Integrand size = 16, antiderivative size = 15 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {-1+x} \sqrt {1+x} \]
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Time = 0.00 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {75} \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {x-1} \sqrt {x+1} \]
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Rule 75
Rubi steps \begin{align*} \text {integral}& = \sqrt {-1+x} \sqrt {1+x} \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 15, normalized size of antiderivative = 1.00 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {-1+x} \sqrt {1+x} \]
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Time = 1.45 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.80
method | result | size |
gosper | \(\sqrt {-1+x}\, \sqrt {1+x}\) | \(12\) |
default | \(\sqrt {-1+x}\, \sqrt {1+x}\) | \(12\) |
risch | \(\sqrt {-1+x}\, \sqrt {1+x}\) | \(12\) |
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none
Time = 0.23 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.73 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {x + 1} \sqrt {x - 1} \]
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Result contains complex when optimal does not.
Time = 1.57 (sec) , antiderivative size = 76, normalized size of antiderivative = 5.07 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\frac {{G_{6, 6}^{6, 2}\left (\begin {matrix} - \frac {1}{4}, \frac {1}{4} & 0, 0, \frac {1}{2}, 1 \\- \frac {1}{2}, - \frac {1}{4}, 0, \frac {1}{4}, \frac {1}{2}, 0 & \end {matrix} \middle | {\frac {1}{x^{2}}} \right )}}{4 \pi ^{\frac {3}{2}}} + \frac {i {G_{6, 6}^{2, 6}\left (\begin {matrix} -1, - \frac {3}{4}, - \frac {1}{2}, - \frac {1}{4}, 0, 1 & \\- \frac {3}{4}, - \frac {1}{4} & -1, - \frac {1}{2}, - \frac {1}{2}, 0 \end {matrix} \middle | {\frac {e^{2 i \pi }}{x^{2}}} \right )}}{4 \pi ^{\frac {3}{2}}} \]
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Result contains higher order function than in optimal. Order 3 vs. order 2.
Time = 0.21 (sec) , antiderivative size = 7, normalized size of antiderivative = 0.47 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {x^{2} - 1} \]
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none
Time = 0.29 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.73 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=\sqrt {x + 1} \sqrt {x - 1} \]
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Time = 2.67 (sec) , antiderivative size = 67, normalized size of antiderivative = 4.47 \[ \int \frac {x}{\sqrt {-1+x} \sqrt {1+x}} \, dx=-\frac {{\left (\sqrt {x-1}-\mathrm {i}\right )}^2\,8{}\mathrm {i}}{{\left (\sqrt {x+1}-1\right )}^2\,\left (1+\frac {{\left (\sqrt {x-1}-\mathrm {i}\right )}^4}{{\left (\sqrt {x+1}-1\right )}^4}-\frac {2\,{\left (\sqrt {x-1}-\mathrm {i}\right )}^2}{{\left (\sqrt {x+1}-1\right )}^2}\right )} \]
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