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.
[x=1-t^2,y=t^2,z=t^4]t=-1to1
[x=1-t^2,y=t^2,z=t^4]t=-1to1
Natural Language
Math Input
Extended Keyboard