Optimal. Leaf size=125 \[ \frac{x (e x)^m \left (c x^n\right )^{-\frac{m+1}{n}} \exp \left (\frac{(m+1) \left (-4 a b d^2 n+m+1\right )}{4 b^2 d^2 n^2}\right ) \text{Erf}\left (\frac{-2 a b d^2 n-2 b^2 d^2 n \log \left (c x^n\right )+m+1}{2 b d n}\right )}{m+1}+\frac{(e x)^{m+1} \text{Erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (m+1)} \]
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Rubi [A] time = 0.312641, antiderivative size = 125, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 8, integrand size = 19, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.421, Rules used = {6401, 2278, 2274, 15, 20, 2276, 2234, 2205} \[ \frac{x (e x)^m \left (c x^n\right )^{-\frac{m+1}{n}} \exp \left (\frac{(m+1) \left (-4 a b d^2 n+m+1\right )}{4 b^2 d^2 n^2}\right ) \text{Erf}\left (\frac{-2 a b d^2 n-2 b^2 d^2 n \log \left (c x^n\right )+m+1}{2 b d n}\right )}{m+1}+\frac{(e x)^{m+1} \text{Erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (m+1)} \]
Antiderivative was successfully verified.
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Rule 6401
Rule 2278
Rule 2274
Rule 15
Rule 20
Rule 2276
Rule 2234
Rule 2205
Rubi steps
\begin{align*} \int (e x)^m \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right ) \, dx &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{(2 b d n) \int e^{-d^2 \left (a+b \log \left (c x^n\right )\right )^2} (e x)^m \, dx}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{(2 b d n) \int \exp \left (-a^2 d^2-2 a b d^2 \log \left (c x^n\right )-b^2 d^2 \log ^2\left (c x^n\right )\right ) (e x)^m \, dx}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{(2 b d n) \int e^{-a^2 d^2-b^2 d^2 \log ^2\left (c x^n\right )} (e x)^m \left (c x^n\right )^{-2 a b d^2} \, dx}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{\left (2 b d n x^{2 a b d^2 n} \left (c x^n\right )^{-2 a b d^2}\right ) \int e^{-a^2 d^2-b^2 d^2 \log ^2\left (c x^n\right )} x^{-2 a b d^2 n} (e x)^m \, dx}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{\left (2 b d n x^{-m+2 a b d^2 n} (e x)^m \left (c x^n\right )^{-2 a b d^2}\right ) \int e^{-a^2 d^2-b^2 d^2 \log ^2\left (c x^n\right )} x^{m-2 a b d^2 n} \, dx}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{\left (2 b d x (e x)^m \left (c x^n\right )^{-2 a b d^2-\frac{1+m-2 a b d^2 n}{n}}\right ) \operatorname{Subst}\left (\int \exp \left (-a^2 d^2+\frac{\left (1+m-2 a b d^2 n\right ) x}{n}-b^2 d^2 x^2\right ) \, dx,x,\log \left (c x^n\right )\right )}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}-\frac{\left (2 b d \exp \left (\frac{(1+m) \left (1+m-4 a b d^2 n\right )}{4 b^2 d^2 n^2}\right ) x (e x)^m \left (c x^n\right )^{-2 a b d^2-\frac{1+m-2 a b d^2 n}{n}}\right ) \operatorname{Subst}\left (\int \exp \left (-\frac{\left (\frac{1+m-2 a b d^2 n}{n}-2 b^2 d^2 x\right )^2}{4 b^2 d^2}\right ) \, dx,x,\log \left (c x^n\right )\right )}{(1+m) \sqrt{\pi }}\\ &=\frac{(e x)^{1+m} \text{erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )}{e (1+m)}+\frac{\exp \left (\frac{(1+m) \left (1+m-4 a b d^2 n\right )}{4 b^2 d^2 n^2}\right ) x (e x)^m \left (c x^n\right )^{-\frac{1+m}{n}} \text{erf}\left (\frac{1+m-2 a b d^2 n-2 b^2 d^2 n \log \left (c x^n\right )}{2 b d n}\right )}{1+m}\\ \end{align*}
