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seen Apr 15 at 14:53

University of Florence


Mar
16
answered continuous monotonic function
Mar
16
revised Does the little-oh relation remain if $f(x)$ and $g(x)$ both integrate or differentiate?
added 234 characters in body
Mar
16
answered Homeomorphism on the unit circle
Mar
16
answered Does the little-oh relation remain if $f(x)$ and $g(x)$ both integrate or differentiate?
Mar
16
answered Integration of $\frac{1}{\log(x)}$
Mar
16
reviewed Approve suggested edit on A question on simple and unital $C^\star$-algebra
Mar
15
answered Question about Eulers formula $v - e + f = 2$
Mar
14
awarded  Great Answer
Mar
13
comment show projection matrix is equal to matrix times its transpose
what does it mean [w1]a?
Mar
13
answered What does 'finite-valued' mean?
Mar
12
comment Tangents and differentiability
Don't mix functions with their graph. The tangent line to the graph of a funtion has slope which is the derivative of the function.
Mar
12
comment About definition of series associated to sequence!
@ГарнакОлэговытц: yes
Mar
12
awarded  Cleanup
Mar
12
revised About definition of series associated to sequence!
rolled back to a previous revision
Mar
12
answered how to prove $e^{A \oplus B} = $$e^A$ $\otimes$ $e^B$ where A and B are matrices? (Kronecker operations)
Mar
12
comment About definition of series associated to sequence!
$S\in [-\infty,+\infty]$.
Mar
12
revised About definition of series associated to sequence!
edited body
Mar
11
comment $f$ is one-to-one with domain $\mathbb{R} - \{ a\} $ implies range $\mathbb{R} - \{ b\} $?
@Unwisdom you are right... that is what I meant. But the OP clearly doesn't know about cardinality, so we shouldn't mention it. I think instead that countable can be understood more easily. The example are however the real interesting point.
Mar
11
answered About definition of series associated to sequence!
Mar
11
answered $f$ is one-to-one with domain $\mathbb{R} - \{ a\} $ implies range $\mathbb{R} - \{ b\} $?