Profile Activity Vote Summary All Communities

Derek Elkins‭

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

Posts

See all 50 »

86%

+11 −0

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

posted 3y ago by Derek Elkins‭ · edited 3y 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 4y 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 2y ago by Derek Elkins‭ · edited 2y 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 4y 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 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

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 1y ago by Derek Elkins‭ · edited 1y ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A How to find a point on a vector equation with another vector equation and perpendicular distance?

posted 12mo ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A Why does the method of separating variables work?

posted 11mo ago by Derek Elkins‭

Answer

75%

+4 −0

Q&A How to validate if the horizontal and vertical tangent lines exist for implicit functions?

posted 5mo ago by Derek Elkins‭

Answer

See all 50 »

Reputation		1604
Number of top-level posts		2
Number of answers		48
Sum of received votes (up minus down)		165
Number of edits made		25

Earned Abilities

Statistics

Posts
Count		50
Questions		2
Answers		48
Articles		0

Votes cast
Count		66

Flags raised
Count		0