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.
y = min(1, max(1 - 0.5^x, 1 - 0.5^min(x, 2.557) + 0.118(x - 2.557))) from x =0 to 4
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random