Derek Elkins‭

Profile Activity Vote Summary All Communities

A quiet enigma. We don't know anything about Derek Elkins‭ yet.

Posts

See all 49 »

85%

+10 −0

Q&A Complex numbers in 2D, quaternions in 4D, why nothing in 3D?

posted 2y ago by Derek Elkins‭ · edited 2y ago by Derek Elkins‭

Answer

81%

+7 −0

Q&A Does every divergence-free vector field arise as the curl of some vector field?

posted 4y ago by Derek Elkins‭ · edited 3y ago by Derek Elkins‭

Answer

81%

+7 −0

Q&A What is the Name of Function for Probability of a Certain Sum on Random Die Rolls?

posted 2y ago by Derek Elkins‭

Answer

80%

+6 −0

Q&A Existence of a set of all sets

posted 4y ago by Derek Elkins‭ · edited 4y ago by Derek Elkins‭

Answer

80%

+6 −0

Q&A Why does “unless” mean “if not”?

posted 4y ago by Derek Elkins‭

Answer

80%

+6 −0

Q&A Average distance from circle's center to a point

posted 1y ago by Derek Elkins‭ · edited 1y ago by TheCodidacter, or rather ACodidacter‭

Answer

77%

+5 −0

Q&A Why always rationalize a denominator?

posted 4y ago by Derek Elkins‭

Answer

77%

+5 −0

Meta Can this site contains Physics's Math question?

posted 3y ago by Derek Elkins‭

Answer

77%

+5 −0

Q&A What're the orders for equation expressing?

posted 3y ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A Can we constructively find a third element of a set $X$ satisfying $X \cong X \times X$ given two distinct elements?

0 answers · posted 4y ago by Derek Elkins‭

Question constructive-logic type-theory

75%

+4 −0

Q&A Why does this definition of generalized forces work?

posted 4y ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A Proving that $p\mid (p+1776)$ if $p$ is a prime and $p(p+1776)$ is a perfect square

posted 2y ago by Derek Elkins‭

Answer

75%

+4 −0

Meta Should posting on Meta affect reputation?

posted 1y ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A Picture proof for expansion of $x^n−y^n$

posted 1y ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A Prove that $\forall x\in\Bbb R:\lfloor x^2\rfloor-\lfloor rx\rfloor\ge-1\iff|r|\le2$.

posted 8mo ago by Derek Elkins‭ · edited 8mo ago by Derek Elkins‭

Answer

See all 49 »

Reputation		1554
Number of top-level posts		2
Number of answers		47
Sum of received votes (up minus down)		160
Number of edits made		24

Earned Abilities

Statistics

Posts
Count		49
Questions		2
Answers		47
Articles		0

Votes cast
Count		65

Flags raised
Count		0