Integrand size = 12, antiderivative size = 81 \[ \int e^{x^2} \sin (a+b x) \, dx=\frac {1}{4} i e^{-i a+\frac {b^2}{4}} \sqrt {\pi } \text {erfi}\left (\frac {1}{2} (-i b+2 x)\right )-\frac {1}{4} i e^{i a+\frac {b^2}{4}} \sqrt {\pi } \text {erfi}\left (\frac {1}{2} (i b+2 x)\right ) \]
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Time = 0.06 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.250, Rules used = {4560, 2266, 2235} \[ \int e^{x^2} \sin (a+b x) \, dx=\frac {1}{4} i \sqrt {\pi } e^{\frac {b^2}{4}-i a} \text {erfi}\left (\frac {1}{2} (2 x-i b)\right )-\frac {1}{4} i \sqrt {\pi } e^{\frac {b^2}{4}+i a} \text {erfi}\left (\frac {1}{2} (2 x+i b)\right ) \]
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Rule 2235
Rule 2266
Rule 4560
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {1}{2} i e^{-i a-i b x+x^2}-\frac {1}{2} i e^{i a+i b x+x^2}\right ) \, dx \\ & = \frac {1}{2} i \int e^{-i a-i b x+x^2} \, dx-\frac {1}{2} i \int e^{i a+i b x+x^2} \, dx \\ & = \frac {1}{2} \left (i e^{-i a+\frac {b^2}{4}}\right ) \int e^{\frac {1}{4} (-i b+2 x)^2} \, dx-\frac {1}{2} \left (i e^{i a+\frac {b^2}{4}}\right ) \int e^{\frac {1}{4} (i b+2 x)^2} \, dx \\ & = \frac {1}{4} i e^{-i a+\frac {b^2}{4}} \sqrt {\pi } \text {erfi}\left (\frac {1}{2} (-i b+2 x)\right )-\frac {1}{4} i e^{i a+\frac {b^2}{4}} \sqrt {\pi } \text {erfi}\left (\frac {1}{2} (i b+2 x)\right ) \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.00 \[ \int e^{x^2} \sin (a+b x) \, dx=\frac {1}{4} e^{\frac {b^2}{4}} \sqrt {\pi } \left (\cos (a) \text {erf}\left (\frac {b}{2}-i x\right )+\cos (a) \text {erf}\left (\frac {b}{2}+i x\right )+\left (\text {erfi}\left (\frac {1}{2} (-i b+2 x)\right )+\text {erfi}\left (\frac {1}{2} (i b+2 x)\right )\right ) \sin (a)\right ) \]
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Time = 0.18 (sec) , antiderivative size = 52, normalized size of antiderivative = 0.64
method | result | size |
risch | \(\frac {\sqrt {\pi }\, {\mathrm e}^{\frac {b^{2}}{4}} {\mathrm e}^{i a} \operatorname {erf}\left (-i x +\frac {b}{2}\right )}{4}+\frac {\sqrt {\pi }\, {\mathrm e}^{\frac {b^{2}}{4}} {\mathrm e}^{-i a} \operatorname {erf}\left (i x +\frac {b}{2}\right )}{4}\) | \(52\) |
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Time = 0.24 (sec) , antiderivative size = 45, normalized size of antiderivative = 0.56 \[ \int e^{x^2} \sin (a+b x) \, dx=-\frac {1}{4} \, \sqrt {\pi } {\left (\operatorname {erf}\left (-\frac {1}{2} \, b + i \, x\right ) e^{\left (\frac {1}{4} \, b^{2} + i \, a\right )} - \operatorname {erf}\left (\frac {1}{2} \, b + i \, x\right ) e^{\left (\frac {1}{4} \, b^{2} - i \, a\right )}\right )} \]
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\[ \int e^{x^2} \sin (a+b x) \, dx=\int e^{x^{2}} \sin {\left (a + b x \right )}\, dx \]
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Time = 0.21 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.63 \[ \int e^{x^2} \sin (a+b x) \, dx=\frac {1}{4} \, \sqrt {\pi } {\left ({\left (\cos \left (a\right ) - i \, \sin \left (a\right )\right )} \operatorname {erf}\left (\frac {1}{2} \, b + i \, x\right ) e^{\left (\frac {1}{4} \, b^{2}\right )} - {\left (\cos \left (a\right ) + i \, \sin \left (a\right )\right )} \operatorname {erf}\left (-\frac {1}{2} \, b + i \, x\right ) e^{\left (\frac {1}{4} \, b^{2}\right )}\right )} \]
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\[ \int e^{x^2} \sin (a+b x) \, dx=\int { e^{\left (x^{2}\right )} \sin \left (b x + a\right ) \,d x } \]
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Timed out. \[ \int e^{x^2} \sin (a+b x) \, dx=\int {\mathrm {e}}^{x^2}\,\sin \left (a+b\,x\right ) \,d x \]
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