\(\int \text {Chi}(b x) \sinh (b x) \, dx\) [117]

Optimal result

Integrand size = 9, antiderivative size = 34 \[ \int \text {Chi}(b x) \sinh (b x) \, dx=\frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\text {Chi}(2 b x)}{2 b}-\frac {\log (x)}{2 b} \]

[Out]

-1/2*Chi(2*b*x)/b+Chi(b*x)*cosh(b*x)/b-1/2*ln(x)/b

Rubi [A] (verified)

Time = 0.04 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.444, Rules used = {6682, 12, 3393, 3382} \[ \int \text {Chi}(b x) \sinh (b x) \, dx=-\frac {\text {Chi}(2 b x)}{2 b}+\frac {\text {Chi}(b x) \cosh (b x)}{b}-\frac {\log (x)}{2 b} \]

[In]

Int[CoshIntegral[b*x]*Sinh[b*x],x]

[Out]

(Cosh[b*x]*CoshIntegral[b*x])/b - CoshIntegral[2*b*x]/(2*b) - Log[x]/(2*b)

Rule 12

Int[(a_)*(u_), x_Symbol] :> Dist[a, Int[u, x], x] /; FreeQ[a, x] &&  !MatchQ[u, (b_)*(v_) /; FreeQ[b, x]]

Rule 3382

Int[sin[(e_.) + (Complex[0, fz_])*(f_.)*(x_)]/((c_.) + (d_.)*(x_)), x_Symbol] :> Simp[CoshIntegral[c*f*(fz/d)
+ f*fz*x]/d, x] /; FreeQ[{c, d, e, f, fz}, x] && EqQ[d*(e - Pi/2) - c*f*fz*I, 0]

Rule 3393

Int[((c_.) + (d_.)*(x_))^(m_)*sin[(e_.) + (f_.)*(x_)]^(n_), x_Symbol] :> Int[ExpandTrigReduce[(c + d*x)^m, Sin
[e + f*x]^n, x], x] /; FreeQ[{c, d, e, f, m}, x] && IGtQ[n, 1] && ( !RationalQ[m] || (GeQ[m, -1] && LtQ[m, 1])
)

Rule 6682

Int[CoshIntegral[(c_.) + (d_.)*(x_)]*Sinh[(a_.) + (b_.)*(x_)], x_Symbol] :> Simp[Cosh[a + b*x]*(CoshIntegral[c
+ d*x]/b), x] - Dist[d/b, Int[Cosh[a + b*x]*(Cosh[c + d*x]/(c + d*x)), x], x] /; FreeQ[{a, b, c, d}, x]

Rubi steps \begin{align*} \text {integral}& = \frac {\cosh (b x) \text {Chi}(b x)}{b}-\int \frac {\cosh ^2(b x)}{b x} \, dx \\ & = \frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\int \frac {\cosh ^2(b x)}{x} \, dx}{b} \\ & = \frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\int \left (\frac {1}{2 x}+\frac {\cosh (2 b x)}{2 x}\right ) \, dx}{b} \\ & = \frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\log (x)}{2 b}-\frac {\int \frac {\cosh (2 b x)}{x} \, dx}{2 b} \\ & = \frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\text {Chi}(2 b x)}{2 b}-\frac {\log (x)}{2 b} \\ \end{align*}

Mathematica [A] (verified)

Time = 0.01 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.06 \[ \int \text {Chi}(b x) \sinh (b x) \, dx=\frac {\cosh (b x) \text {Chi}(b x)}{b}-\frac {\text {Chi}(2 b x)}{2 b}-\frac {\log (b x)}{2 b} \]

[In]

Integrate[CoshIntegral[b*x]*Sinh[b*x],x]

[Out]

(Cosh[b*x]*CoshIntegral[b*x])/b - CoshIntegral[2*b*x]/(2*b) - Log[b*x]/(2*b)

Maple [A] (verified)

Time = 0.61 (sec) , antiderivative size = 28, normalized size of antiderivative = 0.82

method	result	size
derivativedivides	\(\frac {\operatorname {Chi}\left (b x \right ) \cosh \left (b x \right )-\frac {\ln \left (b x \right )}{2}-\frac {\operatorname {Chi}\left (2 b x \right )}{2}}{b}\)	\(28\)
default	\(\frac {\operatorname {Chi}\left (b x \right ) \cosh \left (b x \right )-\frac {\ln \left (b x \right )}{2}-\frac {\operatorname {Chi}\left (2 b x \right )}{2}}{b}\)	\(28\)

[In]

int(Chi(b*x)*sinh(b*x),x,method=_RETURNVERBOSE)

[Out]

1/b*(Chi(b*x)*cosh(b*x)-1/2*ln(b*x)-1/2*Chi(2*b*x))

Fricas [F]

\[ \int \text {Chi}(b x) \sinh (b x) \, dx=\int { {\rm Chi}\left (b x\right ) \sinh \left (b x\right ) \,d x } \]

[In]

integrate(Chi(b*x)*sinh(b*x),x, algorithm="fricas")

[Out]

integral(cosh_integral(b*x)*sinh(b*x), x)

Sympy [F]

\[ \int \text {Chi}(b x) \sinh (b x) \, dx=\int \sinh {\left (b x \right )} \operatorname {Chi}\left (b x\right )\, dx \]

[In]

integrate(Chi(b*x)*sinh(b*x),x)

[Out]

Integral(sinh(b*x)*Chi(b*x), x)

Maxima [F]

\[ \int \text {Chi}(b x) \sinh (b x) \, dx=\int { {\rm Chi}\left (b x\right ) \sinh \left (b x\right ) \,d x } \]

[In]

integrate(Chi(b*x)*sinh(b*x),x, algorithm="maxima")

[Out]

integrate(Chi(b*x)*sinh(b*x), x)

Giac [F]

\[ \int \text {Chi}(b x) \sinh (b x) \, dx=\int { {\rm Chi}\left (b x\right ) \sinh \left (b x\right ) \,d x } \]

[In]

integrate(Chi(b*x)*sinh(b*x),x, algorithm="giac")

[Out]

integrate(Chi(b*x)*sinh(b*x), x)

Mupad [F(-1)]

Timed out. \[ \int \text {Chi}(b x) \sinh (b x) \, dx=\int \mathrm {coshint}\left (b\,x\right )\,\mathrm {sinh}\left (b\,x\right ) \,d x \]

[In]

int(coshint(b*x)*sinh(b*x),x)

[Out]

int(coshint(b*x)*sinh(b*x), x)