Optimal. Leaf size=268 \[ \frac {\sqrt {\pi } f^{a-\frac {b^2}{4 c}} \text {erfi}\left (\frac {\sqrt {\log (f)} (b+2 c x)}{2 \sqrt {c}}\right )}{4 \sqrt {c} \sqrt {\log (f)}}+\frac {\sqrt {\pi } f^a \exp \left (-\frac {(2 e+i b \log (f))^2}{-4 c \log (f)+8 i f}-2 i d\right ) \text {erf}\left (\frac {-b \log (f)+2 x (-c \log (f)+2 i f)+2 i e}{2 \sqrt {-c \log (f)+2 i f}}\right )}{8 \sqrt {-c \log (f)+2 i f}}+\frac {\sqrt {\pi } f^a \exp \left (\frac {(2 e-i b \log (f))^2}{4 c \log (f)+8 i f}+2 i d\right ) \text {erfi}\left (\frac {b \log (f)+2 x (c \log (f)+2 i f)+2 i e}{2 \sqrt {c \log (f)+2 i f}}\right )}{8 \sqrt {c \log (f)+2 i f}} \]
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Rubi [A] time = 0.46, antiderivative size = 268, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 5, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.192, Rules used = {4473, 2234, 2204, 2287, 2205} \[ \frac {\sqrt {\pi } f^{a-\frac {b^2}{4 c}} \text {Erfi}\left (\frac {\sqrt {\log (f)} (b+2 c x)}{2 \sqrt {c}}\right )}{4 \sqrt {c} \sqrt {\log (f)}}+\frac {\sqrt {\pi } f^a \exp \left (-\frac {(2 e+i b \log (f))^2}{-4 c \log (f)+8 i f}-2 i d\right ) \text {Erf}\left (\frac {-b \log (f)+2 x (-c \log (f)+2 i f)+2 i e}{2 \sqrt {-c \log (f)+2 i f}}\right )}{8 \sqrt {-c \log (f)+2 i f}}+\frac {\sqrt {\pi } f^a \exp \left (\frac {(2 e-i b \log (f))^2}{4 c \log (f)+8 i f}+2 i d\right ) \text {Erfi}\left (\frac {b \log (f)+2 x (c \log (f)+2 i f)+2 i e}{2 \sqrt {c \log (f)+2 i f}}\right )}{8 \sqrt {c \log (f)+2 i f}} \]
Antiderivative was successfully verified.
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Rule 2204
Rule 2205
Rule 2234
Rule 2287
Rule 4473
Rubi steps
\begin {align*} \int f^{a+b x+c x^2} \cos ^2\left (d+e x+f x^2\right ) \, dx &=\int \left (\frac {1}{2} f^{a+b x+c x^2}+\frac {1}{4} e^{-2 i d-2 i e x-2 i f x^2} f^{a+b x+c x^2}+\frac {1}{4} e^{2 i d+2 i e x+2 i f x^2} f^{a+b x+c x^2}\right ) \, dx\\ &=\frac {1}{4} \int e^{-2 i d-2 i e x-2 i f x^2} f^{a+b x+c x^2} \, dx+\frac {1}{4} \int e^{2 i d+2 i e x+2 i f x^2} f^{a+b x+c x^2} \, dx+\frac {1}{2} \int f^{a+b x+c x^2} \, dx\\ &=\frac {1}{4} \int \exp \left (-2 i d+a \log (f)-x (2 i e-b \log (f))-x^2 (2 i f-c \log (f))\right ) \, dx+\frac {1}{4} \int \exp \left (2 i d+a \log (f)+x (2 i e+b \log (f))+x^2 (2 i f+c \log (f))\right ) \, dx+\frac {1}{2} f^{a-\frac {b^2}{4 c}} \int f^{\frac {(b+2 c x)^2}{4 c}} \, dx\\ &=\frac {f^{a-\frac {b^2}{4 c}} \sqrt {\pi } \text {erfi}\left (\frac {(b+2 c x) \sqrt {\log (f)}}{2 \sqrt {c}}\right )}{4 \sqrt {c} \sqrt {\log (f)}}+\frac {1}{4} \left (\exp \left (-2 i d-\frac {(2 e+i b \log (f))^2}{8 i f-4 c \log (f)}\right ) f^a\right ) \int \exp \left (\frac {(-2 i e+b \log (f)+2 x (-2 i f+c \log (f)))^2}{4 (-2 i f+c \log (f))}\right ) \, dx+\frac {1}{4} \left (\exp \left (2 i d+\frac {(2 e-i b \log (f))^2}{8 i f+4 c \log (f)}\right ) f^a\right ) \int \exp \left (\frac {(2 i e+b \log (f)+2 x (2 i f+c \log (f)))^2}{4 (2 i f+c \log (f))}\right ) \, dx\\ &=\frac {f^{a-\frac {b^2}{4 c}} \sqrt {\pi } \text {erfi}\left (\frac {(b+2 c x) \sqrt {\log (f)}}{2 \sqrt {c}}\right )}{4 \sqrt {c} \sqrt {\log (f)}}+\frac {\exp \left (-2 i d-\frac {(2 e+i b \log (f))^2}{8 i f-4 c \log (f)}\right ) f^a \sqrt {\pi } \text {erf}\left (\frac {2 i e-b \log (f)+2 x (2 i f-c \log (f))}{2 \sqrt {2 i f-c \log (f)}}\right )}{8 \sqrt {2 i f-c \log (f)}}+\frac {\exp \left (2 i d+\frac {(2 e-i b \log (f))^2}{8 i f+4 c \log (f)}\right ) f^a \sqrt {\pi } \text {erfi}\left (\frac {2 i e+b \log (f)+2 x (2 i f+c \log (f))}{2 \sqrt {2 i f+c \log (f)}}\right )}{8 \sqrt {2 i f+c \log (f)}}\\ \end {align*}
