c x^2\right )^{5/2}}-\frac {i c (1-i a x)^5}{15 a \left (c+a^2 c x^2\right )^{5/2}} \]
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Time = 0.05 (sec) , antiderivative size = 69, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.120, Rules used = {5182, 673, 665} \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {i c (1-i a x)^4}{3 a \left (a^2 c x^2+c\right )^{5/2}}-\frac {i c (1-i a x)^5}{15 a \left (a^2 c x^2+c\right )^{5/2}} \]
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Rule 665
Rule 673
Rule 5182
Rubi steps \begin{align*} \text {integral}& = c^2 \int \frac {(1-i a x)^4}{\left (c+a^2 c x^2\right )^{7/2}} \, dx \\ & = \frac {i c (1-i a x)^4}{3 a \left (c+a^2 c x^2\right )^{5/2}}-\frac {1}{3} c^2 \int \frac {(1-i a x)^5}{\left (c+a^2 c x^2\right )^{7/2}} \, dx \\ & = \frac {i c (1-i a x)^4}{3 a \left (c+a^2 c x^2\right )^{5/2}}-\frac {i c (1-i a x)^5}{15 a \left (c+a^2 c x^2\right )^{5/2}} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 77, normalized size of antiderivative = 1.12 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {(1-i a x)^{3/2} (-4 i+a x) \sqrt {1+a^2 x^2}}{15 a c \sqrt {1+i a x} (-i+a x)^2 \sqrt {c+a^2 c x^2}} \]
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Time = 0.38 (sec) , antiderivative size = 58, normalized size of antiderivative = 0.84
method | result | size |
gosper | \(-\frac {\left (-a x +i\right ) \left (a x +i\right ) \left (-a x +4 i\right ) \left (a^{2} x^{2}+1\right )^{2}}{15 a \left (i a x +1\right )^{4} \left (a^{2} c \,x^{2}+c \right )^{\frac {3}{2}}}\) | \(58\) |
default | \(\frac {x}{c \sqrt {a^{2} c \,x^{2}+c}}-\frac {4 \left (\frac {i}{5 a c \left (x -\frac {i}{a}\right )^{2} \sqrt {\left (x -\frac {i}{a}\right )^{2} a^{2} c +2 i a c \left (x -\frac {i}{a}\right )}}+\frac {3 i a \left (\frac {i}{3 a c \left (x -\frac {i}{a}\right ) \sqrt {\left (x -\frac {i}{a}\right )^{2} a^{2} c +2 i a c \left (x -\frac {i}{a}\right )}}+\frac {i \left (2 \left (x -\frac {i}{a}\right ) a^{2} c +2 i a c \right )}{3 a \,c^{2} \sqrt {\left (x -\frac {i}{a}\right )^{2} a^{2} c +2 i a c \left (x -\frac {i}{a}\right )}}\right )}{5}\right )}{a^{2}}+\frac {4 i \left (\frac {i}{3 a c \left (x -\frac {i}{a}\right ) \sqrt {\left (x -\frac {i}{a}\right )^{2} a^{2} c +2 i a c \left (x -\frac {i}{a}\right )}}+\frac {i \left (2 \left (x -\frac {i}{a}\right ) a^{2} c +2 i a c \right )}{3 a \,c^{2} \sqrt {\left (x -\frac {i}{a}\right )^{2} a^{2} c +2 i a c \left (x -\frac {i}{a}\right )}}\right )}{a}\) | \(307\) |
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none
Time = 0.30 (sec) , antiderivative size = 66, normalized size of antiderivative = 0.96 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {\sqrt {a^{2} c x^{2} + c} {\left (a^{2} x^{2} - 3 i \, a x + 4\right )}}{15 \, {\left (a^{4} c^{2} x^{3} - 3 i \, a^{3} c^{2} x^{2} - 3 \, a^{2} c^{2} x + i \, a c^{2}\right )}} \]
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\[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\int \frac {\left (a^{2} x^{2} + 1\right )^{2}}{\left (c \left (a^{2} x^{2} + 1\right )\right )^{\frac {3}{2}} \left (a x - i\right )^{4}}\, dx \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 119 vs. \(2 (53) = 106\).
Time = 0.18 (sec) , antiderivative size = 119, normalized size of antiderivative = 1.72 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=-\frac {x}{15 \, \sqrt {a^{2} c x^{2} + c} c} - \frac {4 i}{5 \, {\left (\sqrt {a^{2} c x^{2} + c} a^{3} c x^{2} - 2 i \, \sqrt {a^{2} c x^{2} + c} a^{2} c x - \sqrt {a^{2} c x^{2} + c} a c\right )}} - \frac {8 i}{15 i \, \sqrt {a^{2} c x^{2} + c} a^{2} c x + 15 \, \sqrt {a^{2} c x^{2} + c} a c} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 134 vs. \(2 (53) = 106\).
Time = 0.31 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.94 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {2 \, {\left (15 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} + c}\right )}^{3} \sqrt {c} + 5 i \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} + c}\right )}^{2} c - 5 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} + c}\right )} c^{\frac {3}{2}} + i \, c^{2}\right )}}{15 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} + c} - i \, \sqrt {c}\right )}^{5} a c} \]
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Time = 1.10 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.65 \[ \int \frac {e^{-4 i \arctan (a x)}}{\left (c+a^2 c x^2\right )^{3/2}} \, dx=\frac {\sqrt {c\,\left (a^2\,x^2+1\right )}\,\left (a^2\,x^2-a\,x\,3{}\mathrm {i}+4\right )\,1{}\mathrm {i}}{15\,a\,c^2\,{\left (1+a\,x\,1{}\mathrm {i}\right )}^3} \]
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