Optimal. Leaf size=77 \[ -\frac {b e^{-c} x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}-\frac {\sqrt {\pi } e^c \text {erfc}(b x)^2}{8 b}+\frac {\sqrt {\pi } e^{-c} \text {erfi}(b x)}{4 b} \]
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Rubi [A] time = 0.07, antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 6, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.375, Rules used = {6414, 6374, 30, 6377, 2204, 6376} \[ -\frac {b e^{-c} x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}-\frac {\sqrt {\pi } e^c \text {Erfc}(b x)^2}{8 b}+\frac {\sqrt {\pi } e^{-c} \text {Erfi}(b x)}{4 b} \]
Antiderivative was successfully verified.
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Rule 30
Rule 2204
Rule 6374
Rule 6376
Rule 6377
Rule 6414
Rubi steps
\begin {align*} \int \cosh \left (c-b^2 x^2\right ) \text {erfc}(b x) \, dx &=\frac {1}{2} \int e^{c-b^2 x^2} \text {erfc}(b x) \, dx+\frac {1}{2} \int e^{-c+b^2 x^2} \text {erfc}(b x) \, dx\\ &=\frac {1}{2} \int e^{-c+b^2 x^2} \, dx-\frac {1}{2} \int e^{-c+b^2 x^2} \text {erf}(b x) \, dx-\frac {\left (e^c \sqrt {\pi }\right ) \operatorname {Subst}(\int x \, dx,x,\text {erfc}(b x))}{4 b}\\ &=-\frac {e^c \sqrt {\pi } \text {erfc}(b x)^2}{8 b}+\frac {e^{-c} \sqrt {\pi } \text {erfi}(b x)}{4 b}-\frac {b e^{-c} x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}\\ \end {align*}
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Mathematica [A] time = 0.13, size = 117, normalized size = 1.52 \[ \frac {4 b^2 x^2 \sinh (c) \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )+4 b^2 x^2 \cosh (c) \, _2F_2\left (1,1;\frac {3}{2},2;-b^2 x^2\right )-\pi \left (2 \text {erf}(b x) (\cosh (c) \text {erfi}(b x)-\sinh (c)-\cosh (c))+\text {erf}(b x)^2 (\sinh (c)+\cosh (c))+2 \text {erfi}(b x) (\sinh (c)-\cosh (c))\right )}{8 \sqrt {\pi } b} \]
Warning: Unable to verify antiderivative.
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fricas [F] time = 0.50, size = 0, normalized size = 0.00 \[ {\rm integral}\left (-\cosh \left (b^{2} x^{2} - c\right ) \operatorname {erf}\left (b x\right ) + \cosh \left (b^{2} x^{2} - c\right ), x\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \cosh \left (b^{2} x^{2} - c\right ) \operatorname {erfc}\left (b x\right )\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.28, size = 0, normalized size = 0.00 \[ \int \cosh \left (b^{2} x^{2}-c \right ) \mathrm {erfc}\left (b x \right )\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \cosh \left (b^{2} x^{2} - c\right ) \operatorname {erfc}\left (b x\right )\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int \mathrm {cosh}\left (c-b^2\,x^2\right )\,\mathrm {erfc}\left (b\,x\right ) \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \cosh {\left (b^{2} x^{2} - c \right )} \operatorname {erfc}{\left (b x \right )}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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