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Mathematica [B] time = 6.74, size = 1118, normalized size = 4.17 \[ \frac {f^a \sqrt {\pi } \left (8 \sqrt {c} \text {erfi}\left (\frac {(b+2 c x) \sqrt {\log (f)}}{2 \sqrt {c}}\right ) \sqrt {\log (f)} f^{2-\frac {b^2}{4 c}}+2 c^{5/2} \text {erfi}\left (\frac {(b+2 c x) \sqrt {\log (f)}}{2 \sqrt {c}}\right ) \log ^{\frac {5}{2}}(f) f^{-\frac {b^2}{4 c}}+2 \sqrt [4]{-1} c e^{\frac {i \left (-4 e^2+4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f-i c \log (f))}} \text {erfi}\left (\frac {\sqrt [4]{-1} (2 e+4 f x-i b \log (f)-2 i c x \log (f))}{2 \sqrt {2 f-i c \log (f)}}\right ) \log (f) \sqrt {2 f-i c \log (f)} \sin (2 d) f+2 (-1)^{3/4} c e^{-\frac {i \left (-4 e^2-4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f+i c \log (f))}} \text {erfi}\left (\frac {(-1)^{3/4} (2 e+4 f x+i b \log (f)+2 i c x \log (f))}{2 \sqrt {2 f+i c \log (f)}}\right ) \log (f) \sqrt {2 f+i c \log (f)} \sin (2 d) f-2 (-1)^{3/4} c e^{\frac {i \left (-4 e^2+4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f-i c \log (f))}} \cos (2 d) \text {erfi}\left (\frac {\sqrt [4]{-1} (2 e+4 f x-i b \log (f)-2 i c x \log (f))}{2 \sqrt {2 f-i c \log (f)}}\right ) \log (f) \sqrt {2 f-i c \log (f)} f-2 \sqrt [4]{-1} c e^{-\frac {i \left (-4 e^2-4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f+i c \log (f))}} \cos (2 d) \text {erfi}\left (\frac {(-1)^{3/4} (2 e+4 f x+i b \log (f)+2 i c x \log (f))}{2 \sqrt {2 f+i c \log (f)}}\right ) \log (f) \sqrt {2 f+i c \log (f)} f+(-1)^{3/4} c^2 e^{\frac {i \left (-4 e^2+4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f-i c \log (f))}} \text {erfi}\left (\frac {\sqrt [4]{-1} (2 e+4 f x-i b \log (f)-2 i c x \log (f))}{2 \sqrt {2 f-i c \log (f)}}\right ) \log ^2(f) \sqrt {2 f-i c \log (f)} \sin (2 d)+\sqrt [4]{-1} c^2 e^{-\frac {i \left (-4 e^2-4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f+i c \log (f))}} \text {erfi}\left (\frac {(-1)^{3/4} (2 e+4 f x+i b \log (f)+2 i c x \log (f))}{2 \sqrt {2 f+i c \log (f)}}\right ) \log ^2(f) \sqrt {2 f+i c \log (f)} \sin (2 d)+\sqrt [4]{-1} c^2 e^{\frac {i \left (-4 e^2+4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f-i c \log (f))}} \cos (2 d) \text {erfi}\left (\frac {\sqrt [4]{-1} (2 e+4 f x-i b \log (f)-2 i c x \log (f))}{2 \sqrt {2 f-i c \log (f)}}\right ) \log ^2(f) \sqrt {2 f-i c \log (f)}+(-1)^{3/4} c^2 e^{-\frac {i \left (-4 e^2-4 i b \log (f) e+b^2 \log ^2(f)\right )}{4 (2 f+i c \log (f))}} \cos (2 d) \text {erfi}\left (\frac {(-1)^{3/4} (2 e+4 f x+i b \log (f)+2 i c x \log (f))}{2 \sqrt {2 f+i c \log (f)}}\right ) \log ^2(f) \sqrt {2 f+i c \log (f)}\right )}{8 c \log (f) (2 f-i c \log (f)) (2 f+i c \log (f))} \]
Warning: Unable to verify antiderivative.
