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.
bode ( 10000 * (s-9) / (s^2+s*1020+10000) )
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random