Optimal. Leaf size=91 \[ \frac{i b e^{i c} x^2 \text{HypergeometricPFQ}\left (\{1,1\},\left \{\frac{3}{2},2\right \},b^2 x^2\right )}{2 \sqrt{\pi }}-\frac{i \sqrt{\pi } e^{-i c} \text{Erfc}(b x)^2}{8 b}-\frac{i \sqrt{\pi } e^{i c} \text{Erfi}(b x)}{4 b} \]
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Rubi [A] time = 0.0754201, antiderivative size = 91, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 6, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {6405, 6374, 30, 6377, 2204, 6376} \[ \frac{i b e^{i c} x^2 \, _2F_2\left (1,1;\frac{3}{2},2;b^2 x^2\right )}{2 \sqrt{\pi }}-\frac{i \sqrt{\pi } e^{-i c} \text{Erfc}(b x)^2}{8 b}-\frac{i \sqrt{\pi } e^{i c} \text{Erfi}(b x)}{4 b} \]
Antiderivative was successfully verified.
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Rule 6405
Rule 6374
Rule 30
Rule 6377
Rule 2204
Rule 6376
Rubi steps
\begin{align*} \int \text{erfc}(b x) \sin \left (c-i b^2 x^2\right ) \, dx &=\frac{1}{2} i \int e^{-i c-b^2 x^2} \text{erfc}(b x) \, dx-\frac{1}{2} i \int e^{i c+b^2 x^2} \text{erfc}(b x) \, dx\\ &=-\left (\frac{1}{2} i \int e^{i c+b^2 x^2} \, dx\right )+\frac{1}{2} i \int e^{i c+b^2 x^2} \text{erf}(b x) \, dx-\frac{\left (i e^{-i c} \sqrt{\pi }\right ) \operatorname{Subst}(\int x \, dx,x,\text{erfc}(b x))}{4 b}\\ &=-\frac{i e^{-i c} \sqrt{\pi } \text{erfc}(b x)^2}{8 b}-\frac{i e^{i c} \sqrt{\pi } \text{erfi}(b x)}{4 b}+\frac{i b e^{i c} x^2 \, _2F_2\left (1,1;\frac{3}{2},2;b^2 x^2\right )}{2 \sqrt{\pi }}\\ \end{align*}
Mathematica [A] time = 0.437127, size = 101, normalized size = 1.11 \[ \frac{1}{2} i \left (\frac{b x^2 (\cos (c)+i \sin (c)) \text{HypergeometricPFQ}\left (\{1,1\},\left \{\frac{3}{2},2\right \},b^2 x^2\right )}{\sqrt{\pi }}-\frac{\sqrt{\pi } \left (\text{Erf}(b x)^2 (\cos (c)-i \sin (c))-2 \text{Erf}(b x) (\cos (c)-i \sin (c))+2 \text{Erfi}(b x) (\cos (c)+i \sin (c))\right )}{4 b}\right ) \]
Warning: Unable to verify antiderivative.
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Maple [F] time = 0.19, size = 0, normalized size = 0. \begin{align*} \int -{\it erfc} \left ( bx \right ) \sin \left ( -c+i{b}^{2}{x}^{2} \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{i \, \sqrt{\pi } \cos \left (c\right ) \operatorname{erfc}\left (b x\right )^{2}}{8 \, b} - \frac{\sqrt{\pi } \operatorname{erfc}\left (b x\right )^{2} \sin \left (c\right )}{8 \, b} - \frac{1}{2} i \, \cos \left (c\right ) \int \operatorname{erfc}\left (b x\right ) e^{\left (b^{2} x^{2}\right )}\,{d x} + \frac{1}{2} \, \int \operatorname{erfc}\left (b x\right ) e^{\left (b^{2} x^{2}\right )}\,{d x} \sin \left (c\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (\frac{1}{2} \,{\left ({\left (-i \, \operatorname{erf}\left (b x\right ) + i\right )} e^{\left (-2 \, b^{2} x^{2} - 2 i \, c\right )} + i \, \operatorname{erf}\left (b x\right ) - i\right )} e^{\left (b^{2} x^{2} + i \, c\right )}, x\right ) \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 \sin{\left (i b^{2} x^{2} - c \right )} \operatorname{erfc}{\left (b x \right )}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int -\operatorname{erfc}\left (b x\right ) \sin \left (i \, b^{2} x^{2} - c\right )\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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