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visits member for 3 years, 4 months
seen Jun 10 at 13:36

Learning from scratch.


Sep
18
accepted Linear Algebra Problem
Sep
18
revised Linear Algebra Problem
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Sep
18
asked Linear Algebra Problem
Sep
18
comment Does $\lim_{x\rightarrow 0}\frac{c}{|x|}$ exist?
Your calculus textbook does warn you about the case $g(x)\neq 0$ so why consider it?
Sep
17
comment Intuition behind this theorem in linear algebra
@Arturo what do you mean by: "... vector space is free on the basis"
Sep
17
comment Intuition behind this theorem in linear algebra
Reference: Page 95 , 2nd Ed. Page 56 in third edition, here is the preview
Sep
17
asked Intuition behind this theorem in linear algebra
Sep
17
revised How could we manually approximate $\sum_{i=1}^{50} i! = 3.1035 \times 10^{64}$?
edited tags
Sep
17
answered How could we manually approximate $\sum_{i=1}^{50} i! = 3.1035 \times 10^{64}$?
Sep
16
comment Is the extra condition in this definition superfluous?
@Srivatsan if it is not finite then we cannot conclude that $0\cdot c =0$ and the argument won't stand.
Sep
16
comment Is the extra condition in this definition superfluous?
@Srivatsan Yes. So I guess this person's argument is right. The statement should be that order is the minimum $n$ for which the stated limit is non zero and finite.
Sep
16
comment Is the extra condition in this definition superfluous?
@Srivatsan why not? It uses the fact that the limit for $k=n+1$ is $c\neq 0$ to show that the limit would be zero for every $k\leq n$. Re: additional comment, I agree, specially after seeing this argument. I need a confirmation that nothing fishy is going on as this refutes an argument presented in two books.
Sep
15
revised Is the extra condition in this definition superfluous?
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Sep
15
answered How to prove that $\sqrt 3$ is an irrational number?
Sep
14
revised Is the extra condition in this definition superfluous?
added 14 characters in body
Sep
14
accepted Proof that a bijection has unique two-sided inverse
Sep
14
revised Is the extra condition in this definition superfluous?
added 231 characters in body
Sep
14
asked Is the extra condition in this definition superfluous?
Sep
14
comment Finding limit of $\lim\limits_{h\to 0} \frac1{h}\left(\frac1{\sqrt{x+h-2}}-\frac1{\sqrt{x-2}}\right)$
@Srivatsan Thanks. I edited my answer.
Sep
13
revised Finding limit of $\lim\limits_{h\to 0} \frac1{h}\left(\frac1{\sqrt{x+h-2}}-\frac1{\sqrt{x-2}}\right)$
edited body