Integrand size = 25, antiderivative size = 297 \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}-\frac {i \sqrt {2} \arctan \left (1-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {i \sqrt {2} \arctan \left (1+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}-\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a}+\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a} \]
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Time = 0.10 (sec) , antiderivative size = 297, normalized size of antiderivative = 1.00, number of steps used = 13, number of rules used = 9, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.360, Rules used = {49, 65, 246, 217, 1179, 642, 1176, 631, 210} \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=-\frac {i \sqrt {2} \arctan \left (1-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {i \sqrt {2} \arctan \left (1+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}-\frac {i \log \left (\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}+1\right )}{\sqrt {2} a}+\frac {i \log \left (\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}+1\right )}{\sqrt {2} a} \]
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Rule 49
Rule 65
Rule 210
Rule 217
Rule 246
Rule 631
Rule 642
Rule 1176
Rule 1179
Rubi steps \begin{align*} \text {integral}& = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\int \frac {\sqrt [4]{a-i a x}}{(a+i a x)^{5/4}} \, dx \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}+\int \frac {1}{(a-i a x)^{3/4} \sqrt [4]{a+i a x}} \, dx \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}+\frac {(4 i) \text {Subst}\left (\int \frac {1}{\sqrt [4]{2 a-x^4}} \, dx,x,\sqrt [4]{a-i a x}\right )}{a} \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}+\frac {(4 i) \text {Subst}\left (\int \frac {1}{1+x^4} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a} \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}+\frac {(2 i) \text {Subst}\left (\int \frac {1-x^2}{1+x^4} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {(2 i) \text {Subst}\left (\int \frac {1+x^2}{1+x^4} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a} \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}+\frac {i \text {Subst}\left (\int \frac {1}{1-\sqrt {2} x+x^2} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {i \text {Subst}\left (\int \frac {1}{1+\sqrt {2} x+x^2} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}-\frac {i \text {Subst}\left (\int \frac {\sqrt {2}+2 x}{-1-\sqrt {2} x-x^2} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a}-\frac {i \text {Subst}\left (\int \frac {\sqrt {2}-2 x}{-1+\sqrt {2} x-x^2} \, dx,x,\frac {\sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a} \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}-\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a}+\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a}+\frac {\left (i \sqrt {2}\right ) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}-\frac {\left (i \sqrt {2}\right ) \text {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a} \\ & = \frac {4 i (a-i a x)^{5/4}}{5 a (a+i a x)^{5/4}}-\frac {4 i \sqrt [4]{a-i a x}}{a \sqrt [4]{a+i a x}}-\frac {i \sqrt {2} \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}+\frac {i \sqrt {2} \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{a}-\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}-\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a}+\frac {i \log \left (1+\frac {\sqrt {a-i a x}}{\sqrt {a+i a x}}+\frac {\sqrt {2} \sqrt [4]{a-i a x}}{\sqrt [4]{a+i a x}}\right )}{\sqrt {2} a} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 3 in optimal.
Time = 2.41 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.24 \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\frac {i \sqrt [4]{1+i x} (a-i a x)^{9/4} \operatorname {Hypergeometric2F1}\left (\frac {9}{4},\frac {9}{4},\frac {13}{4},\frac {1}{2}-\frac {i x}{2}\right )}{9 \sqrt [4]{2} a^3 \sqrt [4]{a+i a x}} \]
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Result contains higher order function than in optimal. Order 9 vs. order 3.
