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.
a*(r^(L-265)-r^(C-265))/(r-1) where r=1.007, C=265, L=350, a=83475
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random