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.
ParametricPlot[{Sin[t]*Cos[Pi/4*(1 - Cos[t])], Sin[t]*Sin[Pi/4*(1 - Cos[t])]}, {t, 0, 2*Pi}]
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random