Time = 0.22 (sec) , antiderivative size = 493, normalized size of antiderivative = 1.66
method | result | size |
risch | \(\frac {8 \left (3 x^{2}+i x +2\right ) \left (-a \left (i x -1\right )\right )^{\frac {1}{4}}}{5 \left (x -i\right ) a \left (i x -1\right ) \left (a \left (i x +1\right )\right )^{\frac {1}{4}}}-\frac {\left (\operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \ln \left (\frac {-\left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) x^{2}-x^{3}+i \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {3}{4}}-2 i \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}} x +i \sqrt {-x^{4}-2 i x^{3}-2 i x +1}\, x -2 i x^{2}+\operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}}-\sqrt {-x^{4}-2 i x^{3}-2 i x +1}+x}{\left (i x -1\right )^{2}}\right )-i \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \ln \left (-\frac {-i \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}} \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) x^{2}+2 \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}} x +x^{3}+i \sqrt {-x^{4}-2 i x^{3}-2 i x +1}\, x +\operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {3}{4}}+i \operatorname {RootOf}\left (\textit {\_Z}^{2}+i\right ) \left (-x^{4}-2 i x^{3}-2 i x +1\right )^{\frac {1}{4}}+2 i x^{2}-\sqrt {-x^{4}-2 i x^{3}-2 i x +1}-x}{\left (i x -1\right )^{2}}\right )\right ) \left (-a \left (i x -1\right )\right )^{\frac {1}{4}} \left (-\left (i x -1\right )^{3} \left (i x +1\right )\right )^{\frac {1}{4}}}{a \left (i x -1\right ) \left (a \left (i x +1\right )\right )^{\frac {1}{4}}}\) | \(493\) |
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none
Time = 0.24 (sec) , antiderivative size = 343, normalized size of antiderivative = 1.15 \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\frac {5 \, {\left (a^{2} x^{2} - 2 i \, a^{2} x - a^{2}\right )} \sqrt {\frac {4 i}{a^{2}}} \log \left (\frac {{\left (a^{2} x - i \, a^{2}\right )} \sqrt {\frac {4 i}{a^{2}}} + 2 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {1}{4}}}{2 \, {\left (x - i\right )}}\right ) - 5 \, {\left (a^{2} x^{2} - 2 i \, a^{2} x - a^{2}\right )} \sqrt {\frac {4 i}{a^{2}}} \log \left (-\frac {{\left (a^{2} x - i \, a^{2}\right )} \sqrt {\frac {4 i}{a^{2}}} - 2 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {1}{4}}}{2 \, {\left (x - i\right )}}\right ) + 5 \, {\left (a^{2} x^{2} - 2 i \, a^{2} x - a^{2}\right )} \sqrt {-\frac {4 i}{a^{2}}} \log \left (\frac {{\left (a^{2} x - i \, a^{2}\right )} \sqrt {-\frac {4 i}{a^{2}}} + 2 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {1}{4}}}{2 \, {\left (x - i\right )}}\right ) - 5 \, {\left (a^{2} x^{2} - 2 i \, a^{2} x - a^{2}\right )} \sqrt {-\frac {4 i}{a^{2}}} \log \left (-\frac {{\left (a^{2} x - i \, a^{2}\right )} \sqrt {-\frac {4 i}{a^{2}}} - 2 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {1}{4}}}{2 \, {\left (x - i\right )}}\right ) - 16 \, {\left (i \, a x + a\right )}^{\frac {3}{4}} {\left (-i \, a x + a\right )}^{\frac {1}{4}} {\left (3 \, x - 2 i\right )}}{10 \, {\left (a^{2} x^{2} - 2 i \, a^{2} x - a^{2}\right )}} \]
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\[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\int \frac {\left (- i a \left (x + i\right )\right )^{\frac {5}{4}}}{\left (i a \left (x - i\right )\right )^{\frac {9}{4}}}\, dx \]
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\[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\int { \frac {{\left (-i \, a x + a\right )}^{\frac {5}{4}}}{{\left (i \, a x + a\right )}^{\frac {9}{4}}} \,d x } \]
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Exception generated. \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\text {Exception raised: RuntimeError} \]
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Timed out. \[ \int \frac {(a-i a x)^{5/4}}{(a+i a x)^{9/4}} \, dx=\int \frac {{\left (a-a\,x\,1{}\mathrm {i}\right )}^{5/4}}{{\left (a+a\,x\,1{}\mathrm {i}\right )}^{9/4}} \,d x \]
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