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University of Florence


2h
revised Can a convex polygon inside a square with edge length 1 have a perimeter > 4?
added 414 characters in body
2h
revised Can a convex polygon inside a square with edge length 1 have a perimeter > 4?
edited body
2h
comment Can a convex polygon inside a square with edge length 1 have a perimeter > 4?
The projection map is the map which sends every point of the plane into the closest point on the convex set.
3h
answered Can a convex polygon inside a square with edge length 1 have a perimeter > 4?
9h
revised Significance of starting the Fibonacci sequence with 0, 1…
typo
1d
answered How find all possible lengths of AD Quadrilateral ABCD?
1d
answered Can a countably infinite set be dense in $\mathbb{R}^2$?
2d
comment (Dis)continuity of function in $R^2$
You have to carefully identify what is the boundary of the set $\{(x,y) \colon x^2>2+x \wedge y<6 \}$. In this case you find that this boundary is composed by four half-lines.
2d
answered Find range of values
2d
answered Are there any well known mathematicians who published very little?
2d
answered (Dis)continuity of function in $R^2$
2d
comment (Dis)continuity of function in $R^2$
Ok, so $\wedge$ is an and not a min as I thought!... :-)
2d
comment (Dis)continuity of function in $R^2$
I find it strange to write something like $A > B < C$... are you sure?
2d
revised Minima point is a solution point
added 306 characters in body
2d
revised Minima point is a solution point
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2d
answered Minima point is a solution point
Jul
14
comment What will be probability of this problem?
@Did: you are right. Hope it is corrected now.
Jul
14
revised What will be probability of this problem?
pair -> couple
Jul
13
comment Pythagorean triple means
you mean H^2 + G^2 = A^2
Jul
12
revised Is it differentiable?
added 895 characters in body