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.
e^(-(d-0)^2/(2 0.4^2))/(sqrt(2 pi) 0.4)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random