Integrand size = 16, antiderivative size = 22 \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=e^4 \operatorname {ExpIntegralEi}(-4+2 x)-e^2 \operatorname {ExpIntegralEi}(-2+2 x) \]
[Out]
Time = 0.04 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {2300, 2209} \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=e^4 \operatorname {ExpIntegralEi}(2 x-4)-e^2 \operatorname {ExpIntegralEi}(2 x-2) \]
[In]
[Out]
Rule 2209
Rule 2300
Rubi steps \begin{align*} \text {integral}& = \int \left (-\frac {2 e^{2 x}}{4-2 x}-\frac {2 e^{2 x}}{-2+2 x}\right ) \, dx \\ & = -\left (2 \int \frac {e^{2 x}}{4-2 x} \, dx\right )-2 \int \frac {e^{2 x}}{-2+2 x} \, dx \\ & = e^4 \operatorname {ExpIntegralEi}(-4+2 x)-e^2 \operatorname {ExpIntegralEi}(-2+2 x) \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 22, normalized size of antiderivative = 1.00 \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=e^4 \operatorname {ExpIntegralEi}(-4+2 x)-e^2 \operatorname {ExpIntegralEi}(-2+2 x) \]
[In]
[Out]
Time = 0.09 (sec) , antiderivative size = 23, normalized size of antiderivative = 1.05
method | result | size |
derivativedivides | \(-{\mathrm e}^{4} \operatorname {Ei}_{1}\left (-2 x +4\right )+{\mathrm e}^{2} \operatorname {Ei}_{1}\left (-2 x +2\right )\) | \(23\) |
default | \(-{\mathrm e}^{4} \operatorname {Ei}_{1}\left (-2 x +4\right )+{\mathrm e}^{2} \operatorname {Ei}_{1}\left (-2 x +2\right )\) | \(23\) |
risch | \(-{\mathrm e}^{4} \operatorname {Ei}_{1}\left (-2 x +4\right )+{\mathrm e}^{2} \operatorname {Ei}_{1}\left (-2 x +2\right )\) | \(23\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.91 \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx={\rm Ei}\left (2 \, x - 4\right ) e^{4} - {\rm Ei}\left (2 \, x - 2\right ) e^{2} \]
[In]
[Out]
\[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=\int \frac {e^{2 x}}{\left (x - 2\right ) \left (x - 1\right )}\, dx \]
[In]
[Out]
\[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=\int { \frac {e^{\left (2 \, x\right )}}{x^{2} - 3 \, x + 2} \,d x } \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.91 \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx={\rm Ei}\left (2 \, x - 4\right ) e^{4} - {\rm Ei}\left (2 \, x - 2\right ) e^{2} \]
[In]
[Out]
Timed out. \[ \int \frac {e^{2 x}}{2-3 x+x^2} \, dx=\int \frac {{\mathrm {e}}^{2\,x}}{x^2-3\,x+2} \,d x \]
[In]
[Out]