Optimal. Leaf size=54 \[ -\frac{2 \text{FresnelC}(b x) \sin \left (\frac{1}{2} \pi b^2 x^2\right )}{\pi b}+x \text{FresnelC}(b x)^2+\frac{S\left (\sqrt{2} b x\right )}{\sqrt{2} \pi b} \]
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Rubi [A] time = 0.0360543, antiderivative size = 54, normalized size of antiderivative = 1., number of steps used = 4, number of rules used = 4, integrand size = 6, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.667, Rules used = {6421, 12, 6453, 3351} \[ -\frac{2 \text{FresnelC}(b x) \sin \left (\frac{1}{2} \pi b^2 x^2\right )}{\pi b}+x \text{FresnelC}(b x)^2+\frac{S\left (\sqrt{2} b x\right )}{\sqrt{2} \pi b} \]
Antiderivative was successfully verified.
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Rule 6421
Rule 12
Rule 6453
Rule 3351
Rubi steps
\begin{align*} \int C(b x)^2 \, dx &=x C(b x)^2-2 \int b x \cos \left (\frac{1}{2} b^2 \pi x^2\right ) C(b x) \, dx\\ &=x C(b x)^2-(2 b) \int x \cos \left (\frac{1}{2} b^2 \pi x^2\right ) C(b x) \, dx\\ &=x C(b x)^2-\frac{2 C(b x) \sin \left (\frac{1}{2} b^2 \pi x^2\right )}{b \pi }+\frac{\int \sin \left (b^2 \pi x^2\right ) \, dx}{\pi }\\ &=x C(b x)^2+\frac{S\left (\sqrt{2} b x\right )}{\sqrt{2} b \pi }-\frac{2 C(b x) \sin \left (\frac{1}{2} b^2 \pi x^2\right )}{b \pi }\\ \end{align*}
Mathematica [A] time = 0.0100313, size = 54, normalized size = 1. \[ -\frac{2 \text{FresnelC}(b x) \sin \left (\frac{1}{2} \pi b^2 x^2\right )}{\pi b}+x \text{FresnelC}(b x)^2+\frac{S\left (\sqrt{2} b x\right )}{\sqrt{2} \pi b} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.053, size = 49, normalized size = 0.9 \begin{align*}{\frac{1}{b} \left ( bx \left ({\it FresnelC} \left ( bx \right ) \right ) ^{2}-2\,{\frac{{\it FresnelC} \left ( bx \right ) \sin \left ( 1/2\,{b}^{2}\pi \,{x}^{2} \right ) }{\pi }}+{\frac{\sqrt{2}{\it FresnelS} \left ( bx\sqrt{2} \right ) }{2\,\pi }} \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\rm fresnelc}\left (b x\right )^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left ({\rm fresnelc}\left (b x\right )^{2}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int C^{2}\left (b x\right )\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\rm fresnelc}\left (b x\right )^{2}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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