Integrand size = 19, antiderivative size = 101 \[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\frac {\cos (c) \operatorname {FresnelS}(b x)^2}{2 b}+\frac {\operatorname {FresnelC}(b x) \operatorname {FresnelS}(b x) \sin (c)}{2 b}-\frac {1}{8} i b x^2 \, _2F_2\left (1,1;\frac {3}{2},2;-\frac {1}{2} i b^2 \pi x^2\right ) \sin (c)+\frac {1}{8} i b x^2 \, _2F_2\left (1,1;\frac {3}{2},2;\frac {1}{2} i b^2 \pi x^2\right ) \sin (c) \]
1/2*cos(c)*FresnelS(b*x)^2/b+1/2*FresnelC(b*x)*FresnelS(b*x)*sin(c)/b-1/8* I*b*x^2*hypergeom([1, 1],[3/2, 2],-1/2*I*b^2*Pi*x^2)*sin(c)+1/8*I*b*x^2*hy pergeom([1, 1],[3/2, 2],1/2*I*b^2*Pi*x^2)*sin(c)
\[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx \]
Time = 0.36 (sec) , antiderivative size = 99, normalized size of antiderivative = 0.98, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.211, Rules used = {6996, 6994, 15, 7000}
Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.
\(\displaystyle \int \operatorname {FresnelS}(b x) \sin \left (\frac {1}{2} \pi b^2 x^2+c\right ) \, dx\) |
\(\Big \downarrow \) 6996 |
\(\displaystyle \sin (c) \int \cos \left (\frac {1}{2} b^2 \pi x^2\right ) \operatorname {FresnelS}(b x)dx+\cos (c) \int \operatorname {FresnelS}(b x) \sin \left (\frac {1}{2} b^2 \pi x^2\right )dx\) |
\(\Big \downarrow \) 6994 |
\(\displaystyle \sin (c) \int \cos \left (\frac {1}{2} b^2 \pi x^2\right ) \operatorname {FresnelS}(b x)dx+\frac {\cos (c) \int \operatorname {FresnelS}(b x)d\operatorname {FresnelS}(b x)}{b}\) |
\(\Big \downarrow \) 15 |
\(\displaystyle \sin (c) \int \cos \left (\frac {1}{2} b^2 \pi x^2\right ) \operatorname {FresnelS}(b x)dx+\frac {\cos (c) \operatorname {FresnelS}(b x)^2}{2 b}\) |
\(\Big \downarrow \) 7000 |
\(\displaystyle \frac {\cos (c) \operatorname {FresnelS}(b x)^2}{2 b}+\sin (c) \left (-\frac {1}{8} i b x^2 \, _2F_2\left (1,1;\frac {3}{2},2;-\frac {1}{2} i b^2 \pi x^2\right )+\frac {1}{8} i b x^2 \, _2F_2\left (1,1;\frac {3}{2},2;\frac {1}{2} i b^2 \pi x^2\right )+\frac {\operatorname {FresnelC}(b x) \operatorname {FresnelS}(b x)}{2 b}\right )\) |
(Cos[c]*FresnelS[b*x]^2)/(2*b) + ((FresnelC[b*x]*FresnelS[b*x])/(2*b) - (I /8)*b*x^2*HypergeometricPFQ[{1, 1}, {3/2, 2}, (-1/2*I)*b^2*Pi*x^2] + (I/8) *b*x^2*HypergeometricPFQ[{1, 1}, {3/2, 2}, (I/2)*b^2*Pi*x^2])*Sin[c]
3.1.63.3.1 Defintions of rubi rules used
Int[(a_.)*(x_)^(m_.), x_Symbol] :> Simp[a*(x^(m + 1)/(m + 1)), x] /; FreeQ[ {a, m}, x] && NeQ[m, -1]
Int[FresnelS[(b_.)*(x_)]^(n_.)*Sin[(d_.)*(x_)^2], x_Symbol] :> Simp[Pi*(b/( 2*d)) Subst[Int[x^n, x], x, FresnelS[b*x]], x] /; FreeQ[{b, d, n}, x] && EqQ[d^2, (Pi^2/4)*b^4]
Int[FresnelS[(b_.)*(x_)]*Sin[(c_) + (d_.)*(x_)^2], x_Symbol] :> Simp[Sin[c] Int[Cos[d*x^2]*FresnelS[b*x], x], x] + Simp[Cos[c] Int[Sin[d*x^2]*Fres nelS[b*x], x], x] /; FreeQ[{b, c, d}, x] && EqQ[d^2, (Pi^2/4)*b^4]
Int[Cos[(d_.)*(x_)^2]*FresnelS[(b_.)*(x_)], x_Symbol] :> Simp[FresnelC[b*x] *(FresnelS[b*x]/(2*b)), x] + (-Simp[(1/8)*I*b*x^2*HypergeometricPFQ[{1, 1}, {3/2, 2}, (-2^(-1))*I*b^2*Pi*x^2], x] + Simp[(1/8)*I*b*x^2*HypergeometricP FQ[{1, 1}, {3/2, 2}, (1/2)*I*b^2*Pi*x^2], x]) /; FreeQ[{b, d}, x] && EqQ[d^ 2, (Pi^2/4)*b^4]
\[\int \operatorname {FresnelS}\left (b x \right ) \sin \left (c +\frac {b^{2} \pi \,x^{2}}{2}\right )d x\]
\[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int { \operatorname {S}\left (b x\right ) \sin \left (\frac {1}{2} \, \pi b^{2} x^{2} + c\right ) \,d x } \]
\[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int \sin {\left (\frac {\pi b^{2} x^{2}}{2} + c \right )} S\left (b x\right )\, dx \]
\[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int { \operatorname {S}\left (b x\right ) \sin \left (\frac {1}{2} \, \pi b^{2} x^{2} + c\right ) \,d x } \]
\[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int { \operatorname {S}\left (b x\right ) \sin \left (\frac {1}{2} \, \pi b^{2} x^{2} + c\right ) \,d x } \]
Timed out. \[ \int \operatorname {FresnelS}(b x) \sin \left (c+\frac {1}{2} b^2 \pi x^2\right ) \, dx=\int \sin \left (\frac {\Pi \,b^2\,x^2}{2}+c\right )\,\mathrm {FresnelS}\left (b\,x\right ) \,d x \]