Quote:
Originally Posted by kacir
Aehm ...
Math was not you favourite subject, was it?
Sony (Kindle 1 and 2, cybook, ...) has 6 inch screen with 800x600 pixels
new Opus has 5 inch screen with 800x600 pixels resolution.
let's do a little bit of math here:
5 inch diagonal 800x600 screen makes classical pythagorian triangle 3,4,5
let's check it:
3^2 + 4^2 = 5^2
9 + 16 = 25
OK. we have established that 5 inch screen has dimensions exactly 3 x 4 inches.
Now, bear with me
800 pixels / 4 inches is ...
TADAAAAAA
200 pixels per inch. *Exactly* 200 pixels per inch. |
But the screen in not exactly 6 inch. Measuring my screen width I got 91mm which give me 167 pixels per inch.