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fricas [B] time = 0.68, size = 468, normalized size = 1.75 \[ -\frac {\sqrt {\pi } {\left (c^{2} \log \relax (f)^{2} - 2 i \, c f \log \relax (f)\right )} \sqrt {-c \log \relax (f) - 2 i \, f} \operatorname {erf}\left (\frac {{\left (8 \, f^{2} x + {\left (2 \, c^{2} x + b c\right )} \log \relax (f)^{2} + 4 \, e f + {\left (2 i \, c e - 2 i \, b f\right )} \log \relax (f)\right )} \sqrt {-c \log \relax (f) - 2 i \, f}}{2 \, {\left (c^{2} \log \relax (f)^{2} + 4 \, f^{2}\right )}}\right ) e^{\left (-\frac {{\left (b^{2} c - 4 \, a c^{2}\right )} \log \relax (f)^{3} + 8 i \, e^{2} f - 32 i \, d f^{2} - {\left (8 i \, c^{2} d - 4 i \, b c e + 2 i \, b^{2} f\right )} \log \relax (f)^{2} - 4 \, {\left (c e^{2} - 2 \, b e f + 4 \, a f^{2}\right )} \log \relax (f)}{4 \, {\left (c^{2} \log \relax (f)^{2} + 4 \, f^{2}\right )}}\right )} + \sqrt {\pi } {\left (c^{2} \log \relax (f)^{2} + 2 i \, c f \log \relax (f)\right )} \sqrt {-c \log \relax (f) + 2 i \, f} \operatorname {erf}\left (\frac {{\left (8 \, f^{2} x + {\left (2 \, c^{2} x + b c\right )} \log \relax (f)^{2} + 4 \, e f + {\left (-2 i \, c e + 2 i \, b f\right )} \log \relax (f)\right )} \sqrt {-c \log \relax (f) + 2 i \, f}}{2 \, {\left (c^{2} \log \relax (f)^{2} + 4 \, f^{2}\right )}}\right ) e^{\left (-\frac {{\left (b^{2} c - 4 \, a c^{2}\right )} \log \relax (f)^{3} - 8 i \, e^{2} f + 32 i \, d f^{2} - {\left (-8 i \, c^{2} d + 4 i \, b c e - 2 i \, b^{2} f\right )} \log \relax (f)^{2} - 4 \, {\left (c e^{2} - 2 \, b e f + 4 \, a f^{2}\right )} \log \relax (f)}{4 \, {\left (c^{2} \log \relax (f)^{2} + 4 \, f^{2}\right )}}\right )} + \frac {2 \, \sqrt {\pi } {\left (c^{2} \log \relax (f)^{2} + 4 \, f^{2}\right )} \sqrt {-c \log \relax (f)} \operatorname {erf}\left (\frac {{\left (2 \, c x + b\right )} \sqrt {-c \log \relax (f)}}{2 \, c}\right )}{f^{\frac {b^{2} - 4 \, a c}{4 \, c}}}}{8 \, {\left (c^{3} \log \relax (f)^{3} + 4 \, c f^{2} \log \relax (f)\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int f^{c x^{2} + b x + a} \cos \left (f x^{2} + e x + d\right )^{2}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.33, size = 263, normalized size = 0.98 \[ -\frac {\sqrt {\pi }\, f^{a} {\mathrm e}^{-\frac {\ln \relax (f )^{2} b^{2}-4 i \ln \relax (f ) b e +8 i d \ln \relax (f ) c +16 d f -4 e^{2}}{4 \left (-2 i f +c \ln \relax (f )\right )}} \erf \left (-x \sqrt {2 i f -c \ln \relax (f )}+\frac {b \ln \relax (f )-2 i e}{2 \sqrt {2 i f -c \ln \relax (f )}}\right )}{8 \sqrt {2 i f -c \ln \relax (f )}}-\frac {\sqrt {\pi }\, f^{a} {\mathrm e}^{-\frac {\ln \relax (f )^{2} b^{2}+4 i \ln \relax (f ) b e -8 i d \ln \relax (f ) c +16 d f -4 e^{2}}{4 \left (2 i f +c \ln \relax (f )\right )}} \erf \left (-\sqrt {-2 i f -c \ln \relax (f )}\, x +\frac {2 i e +b \ln \relax (f )}{2 \sqrt {-2 i f -c \ln \relax (f )}}\right )}{8 \sqrt {-2 i f -c \ln \relax (f )}}-\frac {\sqrt {\pi }\, f^{a} f^{-\frac {b^{2}}{4 c}} \erf \left (-\sqrt {-c \ln \relax (f )}\, x +\frac {b \ln \relax (f )}{2 \sqrt {-c \ln \relax (f )}}\right )}{4 \sqrt {-c \ln \relax (f )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [C] time = 0.42, size = 1487, normalized size = 5.55 \[ \text {result too large to display} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.00 \[ \int f^{c\,x^2+b\,x+a}\,{\cos \left (f\,x^2+e\,x+d\right )}^2 \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Timed out} \]
Verification of antiderivative is not currently implemented for this CAS.
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