Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
S
Interpolation
Replies
1
Views
541
tkhunny
tkhunny
Z
Prime pattern: all prime numbers are a multiple of 2520, plus a prime less than 2520
Replies
7
Views
879
Zaneh
Z
H
Linear Algebra: null space of a matrix
Replies
0
Views
646
horselurrver
H
M
How to take floor function out?
Replies
6
Views
2K
Dr.Peterson
Dr.Peterson
M
Elementary logic: ...therefore, ~(B ▼ P) → ~(A ▼ E
Replies
6
Views
825
Mariellow
M
D
schlomilch test proof
Replies
4
Views
984
mmm4444bot
mmm4444bot
L
definition and continuenty of an inverse function using delta and epsilon
Replies
3
Views
613
pka
pka
P
A simple number theory problem that drives me insane
Replies
7
Views
980
PapaKurke
P
D
I need examples of series that can be examined by this convergence tests: Gauss, Raabe, schlomilch, bertrand. With answers
Replies
2
Views
752
Deleted member 4993
D
P
Linear algebra: For which values of 'a' are P = (-1, 1, 2), Q = (0, a, 1), R = (a, 4, -1) and S = (-11, -1, 0) corners of a tetrahedron?
Replies
7
Views
1K
Dr.Peterson
Dr.Peterson
H
Linear Algebra Rank of a Matrix Problem: Prove that a(k) array is monotonically increasing
Replies
2
Views
630
Heeyeyey
H
R
Concurrency on time: If I have a machine which it can execute multiple jobs on concurrent time....
Replies
0
Views
554
Ryan$
R
Steven G
Proof that QXQ is countable infinite
Replies
2
Views
6K
lookagain
L
A
Continuity/Discrete, Point vs Unit, Infinity question
Replies
9
Views
1K
HallsofIvy
H
K
Linear Algebra - Domain or co-domain for matrix A=[1,2;2,1;1,1] ?
Replies
2
Views
2K
KindofSlow
K
Steven G
Proof verification: Let U be some universal set. Define relation on P(U) by A ~ B iff A and B have same cardinality....
Replies
8
Views
1K
pka
pka
J
A spinning point: If a mathematical point has no dimensions, can it still spin?
Replies
4
Views
706
JeffM
J
J
Analysis of column load question for a concrete floor
Replies
0
Views
931
JimCrown
J
E
weird series: Z_3 = 1/2, Z_n= Z_{n+1}/[cos(pi/n)]. It's a bizarre suite decreasing to 0 without ever going.
Replies
1
Views
785
HallsofIvy
H
C
Let X, Y, Z be sets, X not empty, X-cross-Y = X-cross-Z. Prove Y = Z. Clearly show use of "X not empty"
Replies
5
Views
1K
HallsofIvy
H
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