3.174 \(\int \cos (\frac {1}{2} b^2 \pi x^2) C(b x)^2 \, dx\)

Optimal. Leaf size=13 \[ \frac {C(b x)^3}{3 b} \]

[Out]

1/3*FresnelC(b*x)^3/b

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Rubi [A]  time = 0.01, antiderivative size = 13, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {6441, 30} \[ \frac {\text {FresnelC}(b x)^3}{3 b} \]

Antiderivative was successfully verified.

[In]

Int[Cos[(b^2*Pi*x^2)/2]*FresnelC[b*x]^2,x]

[Out]

FresnelC[b*x]^3/(3*b)

Rule 30

Int[(x_)^(m_.), x_Symbol] :> Simp[x^(m + 1)/(m + 1), x] /; FreeQ[m, x] && NeQ[m, -1]

Rule 6441

Int[Cos[(d_.)*(x_)^2]*FresnelC[(b_.)*(x_)]^(n_.), x_Symbol] :> Dist[(Pi*b)/(2*d), Subst[Int[x^n, x], x, Fresne
lC[b*x]], x] /; FreeQ[{b, d, n}, x] && EqQ[d^2, (Pi^2*b^4)/4]

Rubi steps

\begin {align*} \int \cos \left (\frac {1}{2} b^2 \pi x^2\right ) C(b x)^2 \, dx &=\frac {\operatorname {Subst}\left (\int x^2 \, dx,x,C(b x)\right )}{b}\\ &=\frac {C(b x)^3}{3 b}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 13, normalized size = 1.00 \[ \frac {C(b x)^3}{3 b} \]

Antiderivative was successfully verified.

[In]

Integrate[Cos[(b^2*Pi*x^2)/2]*FresnelC[b*x]^2,x]

[Out]

FresnelC[b*x]^3/(3*b)

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fricas [F]  time = 0.49, size = 0, normalized size = 0.00 \[ {\rm integral}\left (\cos \left (\frac {1}{2} \, \pi b^{2} x^{2}\right ) {\rm fresnelc}\left (b x\right )^{2}, x\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(1/2*b^2*pi*x^2)*fresnelc(b*x)^2,x, algorithm="fricas")

[Out]

integral(cos(1/2*pi*b^2*x^2)*fresnelc(b*x)^2, x)

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \cos \left (\frac {1}{2} \, \pi b^{2} x^{2}\right ) {\rm fresnelc}\left (b x\right )^{2}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(1/2*b^2*pi*x^2)*fresnelc(b*x)^2,x, algorithm="giac")

[Out]

integrate(cos(1/2*pi*b^2*x^2)*fresnelc(b*x)^2, x)

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maple [A]  time = 0.02, size = 12, normalized size = 0.92 \[ \frac {\FresnelC \left (b x \right )^{3}}{3 b} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(cos(1/2*b^2*Pi*x^2)*FresnelC(b*x)^2,x)

[Out]

1/3*FresnelC(b*x)^3/b

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \cos \left (\frac {1}{2} \, \pi b^{2} x^{2}\right ) {\rm fresnelc}\left (b x\right )^{2}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(1/2*b^2*pi*x^2)*fresnelc(b*x)^2,x, algorithm="maxima")

[Out]

integrate(cos(1/2*pi*b^2*x^2)*fresnelc(b*x)^2, x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.08 \[ \int {\mathrm {FresnelC}\left (b\,x\right )}^2\,\cos \left (\frac {\Pi \,b^2\,x^2}{2}\right ) \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(FresnelC(b*x)^2*cos((Pi*b^2*x^2)/2),x)

[Out]

int(FresnelC(b*x)^2*cos((Pi*b^2*x^2)/2), x)

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sympy [A]  time = 1.18, size = 10, normalized size = 0.77 \[ \begin {cases} \frac {C^{3}\left (b x\right )}{3 b} & \text {for}\: b \neq 0 \\0 & \text {otherwise} \end {cases} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(cos(1/2*b**2*pi*x**2)*fresnelc(b*x)**2,x)

[Out]

Piecewise((fresnelc(b*x)**3/(3*b), Ne(b, 0)), (0, True))

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