Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
integrate (1/(1+e^(-k*t))*e^(i*W*t)*e^(-a*t)*e^(-i*w*t))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random