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.
\int\limits_{-\infty}^{\infty} \frac{sin (a x)}{a x} \frac{sin (b x)}{b x} dx
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random