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University of Florence


1d
answered How to graph functions without a calculator?
1d
answered Verify my proof: If $X$ is infinite, then there exists $f: \mathbb{N} \rightarrow X$ such that $f$ is injective.
1d
answered Is the dot product valid for coordinate vectors of infinite length?
1d
answered Can I conjugate a complex number: $\sqrt{a+ib}$?
1d
answered Computing $\sum_{i=0}^{\infty}\frac{i}{2^{i+1}}$
1d
answered Min and max of a product.
1d
answered Range of a trigonometric function
Aug
17
answered Show that for $(X,d)$ a metric space, $U= \{x \in X: d(x, C) \leq d(p, C)\}$ is a closed set
Aug
10
answered Can I say that an implicit function of space (3D) always has 3 unknowns?
Aug
7
answered Uniform continuity of a subset of $R$
Aug
1
answered Mathematical proof for order of operations
Jul
22
answered Can a convex polygon inside a square with edge length 1 have a perimeter > 4?
Jul
21
answered How find all possible lengths of AD Quadrilateral ABCD?
Jul
20
answered Find range of values
Jul
20
answered Are there any well known mathematicians who published very little?
Jul
20
answered (Dis)continuity of function in $R^2$
Jul
20
answered Minima point is a solution point
Jul
12
answered Is it differentiable?
Jul
11
answered Does the absence of horizontal lines shows that there are no $n,m\in \mathbb{N}$ such that $n^2=2m^2$?
Jul
11
answered How to calculate the length of a cubic hermite spline between two points