Integrand size = 6, antiderivative size = 26 \[ \int x^m \log (x) \, dx=-\frac {x^{1+m}}{(1+m)^2}+\frac {x^{1+m} \log (x)}{1+m} \]
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Time = 0.01 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.167, Rules used = {2341} \[ \int x^m \log (x) \, dx=\frac {x^{m+1} \log (x)}{m+1}-\frac {x^{m+1}}{(m+1)^2} \]
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Rule 2341
Rubi steps \begin{align*} \text {integral}& = -\frac {x^{1+m}}{(1+m)^2}+\frac {x^{1+m} \log (x)}{1+m} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.73 \[ \int x^m \log (x) \, dx=\frac {x^{1+m} (-1+(1+m) \log (x))}{(1+m)^2} \]
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Time = 0.03 (sec) , antiderivative size = 19, normalized size of antiderivative = 0.73
method | result | size |
risch | \(\frac {x \left (m \ln \left (x \right )+\ln \left (x \right )-1\right ) x^{m}}{\left (1+m \right )^{2}}\) | \(19\) |
norman | \(\frac {x \ln \left (x \right ) {\mathrm e}^{m \ln \left (x \right )}}{1+m}-\frac {x \,{\mathrm e}^{m \ln \left (x \right )}}{m^{2}+2 m +1}\) | \(34\) |
parallelrisch | \(\frac {x \,x^{m} \ln \left (x \right ) m +x^{m} \ln \left (x \right ) x -x \,x^{m}}{m^{2}+2 m +1}\) | \(34\) |
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none
Time = 0.24 (sec) , antiderivative size = 25, normalized size of antiderivative = 0.96 \[ \int x^m \log (x) \, dx=\frac {{\left ({\left (m + 1\right )} x \log \left (x\right ) - x\right )} x^{m}}{m^{2} + 2 \, m + 1} \]
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Leaf count of result is larger than twice the leaf count of optimal. 56 vs. \(2 (20) = 40\).
Time = 0.28 (sec) , antiderivative size = 56, normalized size of antiderivative = 2.15 \[ \int x^m \log (x) \, dx=\begin {cases} \frac {m x x^{m} \log {\left (x \right )}}{m^{2} + 2 m + 1} + \frac {x x^{m} \log {\left (x \right )}}{m^{2} + 2 m + 1} - \frac {x x^{m}}{m^{2} + 2 m + 1} & \text {for}\: m \neq -1 \\\frac {\log {\left (x \right )}^{2}}{2} & \text {otherwise} \end {cases} \]
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none
Time = 0.20 (sec) , antiderivative size = 26, normalized size of antiderivative = 1.00 \[ \int x^m \log (x) \, dx=\frac {x^{m + 1} \log \left (x\right )}{m + 1} - \frac {x^{m + 1}}{{\left (m + 1\right )}^{2}} \]
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\[ \int x^m \log (x) \, dx=\int { x^{m} \log \left (x\right ) \,d x } \]
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Time = 0.45 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.23 \[ \int x^m \log (x) \, dx=\left \{\begin {array}{cl} \frac {{\ln \left (x\right )}^2}{2} & \text {\ if\ \ }m=-1\\ \frac {x^{m+1}\,\left (\ln \left (x\right )\,\left (m+1\right )-1\right )}{{\left (m+1\right )}^2} & \text {\ if\ \ }m\neq -1 \end {array}\right . \]
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