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Здравствуйте!

I am learning mathematics to help further mathematical development in my country.


Jul
21
asked Prove the reflexivity of $\subseteq$.
Jul
20
asked Is there something that studies equivalent forms of writing and expression?
Jul
16
asked How to turn arbitrary fractions into arbitrary egyptian fractions?
Jul
13
asked What do we lose by differentiating without using the rules of differential calculus?
Jul
12
asked Curiosity about Kronecker's Delta?
Jul
11
asked Does the absence of horizontal lines shows that there are no $n,m\in \mathbb{N}$ such that $n^2=2m^2$?
Jul
10
asked Differentiating $\frac{te^{\tan t}}{ln(3t+1)}$?
Jul
8
asked Where can I find introductory video lectures about calculus and analysis?
Jun
27
asked Are there non-trivial systems of arithmetic in which the order of precedence of the operators does not change the output?
Jun
27
asked What's the importance of a formula for the real and imaginary parts of a complex number?
Jun
23
asked Good textbooks and articles from arXiv for undergraduate students?
Jun
22
asked Introductions to classical and nonclassical logic?
Jun
14
asked Is there a garden of derivatives?
Jun
10
asked $\frac{|| \overline{AM}||}{|| \overline{AB}||}=\frac{|| \overline{AN}||}{|| \overline{AC}||}=\frac{|| \overline{MN}||}{|| \overline{BC}||}$
Jun
10
asked Is Courant's Introduction to Calculus and Analysis still up-to-date?
May
27
asked Why to see that $\overline{B}(x;r)$ is closed if it was just defined?
May
26
asked Are there functions that converge to $P$ when $f:\mathbb{N}\to\mathbb{R}$ and to $Q$ when $f:\mathbb{R}\to\mathbb{R}$ with $Q\neq P$?
May
26
asked On the thought process for choosing $\epsilon$'s to check the convergence of $(-1)^n$?
May
11
asked What are good questions that could be used to demonstrate the nature of mathematics study?
May
8
asked $\mathcal{B}=\{v_1,v_2,v_3\}$ is an orthonormal basis, find all the vectors $v\in \mathbb{R}^3$ such that $\langle v, v_1+v_2-v_3\rangle=0$.