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.
recurrence a(n+1)=(1/2) a(n)+2, a(1)=1/2
recurrence a(n+1)=(1/2) a(n)+2, a(1)=1/2
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
