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 0.04*sin(10*π*t+π/2) t=0..0.2
plot 0.04*sin(10*π*t+π/2) t=0..0.2
Natural Language
Math Input
Extended Keyboard