If you type mathematical expression like 2+2 in the search box on the home page the result shown would be result of this expression. See screenshot:
I’ve played around with it and it seems to support following operations:
- Basic math: plus, minus, multiplication, division, power (^) and square root (sqrt)
- Trigonometry: sin, cos, tan, atan
- Division by zero yields infinity result (∞)
I found this by sheer chance as I was trying to use search to find one of the two hundred PDF files I’m testing Kindle DX with right now by a portion of it’s name (6-2-3). Turns out Kindle DX doesn’t index file names but it did tell me that 6-2-3=1 :)
It would be great for Amazon to also add currency conversion as part of this calculator.