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Albert's user avatar
Albert's user avatar
Albert
  • Member for 6 years, 1 month
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3 votes

What do you call a two-dimensional ray?

3 votes
Accepted

Finding Limit vs Proving Limit of *something*.

2 votes
Accepted

How do the values of $a$ affect definiteness of this matrix $\textbf{A}$?

1 vote

Percent sign after a fraction? Convert to percent

1 vote

Prove that, if they exist, $\text{lcm}(a,b)\gcd(a,b)$ is an associate of $ab$.

1 vote
Accepted

Properties of Weierstrass's elliptic function.

1 vote
Accepted

Superderivative of $G^\infty$ maps $\mathbb{R}^{1,1}_\infty\to\mathbb{R}_\infty$

1 vote
Accepted

How to calculate this fourier series?

1 vote

how can I show that the integral is convergent $\int_1^\infty\ e^{-x} dx$ and that it is equal to $1/e$

0 votes

Matrixes rotations 3 by 3 conjugations rotate around the same angle

0 votes
Accepted

$n$th symmetric power of a superspace

0 votes
Accepted

Let $S = \{1/n, n \in\mathbb N\}$ and we define a function $f : \{0\} \cup S \to \mathbb R$ as the formula below. is this function continuous at $0$?

0 votes

What if we have 2 same local extrema, how do we deal with global extrema?

0 votes

Textbook confusion regarding "supremum" and "infimum" and "lower bound" and "upper bound"