3.10 \(\int \sin (e^x) \, dx\)

Optimal. Leaf size=4 \[ \text{Si}\left (e^x\right ) \]

[Out]

SinIntegral[E^x]

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Rubi [A]  time = 0.0117071, antiderivative size = 4, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 4, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.5, Rules used = {2282, 3299} \[ \text{Si}\left (e^x\right ) \]

Antiderivative was successfully verified.

[In]

Int[Sin[E^x],x]

[Out]

SinIntegral[E^x]

Rule 2282

Int[u_, x_Symbol] :> With[{v = FunctionOfExponential[u, x]}, Dist[v/D[v, x], Subst[Int[FunctionOfExponentialFu
nction[u, x]/x, x], x, v], x]] /; FunctionOfExponentialQ[u, x] &&  !MatchQ[u, (w_)*((a_.)*(v_)^(n_))^(m_) /; F
reeQ[{a, m, n}, x] && IntegerQ[m*n]] &&  !MatchQ[u, E^((c_.)*((a_.) + (b_.)*x))*(F_)[v_] /; FreeQ[{a, b, c}, x
] && InverseFunctionQ[F[x]]]

Rule 3299

Int[sin[(e_.) + (f_.)*(x_)]/((c_.) + (d_.)*(x_)), x_Symbol] :> Simp[SinIntegral[e + f*x]/d, x] /; FreeQ[{c, d,
e, f}, x] && EqQ[d*e - c*f, 0]

Rubi steps

\begin{align*} \int \sin \left (e^x\right ) \, dx &=\operatorname{Subst}\left (\int \frac{\sin (x)}{x} \, dx,x,e^x\right )\\ &=\text{Si}\left (e^x\right )\\ \end{align*}

Mathematica [A]  time = 0.005286, size = 4, normalized size = 1. \[ \text{Si}\left (e^x\right ) \]

Antiderivative was successfully verified.

[In]

Integrate[Sin[E^x],x]

[Out]

SinIntegral[E^x]

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Maple [A]  time = 0.004, size = 4, normalized size = 1. \begin{align*}{\it Si} \left ({{\rm e}^{x}} \right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(sin(exp(x)),x)

[Out]

Si(exp(x))

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Maxima [C]  time = 1.06478, size = 20, normalized size = 5. \begin{align*} -\frac{1}{2} i \,{\rm Ei}\left (i \, e^{x}\right ) + \frac{1}{2} i \,{\rm Ei}\left (-i \, e^{x}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(exp(x)),x, algorithm="maxima")

[Out]

-1/2*I*Ei(I*e^x) + 1/2*I*Ei(-I*e^x)

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Fricas [A]  time = 1.9311, size = 26, normalized size = 6.5 \begin{align*} \operatorname{Si}\left (e^{x}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(exp(x)),x, algorithm="fricas")

[Out]

sin_integral(e^x)

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Sympy [A]  time = 0.64135, size = 3, normalized size = 0.75 \begin{align*} \operatorname{Si}{\left (e^{x} \right )} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(exp(x)),x)

[Out]

Si(exp(x))

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Giac [A]  time = 1.06027, size = 4, normalized size = 1. \begin{align*} \operatorname{Si}\left (e^{x}\right ) \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(sin(exp(x)),x, algorithm="giac")

[Out]

sin_integral(e^x)