#math notation

[then-ponder]

One aspect about being a mathematician in a physics class, is that people will say something nebulous like radians are a unit less and in the back of my head I have to be like no it’s actually meter per meter. But I’m not allowed to say that

[risotto38]

an example of Kinskan math! this is a quartic equation that I attempted to figure out

[then-ponder]

Rate your favorite logic notation

Which is the best logic notation?

Math [∧, ∨, ¬ ]

Computer Science [&&, ||, !]

English[AND, OR, NOT]

Voting ended onAug 16, 2023

[then-ponder]

Time to start a wrestle with the mathematicians

What is your favorite vector product

Geometric product

Dot product

Cross product

Wedge product

Hadamard product

Voting ended onJan 5, 2024

[then-ponder]

Set theorists what is your preferred set notation?

Preferred set notation

{Expression : Rule}

{Rule : Expression}

Voting ended onMay 23, 2024

{Expression : Rule} is the form of{2n : n ∈ ℕ} and is formally expressed as “the set of all thing of the form 2n such that n is an element of ℕ”.

{Rule : Expression} is the form {n ∈ ℕ: 2n} and is formally expressed as “the set of all n in ℕ such that 2n”

[then-ponder]

Such that?

“:”

“|”

S.T.

Voting ended onMay 22, 2024

[then-ponder]

So I was talking about adding dissimilar matrices together: think 3 × 3 and 4 × 2. And it occurred to me that the main problem with those things is that ultimately we assumed the matrixes to represent the same space and not different spaces. For instance ℝ^3 is not necessarily a subset of ℝ^4. It could even be true that ℝ^4 ∩ ℝ^3 = ø.

I don’t think is a problem created by a closed operation as that’s my usual approach to generalizing problems, but I think this approach could be useful. More research needed.

[then-ponder]

While working in combinatorics I noticed that we don’t have a word(seamingly) for a object where order doesn’t matter. I suggest “ordn’t”