262 reputation
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location India
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visits member for 1 year, 1 month
seen May 18 at 9:47
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May
18
comment Power series of $f(x)=\sqrt{\frac{1+x}{1-x}}$
Of course $ |x|< 1$ for this to hold, that would be radius of convergence of the series, I think.
May
18
answered Power series of $f(x)=\sqrt{\frac{1+x}{1-x}}$
May
17
accepted Closed sets in a given topology
May
17
comment Closed sets in a given topology
Thanks a lot, I guess I should have just picked up on a specific point to work on than wandering around arbitrarily.
May
17
asked Closed sets in a given topology
May
17
awarded  Caucus
Mar
28
awarded  Yearling
Mar
26
answered Do you have any idea what matrix space is?
Mar
25
comment Closure of a compact set in Regular space $ X $
Thanks for the answer, the last statement however, I couldn't comprehend.
Mar
25
accepted Closure of a compact set in Regular space $ X $
Mar
25
asked Closure of a compact set in Regular space $ X $
Nov
18
comment General definition of a line
Ok, I guess I need to read along a bit more to get a better picture. Thanks a lot for your patience.
Nov
18
comment General definition of a line
I am sorry if I am sounding a bit dumb, but what I was trying to understand is this. The need for a Non-Euclidean Geometry was borne out of problems with Euclid's parallel postulate, which here is however proved as a theorem. I wanted to know what is the subtle problem in the definition of a line and parallelism here that still gives scope for the existence of such a geometry. Here line and notion of parallelism are the axiomatic concepts, so there should be something lacking there??
Nov
18
comment General definition of a line
So the "t" in the definition can be from some other field than $R$?? I don't know how much sense that makes as $R$ has some special properties. Also, is this geometrical setup complete? I mean as the definition involves an arbitrary vector space, how does one arrive at a Non-Euclidean Geometry?
Nov
18
asked General definition of a line
Nov
11
comment Difference between two alternative definitions of a differentiable manifold.
That's what i thought too, apart from the fact that it allows new entrants to visualise the construction of 2-D surfaces better. Thanks a lot anyways, I'll just a wait a little longer to see if anyone comes up with anything else.
Nov
11
asked Difference between two alternative definitions of a differentiable manifold.
Nov
4
awarded  Tumbleweed
Oct
30
comment Explanation about frames as distinct from a co-ordinate system
Thanks, that is as close to an answer I was hoping for. Can you add anything about Frenet frame or moving frame though, as to how exactly they fit in into the scheme of things?
Oct
30
asked Explanation about frames as distinct from a co-ordinate system