Integrand size = 15, antiderivative size = 56 \[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\frac {e^{-c} \sqrt {\pi } \text {erf}(b x)^2}{8 b}+\frac {b e^c x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }} \]
[Out]
Time = 0.04 (sec) , antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {6548, 6511, 6508, 30} \[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\frac {b e^c x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}+\frac {\sqrt {\pi } e^{-c} \text {erf}(b x)^2}{8 b} \]
[In]
[Out]
Rule 30
Rule 6508
Rule 6511
Rule 6548
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \int e^{-c-b^2 x^2} \text {erf}(b x) \, dx+\frac {1}{2} \int e^{c+b^2 x^2} \text {erf}(b x) \, dx \\ & = \frac {b e^c x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}+\frac {\left (e^{-c} \sqrt {\pi }\right ) \text {Subst}(\int x \, dx,x,\text {erf}(b x))}{4 b} \\ & = \frac {e^{-c} \sqrt {\pi } \text {erf}(b x)^2}{8 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*}
Time = 0.43 (sec) , antiderivative size = 73, normalized size of antiderivative = 1.30 \[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\frac {-4 b^2 x^2 \, _2F_2\left (1,1;\frac {3}{2},2;-b^2 x^2\right ) (\cosh (c)+\sinh (c))+\pi \text {erf}(b x) (\text {erf}(b x) (\cosh (c)-\sinh (c))+2 \text {erfi}(b x) (\cosh (c)+\sinh (c)))}{8 b \sqrt {\pi }} \]
[In]
[Out]
\[\int \cosh \left (b^{2} x^{2}+c \right ) \operatorname {erf}\left (b x \right )d x\]
[In]
[Out]
\[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\int { \cosh \left (b^{2} x^{2} + c\right ) \operatorname {erf}\left (b x\right ) \,d x } \]
[In]
[Out]
\[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\int \cosh {\left (b^{2} x^{2} + c \right )} \operatorname {erf}{\left (b x \right )}\, dx \]
[In]
[Out]
\[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\int { \cosh \left (b^{2} x^{2} + c\right ) \operatorname {erf}\left (b x\right ) \,d x } \]
[In]
[Out]
\[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\int { \cosh \left (b^{2} x^{2} + c\right ) \operatorname {erf}\left (b x\right ) \,d x } \]
[In]
[Out]
Timed out. \[ \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx=\int \mathrm {cosh}\left (b^2\,x^2+c\right )\,\mathrm {erf}\left (b\,x\right ) \,d x \]
[In]
[Out]