Optimal. Leaf size=110 \[ \frac{1}{4} \sqrt{\pi } f^{a-\frac{1}{2}} e^{d-\frac{b^2 \log ^2(f)}{4 f}} \text{Erfi}\left (\frac{b \log (f)+2 f x}{2 \sqrt{f}}\right )-\frac{1}{4} \sqrt{\pi } f^{a-\frac{1}{2}} e^{\frac{b^2 \log ^2(f)}{4 f}-d} \text{Erf}\left (\frac{2 f x-b \log (f)}{2 \sqrt{f}}\right ) \]
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Rubi [A] time = 0.154013, antiderivative size = 110, normalized size of antiderivative = 1., number of steps used = 8, number of rules used = 5, integrand size = 16, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.312, Rules used = {5512, 2287, 2234, 2205, 2204} \[ \frac{1}{4} \sqrt{\pi } f^{a-\frac{1}{2}} e^{d-\frac{b^2 \log ^2(f)}{4 f}} \text{Erfi}\left (\frac{b \log (f)+2 f x}{2 \sqrt{f}}\right )-\frac{1}{4} \sqrt{\pi } f^{a-\frac{1}{2}} e^{\frac{b^2 \log ^2(f)}{4 f}-d} \text{Erf}\left (\frac{2 f x-b \log (f)}{2 \sqrt{f}}\right ) \]
Antiderivative was successfully verified.
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Rule 5512
Rule 2287
Rule 2234
Rule 2205
Rule 2204
Rubi steps
\begin{align*} \int f^{a+b x} \sinh \left (d+f x^2\right ) \, dx &=\int \left (-\frac{1}{2} e^{-d-f x^2} f^{a+b x}+\frac{1}{2} e^{d+f x^2} f^{a+b x}\right ) \, dx\\ &=-\left (\frac{1}{2} \int e^{-d-f x^2} f^{a+b x} \, dx\right )+\frac{1}{2} \int e^{d+f x^2} f^{a+b x} \, dx\\ &=-\left (\frac{1}{2} \int e^{-d-f x^2+a \log (f)+b x \log (f)} \, dx\right )+\frac{1}{2} \int e^{d+f x^2+a \log (f)+b x \log (f)} \, dx\\ &=\frac{1}{2} \left (e^{d-\frac{b^2 \log ^2(f)}{4 f}} f^a\right ) \int e^{\frac{(2 f x+b \log (f))^2}{4 f}} \, dx-\frac{1}{2} \left (e^{-d+\frac{b^2 \log ^2(f)}{4 f}} f^a\right ) \int e^{-\frac{(-2 f x+b \log (f))^2}{4 f}} \, dx\\ &=-\frac{1}{4} e^{-d+\frac{b^2 \log ^2(f)}{4 f}} f^{-\frac{1}{2}+a} \sqrt{\pi } \text{erf}\left (\frac{2 f x-b \log (f)}{2 \sqrt{f}}\right )+\frac{1}{4} e^{d-\frac{b^2 \log ^2(f)}{4 f}} f^{-\frac{1}{2}+a} \sqrt{\pi } \text{erfi}\left (\frac{2 f x+b \log (f)}{2 \sqrt{f}}\right )\\ \end{align*}
Mathematica [A] time = 0.138009, size = 103, normalized size = 0.94 \[ \frac{1}{4} \sqrt{\pi } f^{a-\frac{1}{2}} e^{-\frac{b^2 \log ^2(f)}{4 f}} \left ((\sinh (d)+\cosh (d)) \text{Erfi}\left (\frac{b \log (f)+2 f x}{2 \sqrt{f}}\right )-e^{\frac{b^2 \log ^2(f)}{2 f}} (\cosh (d)-\sinh (d)) \text{Erf}\left (\frac{2 f x-b \log (f)}{2 \sqrt{f}}\right )\right ) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.134, size = 100, normalized size = 0.9 \begin{align*} -{\frac{\sqrt{\pi }{f}^{a}}{4}{{\rm e}^{-{\frac{ \left ( \ln \left ( f \right ) \right ) ^{2}{b}^{2}-4\,df}{4\,f}}}}{\it Erf} \left ( -\sqrt{-f}x+{\frac{b\ln \left ( f \right ) }{2}{\frac{1}{\sqrt{-f}}}} \right ){\frac{1}{\sqrt{-f}}}}+{\frac{\sqrt{\pi }{f}^{a}}{4}{{\rm e}^{{\frac{ \left ( \ln \left ( f \right ) \right ) ^{2}{b}^{2}-4\,df}{4\,f}}}}{\it Erf} \left ( -\sqrt{f}x+{\frac{b\ln \left ( f \right ) }{2}{\frac{1}{\sqrt{f}}}} \right ){\frac{1}{\sqrt{f}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 1.06015, size = 122, normalized size = 1.11 \begin{align*} -\frac{1}{4} \, \sqrt{\pi } f^{a - \frac{1}{2}} \operatorname{erf}\left (\sqrt{f} x - \frac{b \log \left (f\right )}{2 \, \sqrt{f}}\right ) e^{\left (\frac{b^{2} \log \left (f\right )^{2}}{4 \, f} - d\right )} + \frac{\sqrt{\pi } f^{a} \operatorname{erf}\left (\sqrt{-f} x - \frac{b \log \left (f\right )}{2 \, \sqrt{-f}}\right ) e^{\left (-\frac{b^{2} \log \left (f\right )^{2}}{4 \, f} + d\right )}}{4 \, \sqrt{-f}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] time = 1.94221, size = 591, normalized size = 5.37 \begin{align*} -\frac{\sqrt{\pi } \sqrt{-f} \cosh \left (\frac{b^{2} \log \left (f\right )^{2} - 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right ) \operatorname{erf}\left (\frac{{\left (2 \, f x + b \log \left (f\right )\right )} \sqrt{-f}}{2 \, f}\right ) - \sqrt{\pi } \sqrt{f} \cosh \left (\frac{b^{2} \log \left (f\right )^{2} + 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right ) \operatorname{erf}\left (-\frac{2 \, f x - b \log \left (f\right )}{2 \, \sqrt{f}}\right ) - \sqrt{\pi } \sqrt{f} \operatorname{erf}\left (-\frac{2 \, f x - b \log \left (f\right )}{2 \, \sqrt{f}}\right ) \sinh \left (\frac{b^{2} \log \left (f\right )^{2} + 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right ) - \sqrt{\pi } \sqrt{-f} \operatorname{erf}\left (\frac{{\left (2 \, f x + b \log \left (f\right )\right )} \sqrt{-f}}{2 \, f}\right ) \sinh \left (\frac{b^{2} \log \left (f\right )^{2} - 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right )}{4 \, f} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int f^{a + b x} \sinh{\left (d + f x^{2} \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.21908, size = 143, normalized size = 1.3 \begin{align*} \frac{\sqrt{\pi } \operatorname{erf}\left (-\frac{1}{2} \, \sqrt{f}{\left (2 \, x - \frac{b \log \left (f\right )}{f}\right )}\right ) e^{\left (\frac{b^{2} \log \left (f\right )^{2} + 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right )}}{4 \, \sqrt{f}} - \frac{\sqrt{\pi } \operatorname{erf}\left (-\frac{1}{2} \, \sqrt{-f}{\left (2 \, x + \frac{b \log \left (f\right )}{f}\right )}\right ) e^{\left (-\frac{b^{2} \log \left (f\right )^{2} - 4 \, a f \log \left (f\right ) - 4 \, d f}{4 \, f}\right )}}{4 \, \sqrt{-f}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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