Math Is Fun Forum

But isn't that pretty much the same for a sphere?

Hmm yes what is n?

I heard from other here that in some places you learn it early, for instance in 10th grade, and in other places you have to wait till uni.

I dunno, I would think of it as being stuck on the inside surface of a hollow sphere and being unable to walk off because you keep going round again and again.

It would be cool if we could 'tunnel' ourselves out, maybe it's possible, maybe I'm wrong about there being nothing outside, but I think it's what modern science says.

Lord Acton, I think

Well... nothing, unless you say empty = 0, which means that 0.5E * 0.5F = 0 ?

Lol, that's why I like maths!

Yeah sorry I forgot to mention that. They are both squares

They are pretty much as bad as each other, I think, but I would rather have anarchy because you are pretty much free, even though you might not have the Secret Police to take care of the community, lol!

Think of 1.86 as a number, but if you apply it to the real world, it is incomplete. If you want to use a value in the real world, you need to say what TYPE of number it is.

It could be 1.86m, or $1.86, or 1.86kg etc.

It is complete in the 'number' world, but you must specify what type it is to apply it to real world problems.

Thanks heaps mathsy! Even though this is a revision unit there were just a few things i had to clarify