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.
plot (sin(t/3*2PI*3) - sin(t/3*2PI*6) ) from t = 0 to t = 3
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random