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bio website math.ethz.ch/~blatter
location Switzerland
age 79
visits member for 4 years, 1 month
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Sep
28
revised How can I find the value of this integral involving limit?
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Sep
28
answered How can I find the value of this integral involving limit?
Sep
28
revised A is an infinite set and $S$ is a countable subset of $A$. $B$ is another countable set, then prove that $A \cup B$ is bijective with $A$
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Sep
28
revised How could I improve this approximation?
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Sep
26
answered How could I improve this approximation?
Sep
26
comment Lists vs Sets in linear algebra
They all use lists. How can you even define linear (in)dependence without numbering the vectors at stake? –Another point: If $a$ is a nonzero vector then the set $\{a\}$ is linearly independent, but the two vectors $x:=a$ and $y=a$ are linearly dependent, even though $\{x,y\}=\{a\}$.
Sep
26
comment Differentiation - a technical point
To me, both sides of the equation are unintelligible.
Sep
26
revised A is an infinite set and $S$ is a countable subset of $A$. $B$ is another countable set, then prove that $A \cup B$ is bijective with $A$
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Sep
25
revised A is an infinite set and $S$ is a countable subset of $A$. $B$ is another countable set, then prove that $A \cup B$ is bijective with $A$
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Sep
25
answered A is an infinite set and $S$ is a countable subset of $A$. $B$ is another countable set, then prove that $A \cup B$ is bijective with $A$
Sep
25
answered Understanding of the formal and intuitive definition of a limit
Sep
25
comment complex analysis, proof, why does this follow from uniform continuity
To be of help in this question you need an inequality which goes the opposite way.
Sep
25
answered Limit of $a_{n+1}=\frac{2a_n^3}{1+a_n^4}$
Sep
25
answered complex analysis, proof, why does this follow from uniform continuity
Sep
25
comment Prove the following function is differentiable
@WeierstraßRamirez: See my edit. I have changed to your notation. Note that $f$ is not vector-valued.
Sep
25
revised Prove the following function is differentiable
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Sep
25
answered The set of all segments is convex
Sep
24
answered Prove the following function is differentiable
Sep
23
awarded  Nice Answer
Sep
22
revised Is T well-defined? Find the matrix representation.
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