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.
2*atan(R*(9/16)*tan((F/2)*pi/180))*180/pi where R=16/10, F=130
2*atan(R*(9/16)*tan((F/2)*pi/180))*180/pi where R=16/10, F=130
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
