3.2 \(\int x^3 \text {Shi}(b x) \, dx\)

Optimal. Leaf size=63 \[ \frac {3 \sinh (b x)}{2 b^4}-\frac {3 x \cosh (b x)}{2 b^3}+\frac {3 x^2 \sinh (b x)}{4 b^2}+\frac {1}{4} x^4 \text {Shi}(b x)-\frac {x^3 \cosh (b x)}{4 b} \]

[Out]

-3/2*x*cosh(b*x)/b^3-1/4*x^3*cosh(b*x)/b+1/4*x^4*Shi(b*x)+3/2*sinh(b*x)/b^4+3/4*x^2*sinh(b*x)/b^2

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Rubi [A]  time = 0.08, antiderivative size = 63, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 4, integrand size = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.500, Rules used = {6532, 12, 3296, 2637} \[ \frac {3 x^2 \sinh (b x)}{4 b^2}+\frac {3 \sinh (b x)}{2 b^4}-\frac {3 x \cosh (b x)}{2 b^3}+\frac {1}{4} x^4 \text {Shi}(b x)-\frac {x^3 \cosh (b x)}{4 b} \]

Antiderivative was successfully verified.

[In]

Int[x^3*SinhIntegral[b*x],x]

[Out]

(-3*x*Cosh[b*x])/(2*b^3) - (x^3*Cosh[b*x])/(4*b) + (3*Sinh[b*x])/(2*b^4) + (3*x^2*Sinh[b*x])/(4*b^2) + (x^4*Si
nhIntegral[b*x])/4

Rule 12

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

Rule 2637

Int[sin[Pi/2 + (c_.) + (d_.)*(x_)], x_Symbol] :> Simp[Sin[c + d*x]/d, x] /; FreeQ[{c, d}, x]

Rule 3296

Int[((c_.) + (d_.)*(x_))^(m_.)*sin[(e_.) + (f_.)*(x_)], x_Symbol] :> -Simp[((c + d*x)^m*Cos[e + f*x])/f, x] +
Dist[(d*m)/f, Int[(c + d*x)^(m - 1)*Cos[e + f*x], x], x] /; FreeQ[{c, d, e, f}, x] && GtQ[m, 0]

Rule 6532

Int[((c_.) + (d_.)*(x_))^(m_.)*SinhIntegral[(a_.) + (b_.)*(x_)], x_Symbol] :> Simp[((c + d*x)^(m + 1)*SinhInte
gral[a + b*x])/(d*(m + 1)), x] - Dist[b/(d*(m + 1)), Int[((c + d*x)^(m + 1)*Sinh[a + b*x])/(a + b*x), x], x] /
; FreeQ[{a, b, c, d, m}, x] && NeQ[m, -1]

Rubi steps

\begin {align*} \int x^3 \text {Shi}(b x) \, dx &=\frac {1}{4} x^4 \text {Shi}(b x)-\frac {1}{4} b \int \frac {x^3 \sinh (b x)}{b} \, dx\\ &=\frac {1}{4} x^4 \text {Shi}(b x)-\frac {1}{4} \int x^3 \sinh (b x) \, dx\\ &=-\frac {x^3 \cosh (b x)}{4 b}+\frac {1}{4} x^4 \text {Shi}(b x)+\frac {3 \int x^2 \cosh (b x) \, dx}{4 b}\\ &=-\frac {x^3 \cosh (b x)}{4 b}+\frac {3 x^2 \sinh (b x)}{4 b^2}+\frac {1}{4} x^4 \text {Shi}(b x)-\frac {3 \int x \sinh (b x) \, dx}{2 b^2}\\ &=-\frac {3 x \cosh (b x)}{2 b^3}-\frac {x^3 \cosh (b x)}{4 b}+\frac {3 x^2 \sinh (b x)}{4 b^2}+\frac {1}{4} x^4 \text {Shi}(b x)+\frac {3 \int \cosh (b x) \, dx}{2 b^3}\\ &=-\frac {3 x \cosh (b x)}{2 b^3}-\frac {x^3 \cosh (b x)}{4 b}+\frac {3 \sinh (b x)}{2 b^4}+\frac {3 x^2 \sinh (b x)}{4 b^2}+\frac {1}{4} x^4 \text {Shi}(b x)\\ \end {align*}

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Mathematica [A]  time = 0.03, size = 53, normalized size = 0.84 \[ \frac {3 \left (b^2 x^2+2\right ) \sinh (b x)}{4 b^4}-\frac {x \left (b^2 x^2+6\right ) \cosh (b x)}{4 b^3}+\frac {1}{4} x^4 \text {Shi}(b x) \]

Antiderivative was successfully verified.

[In]

Integrate[x^3*SinhIntegral[b*x],x]

[Out]

-1/4*(x*(6 + b^2*x^2)*Cosh[b*x])/b^3 + (3*(2 + b^2*x^2)*Sinh[b*x])/(4*b^4) + (x^4*SinhIntegral[b*x])/4

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fricas [F]  time = 1.41, size = 0, normalized size = 0.00 \[ {\rm integral}\left (x^{3} \operatorname {Shi}\left (b x\right ), x\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*Shi(b*x),x, algorithm="fricas")

[Out]

integral(x^3*sinh_integral(b*x), x)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int x^{3} {\rm Shi}\left (b x\right )\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*Shi(b*x),x, algorithm="giac")

[Out]

integrate(x^3*Shi(b*x), x)

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maple [A]  time = 0.02, size = 56, normalized size = 0.89 \[ \frac {\frac {b^{4} x^{4} \Shi \left (b x \right )}{4}-\frac {b^{3} x^{3} \cosh \left (b x \right )}{4}+\frac {3 b^{2} x^{2} \sinh \left (b x \right )}{4}-\frac {3 b x \cosh \left (b x \right )}{2}+\frac {3 \sinh \left (b x \right )}{2}}{b^{4}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*Shi(b*x),x)

[Out]

1/b^4*(1/4*b^4*x^4*Shi(b*x)-1/4*b^3*x^3*cosh(b*x)+3/4*b^2*x^2*sinh(b*x)-3/2*b*x*cosh(b*x)+3/2*sinh(b*x))

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int x^{3} {\rm Shi}\left (b x\right )\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3*Shi(b*x),x, algorithm="maxima")

[Out]

integrate(x^3*Shi(b*x), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.02 \[ \int x^3\,\mathrm {sinhint}\left (b\,x\right ) \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3*sinhint(b*x),x)

[Out]

int(x^3*sinhint(b*x), x)

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sympy [A]  time = 1.08, size = 61, normalized size = 0.97 \[ \frac {x^{4} \operatorname {Shi}{\left (b x \right )}}{4} - \frac {x^{3} \cosh {\left (b x \right )}}{4 b} + \frac {3 x^{2} \sinh {\left (b x \right )}}{4 b^{2}} - \frac {3 x \cosh {\left (b x \right )}}{2 b^{3}} + \frac {3 \sinh {\left (b x \right )}}{2 b^{4}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**3*Shi(b*x),x)

[Out]

x**4*Shi(b*x)/4 - x**3*cosh(b*x)/(4*b) + 3*x**2*sinh(b*x)/(4*b**2) - 3*x*cosh(b*x)/(2*b**3) + 3*sinh(b*x)/(2*b
**4)

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