This thread is just what the title says it is. It is all about Math. You can post math jokes(the jokes don't have to be good), math questions, what you like about Math, or even why you hate Math.
My math joke: Resistance is not futile. It is voltage divided by amps.
Jeol, what about a circle? It never ends, which is similar to the idea of infinity, right? So adding an inch to the circumference maybe? Sorry for double posting.
Gah nevermind then. Sorry for being ignorant. I cant think of any good examples and thats the only one I came up with and it sucked. Oh well. Maybe a line on a graph. Idk.
Ahh! You seem to have messed up the third line: 10x - x = 9.9999.... - 0.999999999.... => 9x = 9 x=1
That doesn't seem algebraicly logical. Where did the '-x' come from? And how did you get '9x=9'?
See above. All of the numbers in the decimal places of 9.99999999999.... were "deleted" by subtracted x=0.999999999 from both sides of the equation. It is a very famous proof, I assure you it is accurate.
Does infinite officially begin at the point where we no longer have names for large numbers?
No, "infinite" doesn't really begin. In complex plane, infinity is considered a point, where "ositive" and "negative" infinity don't make logical sense. So, we just have a point where all the "infinities" meet.
You can think of the complex plane (which includes the real number line, and therefore "real" infinity in addition to all of the complex numbers and complex infinities) as being a blanket wrapped around the ball. The center of the blanket is the origin (0,0), and where all the edges of the blanket meet on the other side of the ball is infinity. I could give a more rigorous description of how this exactly works (the ball is called a Riemann sphere, in case you want to look it up), if people so desire.
It is not possible in this physical universe to write an infinitely close number. But an infinitely close number can be as easy as imagining 0.999.. and 1.
How would .999... not be infinitely close to 1? It could also be valued on a number line as an infinitely small distance away from 1.
If you had a line that was infinitely long, is it not still a line, or has length?
It would be a line, which never stops. A line that stops both ways is a line segment. I forgot, what is a line that stops one way but goes the other way forever?