3.179 \(\int \frac {f^{a+b x^n}}{x} \, dx\)

Optimal. Leaf size=15 \[ \frac {f^a \text {Ei}\left (b x^n \log (f)\right )}{n} \]

[Out]

f^a*Ei(b*x^n*ln(f))/n

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Rubi [A]  time = 0.02, antiderivative size = 15, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {2210} \[ \frac {f^a \text {Ei}\left (b x^n \log (f)\right )}{n} \]

Antiderivative was successfully verified.

[In]

Int[f^(a + b*x^n)/x,x]

[Out]

(f^a*ExpIntegralEi[b*x^n*Log[f]])/n

Rule 2210

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^(n_))/((e_.) + (f_.)*(x_)), x_Symbol] :> Simp[(F^a*ExpIntegralEi[
b*(c + d*x)^n*Log[F]])/(f*n), x] /; FreeQ[{F, a, b, c, d, e, f, n}, x] && EqQ[d*e - c*f, 0]

Rubi steps

\begin {align*} \int \frac {f^{a+b x^n}}{x} \, dx &=\frac {f^a \text {Ei}\left (b x^n \log (f)\right )}{n}\\ \end {align*}

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Mathematica [A]  time = 0.00, size = 15, normalized size = 1.00 \[ \frac {f^a \text {Ei}\left (b x^n \log (f)\right )}{n} \]

Antiderivative was successfully verified.

[In]

Integrate[f^(a + b*x^n)/x,x]

[Out]

(f^a*ExpIntegralEi[b*x^n*Log[f]])/n

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fricas [A]  time = 0.41, size = 15, normalized size = 1.00 \[ \frac {f^{a} {\rm Ei}\left (b x^{n} \log \relax (f)\right )}{n} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(f^(a+b*x^n)/x,x, algorithm="fricas")

[Out]

f^a*Ei(b*x^n*log(f))/n

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {f^{b x^{n} + a}}{x}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(f^(a+b*x^n)/x,x, algorithm="giac")

[Out]

integrate(f^(b*x^n + a)/x, x)

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maple [A]  time = 0.21, size = 19, normalized size = 1.27 \[ -\frac {f^{a} \Ei \left (1, -b \,x^{n} \ln \relax (f )\right )}{n} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(f^(b*x^n+a)/x,x)

[Out]

-1/n*f^a*Ei(1,-b*x^n*ln(f))

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maxima [A]  time = 0.94, size = 15, normalized size = 1.00 \[ \frac {f^{a} {\rm Ei}\left (b x^{n} \log \relax (f)\right )}{n} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(f^(a+b*x^n)/x,x, algorithm="maxima")

[Out]

f^a*Ei(b*x^n*log(f))/n

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mupad [F]  time = 0.00, size = -1, normalized size = -0.07 \[ \int \frac {f^{a+b\,x^n}}{x} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(f^(a + b*x^n)/x,x)

[Out]

int(f^(a + b*x^n)/x, x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {f^{a + b x^{n}}}{x}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(f**(a+b*x**n)/x,x)

[Out]

Integral(f**(a + b*x**n)/x, x)

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