Integrand size = 13, antiderivative size = 12 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left (a+b e^x\right )}{b} \]
[Out]
Time = 0.01 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {2278, 31} \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left (a+b e^x\right )}{b} \]
[In]
[Out]
Rule 31
Rule 2278
Rubi steps \begin{align*} \text {integral}& = \text {Subst}\left (\int \frac {1}{a+b x} \, dx,x,e^x\right ) \\ & = \frac {\log \left (a+b e^x\right )}{b} \\ \end{align*}
Time = 0.01 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left (a+b e^x\right )}{b} \]
[In]
[Out]
Time = 0.01 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00
method | result | size |
derivativedivides | \(\frac {\ln \left (a +b \,{\mathrm e}^{x}\right )}{b}\) | \(12\) |
default | \(\frac {\ln \left (a +b \,{\mathrm e}^{x}\right )}{b}\) | \(12\) |
norman | \(\frac {\ln \left (a +b \,{\mathrm e}^{x}\right )}{b}\) | \(12\) |
parallelrisch | \(\frac {\ln \left (a +b \,{\mathrm e}^{x}\right )}{b}\) | \(12\) |
risch | \(\frac {\ln \left ({\mathrm e}^{x}+\frac {a}{b}\right )}{b}\) | \(14\) |
[In]
[Out]
none
Time = 0.25 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.92 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left (b e^{x} + a\right )}{b} \]
[In]
[Out]
Time = 0.05 (sec) , antiderivative size = 8, normalized size of antiderivative = 0.67 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log {\left (\frac {a}{b} + e^{x} \right )}}{b} \]
[In]
[Out]
none
Time = 0.18 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.92 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left (b e^{x} + a\right )}{b} \]
[In]
[Out]
none
Time = 0.31 (sec) , antiderivative size = 12, normalized size of antiderivative = 1.00 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\log \left ({\left | b e^{x} + a \right |}\right )}{b} \]
[In]
[Out]
Time = 0.05 (sec) , antiderivative size = 11, normalized size of antiderivative = 0.92 \[ \int \frac {e^x}{a+b e^x} \, dx=\frac {\ln \left (a+b\,{\mathrm {e}}^x\right )}{b} \]
[In]
[Out]