investigation the subject sin x \ x

[aetzbar]

http://img2.timg.co.il/forums/2/78fa1e1 ... 8c5831.pdf

[Guest]

What was your purpose in posting this? I have no problem with it (I would prefer "/" as indicating division rather than your "\") until the last line: "The limit of sinx\x = 1 good only for D = infinity mm". First, there is no "x" in anything you have written before that. Further the diameter of the circle, D, cannot "infinity mm". "infinity" is not a real number and no measurement can be "infinity mm". We can take the limit as some variable "goes to infinity" but a number cannot be "equal to infinity". It is true that the limit, as x goes to 0, of sin(x)/x is1 but, again, you had not said what "x" was or what it had to do with your picture.