Optimal. Leaf size=56 \[ \frac {b e^c x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}+\frac {\sqrt {\pi } e^{-c} \text {erf}(b x)^2}{8 b} \]
[Out]
________________________________________________________________________________________
Rubi [A] time = 0.05, antiderivative size = 56, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {6413, 6376, 6373, 30} \[ \frac {b e^c x^2 \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )}{2 \sqrt {\pi }}+\frac {\sqrt {\pi } e^{-c} \text {Erf}(b x)^2}{8 b} \]
Antiderivative was successfully verified.
[In]
[Out]
Rule 30
Rule 6373
Rule 6376
Rule 6413
Rubi steps
\begin {align*} \int \cosh \left (c+b^2 x^2\right ) \text {erf}(b x) \, dx &=\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 ) \operatorname {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*}
________________________________________________________________________________________
Mathematica [A] time = 0.30, size = 93, normalized size = 1.66 \[ \frac {4 b^2 x^2 \sinh (c) \, _2F_2\left (1,1;\frac {3}{2},2;b^2 x^2\right )-4 b^2 x^2 \cosh (c) \, _2F_2\left (1,1;\frac {3}{2},2;-b^2 x^2\right )+\pi \text {erf}(b x) (\text {erf}(b x) (\cosh (c)-\sinh (c))+2 \cosh (c) \text {erfi}(b x))}{8 \sqrt {\pi } b} \]
Antiderivative was successfully verified.
[In]
[Out]
________________________________________________________________________________________
fricas [F] time = 0.52, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\cosh \left (b^{2} x^{2} + c\right ) \operatorname {erf}\left (b x\right ), x\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \cosh \left (b^{2} x^{2} + c\right ) \operatorname {erf}\left (b x\right )\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maple [F] time = 0.04, size = 0, normalized size = 0.00 \[ \int \cosh \left (b^{2} x^{2}+c \right ) \erf \left (b x \right )\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ \frac {\sqrt {\pi } \operatorname {erf}\left (b x\right )^{2} e^{\left (-c\right )}}{8 \, b} + \frac {1}{2} \, \int \operatorname {erf}\left (b x\right ) e^{\left (b^{2} x^{2} + c\right )}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
mupad [F] time = 0.00, size = -1, normalized size = -0.02 \[ \int \mathrm {cosh}\left (b^2\,x^2+c\right )\,\mathrm {erf}\left (b\,x\right ) \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________
sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \cosh {\left (b^{2} x^{2} + c \right )} \operatorname {erf}{\left (b x \right )}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
[In]
[Out]
________________________________________________________________________________________