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.
10 / sqrt ( 1 - ( x / 20 )²) * 20² - 10*20², (10/4 )*x²+(3/8)*(10/20²)*x^4 from -5 to 5
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random