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This is my first post; didn't see an introduction thread.

...sorry, you cannot view external links. To see them, please REGISTER or LOGIN which is only defined for real numbers. At least for what you used as input.Anyway, why did you start your first post with that and not even comment on why you put it there? What was its purpose anyway?Quote from: Beer w/StrawWhy doesn't this site have avatars when when it seems to have lots besides?You'll have to ask the founder of the forum. I imagine its because this is a serious forum and avatars make it less serious given what some people use as avatars.

Why doesn't this site have avatars when when it seems to have lots besides?

MY post was a jumble of things. Didn't know if the TEX command would actually work.Also having some unrelated things to contend with, so I may make a more thorough response in like three or four hours... And it was complex infinity, not infinity, if that makes any difference to you.

complexInfinity represents the only non-complex point of the one-point compactification of the complex numbers.Mathematically, complexInfinity is the north pole of the Riemann sphere, with the unit circle as equator and the point 0 at the south pole.With respect to arithmetic, complexInfinity behaves like "1/0". In particular, non-zero complex numbers may be multiplied or divided by complexInfinity or 1/ complexInfinity. Adding complexInfinity to a finite number yields again complexInfinity.With respect to arithmetical operations, complexInfinity is incompatible with the real infinity.

Riemann Sphere(redirected from Complex infinity)Also found in: Wikipedia.Riemann sphere[′rē‚män ‚sfir](mathematics)The two-sphere whose points are identified with all complex numbers by a stereographic projection. Also known as complex sphere.McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

if we evaluate this strictly as 1/(1/0) then there is no way to give the answer, but with a little algebraic manipulation (multiplying by another undefinable, 0/0) we do indeed get (0*1)/(1*0/0), which simplifies to 0/1 = 0.

Given no context, I agree with pmbphy, that dividing by 0 gives a nonsensical answer, but if there were some context (what type of zero: is this something where the limit approaches zero? or was this zero introduced to an otherwise soluble expression?) then the expression could be evaluated...

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