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Vectornaut's user avatar
Vectornaut's user avatar
Vectornaut
  • Member for 12 years, 9 months
  • Last seen this week
47 votes
Accepted

Proof for the curl of a curl of a vector field

33 votes
Accepted

How do you explain what a hyperbolic PDE is...?

30 votes
Accepted

How to think of a set?

26 votes

Why do we care about two subgroups being conjugate?

24 votes

Why is the Kullback-Leibler divergence not symmetric?

23 votes

Why does this matrix give the derivative of a function?

18 votes

How to get the aspect ratio of an image?

15 votes
Accepted

What is the most general notion of "Fourier transform?"

14 votes

When trying to learn analysis from bottom up, what numbers should I first construct?

12 votes

Numbers to the Power of Zero

12 votes

Why do both sine and cosine exist?

12 votes

Different arrows in set theory: $\rightarrow$ and $\mapsto$

12 votes

What really is mathematical rigor? How can I be more rigorous?

10 votes

Math problems that are impossible to solve

10 votes

Proving that a complex number is real

9 votes

Is a proof also "evidence"?

7 votes

Analogy to the purpose of Taylor series

7 votes

Can I think of Algebra like this?

6 votes
Accepted

What's the name of a parabola mapped onto a sphere?

5 votes

Why is calculating the area under a curve required or rather what usage it would provide

5 votes
Accepted

Is there a system of mathematics where everything is a function?

5 votes

Find an increasing sequence of rationals that converges to $\pi$

5 votes

Visualizing the factorial

4 votes

Problem when integrating $e^x / x$.

4 votes

What is Birkhoff's ergodic theorem for $GL_n$?

4 votes

What exactly IS a square root?

4 votes

A continous map between the two torus and the torus

3 votes

The physical meaning of the tensor product

3 votes
Accepted

The caret ^ symbol means exponentiation informally in math. Why not a symbol for log too?

3 votes

Why does the derivative of sine only work for radians?