Integrand size = 29, antiderivative size = 52 \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\frac {\sqrt {1-\frac {c x^4}{a}} E\left (\left .\arcsin \left (\sqrt [4]{\frac {c}{a}} x\right )\right |-1\right )}{\sqrt [4]{\frac {c}{a}} \sqrt {-a+c x^4}} \]
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Time = 0.03 (sec) , antiderivative size = 52, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.103, Rules used = {1214, 1213, 435} \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\frac {\sqrt {1-\frac {c x^4}{a}} E\left (\left .\arcsin \left (\sqrt [4]{\frac {c}{a}} x\right )\right |-1\right )}{\sqrt [4]{\frac {c}{a}} \sqrt {c x^4-a}} \]
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Rule 435
Rule 1213
Rule 1214
Rubi steps \begin{align*} \text {integral}& = \frac {\sqrt {1-\frac {c x^4}{a}} \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {1-\frac {c x^4}{a}}} \, dx}{\sqrt {-a+c x^4}} \\ & = \frac {\sqrt {1-\frac {c x^4}{a}} \int \frac {\sqrt {1+\sqrt {\frac {c}{a}} x^2}}{\sqrt {1-\sqrt {\frac {c}{a}} x^2}} \, dx}{\sqrt {-a+c x^4}} \\ & = \frac {\sqrt {1-\frac {c x^4}{a}} E\left (\left .\sin ^{-1}\left (\sqrt [4]{\frac {c}{a}} x\right )\right |-1\right )}{\sqrt [4]{\frac {c}{a}} \sqrt {-a+c x^4}} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 10.03 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.63 \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\frac {\sqrt {1-\frac {c x^4}{a}} \left (3 x \operatorname {Hypergeometric2F1}\left (\frac {1}{4},\frac {1}{2},\frac {5}{4},\frac {c x^4}{a}\right )+\sqrt {\frac {c}{a}} x^3 \operatorname {Hypergeometric2F1}\left (\frac {1}{2},\frac {3}{4},\frac {7}{4},\frac {c x^4}{a}\right )\right )}{3 \sqrt {-a+c x^4}} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 164 vs. \(2 (44 ) = 88\).
Time = 1.85 (sec) , antiderivative size = 165, normalized size of antiderivative = 3.17
method | result | size |
default | \(\frac {\sqrt {1+\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \sqrt {1-\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, F\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )}{\sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}\, \sqrt {c \,x^{4}-a}}+\frac {\sqrt {\frac {c}{a}}\, \sqrt {a}\, \sqrt {1+\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \sqrt {1-\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \left (F\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )-E\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )\right )}{\sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}\, \sqrt {c \,x^{4}-a}\, \sqrt {c}}\) | \(165\) |
elliptic | \(\frac {\left (1+x^{2} \sqrt {\frac {c}{a}}\right ) a \sqrt {-\frac {\left (-c \,x^{4}+a \right ) c}{a}}\, \left (\frac {\sqrt {c}\, \sqrt {1+\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \sqrt {1-\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \left (F\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )-E\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )\right )}{\sqrt {a}\, \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}\, \sqrt {\frac {c^{2} x^{4}}{a}-c}}+\frac {\sqrt {1+\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, \sqrt {1-\frac {\sqrt {c}\, x^{2}}{\sqrt {a}}}\, F\left (x \sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}, i\right )}{\sqrt {-\frac {\sqrt {c}}{\sqrt {a}}}\, \sqrt {c \,x^{4}-a}}\right )}{c \,x^{2} \sqrt {c \,x^{4}-a}+a \sqrt {-\frac {\left (-c \,x^{4}+a \right ) c}{a}}}\) | \(231\) |
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Leaf count of result is larger than twice the leaf count of optimal. 131 vs. \(2 (43) = 86\).
Time = 0.08 (sec) , antiderivative size = 131, normalized size of antiderivative = 2.52 \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\frac {2 \, a \sqrt {c} x \left (\frac {a}{c}\right )^{\frac {3}{4}} \sqrt {\frac {c}{a}} E(\arcsin \left (\frac {\left (\frac {a}{c}\right )^{\frac {1}{4}}}{x}\right )\,|\,-1) - \sqrt {2} {\left (\sqrt {2} a x \sqrt {\frac {a}{c}} \sqrt {\frac {c}{a}} + \sqrt {2} c x \sqrt {\frac {a}{c}}\right )} \sqrt {c} \left (\frac {a}{c}\right )^{\frac {1}{4}} F(\arcsin \left (\frac {\left (\frac {a}{c}\right )^{\frac {1}{4}}}{x}\right )\,|\,-1) + 2 \, \sqrt {c x^{4} - a} a \sqrt {\frac {c}{a}}}{2 \, a c x} \]
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Both result and optimal contain complex but leaf count of result is larger than twice the leaf count of optimal. 76 vs. \(2 (37) = 74\).
Time = 0.87 (sec) , antiderivative size = 76, normalized size of antiderivative = 1.46 \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=- \frac {i x^{3} \sqrt {\frac {c}{a}} \Gamma \left (\frac {3}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{2}, \frac {3}{4} \\ \frac {7}{4} \end {matrix}\middle | {\frac {c x^{4}}{a}} \right )}}{4 \sqrt {a} \Gamma \left (\frac {7}{4}\right )} - \frac {i x \Gamma \left (\frac {1}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} \frac {1}{4}, \frac {1}{2} \\ \frac {5}{4} \end {matrix}\middle | {\frac {c x^{4}}{a}} \right )}}{4 \sqrt {a} \Gamma \left (\frac {5}{4}\right )} \]
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\[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\int { \frac {x^{2} \sqrt {\frac {c}{a}} + 1}{\sqrt {c x^{4} - a}} \,d x } \]
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\[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\int { \frac {x^{2} \sqrt {\frac {c}{a}} + 1}{\sqrt {c x^{4} - a}} \,d x } \]
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Timed out. \[ \int \frac {1+\sqrt {\frac {c}{a}} x^2}{\sqrt {-a+c x^4}} \, dx=\int \frac {x^2\,\sqrt {\frac {c}{a}}+1}{\sqrt {c\,x^4-a}} \,d x \]
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