Mathematica [A] time = 0.509761, size = 127, normalized size = 1.02 \[ \frac{(e x)^m \left (x \text{Erf}\left (d \left (a+b \log \left (c x^n\right )\right )\right )-x^{-m} \text{Erf}\left (a d-\frac{-2 b^2 d^2 n \log \left (c x^n\right )+m+1}{2 b d n}\right ) \exp \left (\frac{(m+1) \left (-4 a b d^2 n-4 b^2 d^2 n \log \left (c x^n\right )+4 b^2 d^2 n^2 \log (x)+m+1\right )}{4 b^2 d^2 n^2}\right )\right )}{m+1} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.096, size = 0, normalized size = 0. \begin{align*} \int \left ( ex \right ) ^{m}{\it Erf} \left ( d \left ( a+b\ln \left ( c{x}^{n} \right ) \right ) \right ) \, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \frac{e^{m} x x^{m} \operatorname{erf}\left (b d \log \left (x^{n}\right ) +{\left (b \log \left (c\right ) + a\right )} d\right )}{m + 1} - \frac{-\frac{\sqrt{\pi } c^{2 \, a b d^{2}} e^{m} \operatorname{erf}\left (-b d n \log \left (x\right ) - b d \log \left (c\right ) - a d + \frac{m}{2 \, b d n} + \frac{1}{2 \, b d n}\right ) e^{\left (-\frac{a m}{b n} - \frac{a}{b n} + \frac{m^{2}}{4 \, b^{2} d^{2} n^{2}} + \frac{m}{2 \, b^{2} d^{2} n^{2}} + \frac{1}{4 \, b^{2} d^{2} n^{2}}\right )}}{c^{\frac{m}{n}} c^{\left (\frac{1}{n}\right )}}}{\sqrt{\pi } c^{2 \, a b d^{2}}{\left (m + 1\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 2.87312, size = 427, normalized size = 3.42 \begin{align*} \frac{x \operatorname{erf}\left (b d \log \left (c x^{n}\right ) + a d\right ) e^{\left (m \log \left (e\right ) + m \log \left (x\right )\right )} - \sqrt{b^{2} d^{2} n^{2}} \operatorname{erf}\left (\frac{{\left (2 \, b^{2} d^{2} n^{2} \log \left (x\right ) + 2 \, b^{2} d^{2} n \log \left (c\right ) + 2 \, a b d^{2} n - m - 1\right )} \sqrt{b^{2} d^{2} n^{2}}}{2 \, b^{2} d^{2} n^{2}}\right ) e^{\left (\frac{4 \, b^{2} d^{2} m n^{2} \log \left (e\right ) - 4 \,{\left (b^{2} d^{2} m + b^{2} d^{2}\right )} n \log \left (c\right ) + m^{2} - 4 \,{\left (a b d^{2} m + a b d^{2}\right )} n + 2 \, m + 1}{4 \, b^{2} d^{2} n^{2}}\right )}}{m + 1} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.62525, size = 211, normalized size = 1.69 \begin{align*} \frac{x^{m + 1} \operatorname{erf}\left (b d n \log \left (x\right ) + b d \log \left (c\right ) + a d\right ) e^{m}}{m + 1} + \frac{\pi \operatorname{erf}\left (-b d n \log \left (x\right ) - b d \log \left (c\right ) - a d + \frac{m}{2 \, b d n} + \frac{1}{2 \, b d n}\right ) e^{\left (m - \frac{a m}{b n} - \frac{a}{b n} + \frac{m^{2}}{4 \, b^{2} d^{2} n^{2}} + \frac{m}{2 \, b^{2} d^{2} n^{2}} + \frac{1}{4 \, b^{2} d^{2} n^{2}}\right )}}{{\left (\pi + \pi m\right )} c^{\frac{m}{n}} c^{\left (\frac{1}{n}\right )}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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