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.
plot(-ln(x)/ln(16)-(1/16)^x,x=0.25..0.5)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random