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age 19
visits member for 2 years, 10 months
seen Jun 28 at 8:20

Nothing special about me. I am interested in physics and mathematics


Jul
2
awarded  Curious
May
27
comment A case of borel cantelli lemma
@user3001408 Could you tell me in what way should I format ?
May
26
asked A case of borel cantelli lemma
Apr
10
comment Tangent definition
@amWhy Sorry ..I meant any other point which is (pi)/2 +(integral multiple of 2(pi) )..
Apr
10
asked Tangent definition
Feb
10
awarded  Notable Question
Sep
19
comment Cylindrical coordinate system
@Ross : Is there anything for which the book doesn't mention about the sufficiency of two unit vectors ?
Sep
19
asked Cylindrical coordinate system
Jan
22
asked Sum of non negative powers of 2
Dec
10
awarded  Popular Question
Nov
17
awarded  Tumbleweed
Oct
5
comment Back to cauchy sequences.
@EuYu I can understand what you mean but the unavailability of a formal argument justifying that pricks me.
Oct
5
comment Back to cauchy sequences.
In particular we can replace x(m) by x(nk) in (1). This what I labelled as (2).
Oct
5
comment Back to cauchy sequences.
@HagenvonEitzen In that case the proof collapses to failure.
Oct
5
comment Back to cauchy sequences.
that we can find X(nk) beyond any given value of n,i.e. given any n the set P(nk) ={ X(nk) occurring after X(n)} is non empty
Oct
5
comment Back to cauchy sequences.
I hope you can prove that the terms of the sub sequence are well distributed throughout the sequence.
Oct
5
asked Back to cauchy sequences.
Sep
24
accepted limit of functions of two variables
Sep
24
comment limit of functions of two variables
@PerManne I hope you won't mind illustrating it in case of f(x,y)= x^3.y^4 as it tends to a definite point.
Sep
24
comment limit of functions of two variables
@Siminore Could you answer the question that I have written in reply to Per Manne ?