Home
Forums
New posts
Search forums
What's new
New posts
Latest activity
Log in
Register
What's new
Search
Search
Everywhere
Threads
This forum
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Free Math Help
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Advanced Math
For the highest-level (post-calculus) math questions that don't fall into any other category.
1
2
3
…
Go to page
Go
292
Next
1 of 292
Go to page
Go
Next
Last
Filters
Show only:
Loading…
T
Locked
Sticky
Read Before Posting!!
Ted
Feb 20, 2006
Replies
0
Views
26K
Feb 20, 2006
Ted
T
T
Need help with truth table: I'm trying to understand WHY, in this table, that X→Z would be true when X is false.
TheQuestor
Mar 22, 2024
Replies
6
Views
157
Wednesday at 9:18 AM
Dr.Peterson
E
Euler's totient function: how to prove |Um*n| = |Um| cross |Un| implies gcd(m,n) =1 where |Um*n| means all numbers <m*n relatively prime to it
elioruzan
Monday at 5:19 AM
Replies
3
Views
151
Monday at 2:14 PM
khansaheb
K
F
combinatorial algorithms: Let M(n,m) denote the complexity of the best algorithm for merging of a1<..<an, b1<..<bm series. Prove that M(3,6) <= 7.
fantastic
Monday at 11:35 AM
Replies
0
Views
37
Monday at 11:35 AM
fantastic
F
I
Difference between A = {(x,y) ∈ (R\Z)²| |x|<2, |y| ≤ 2} and A = {(x,y) ∈ R²\Z² | |x|<2, |y| ≤ 2}
Ingeniosus01
Mar 21, 2024
Replies
1
Views
66
Sunday at 10:10 PM
Dr.Peterson
M
help please
maks
Mar 17, 2024
Replies
1
Views
148
Mar 18, 2024
stapel
O
Prove that (A \ B) ∩ (B \ A) = ∅ using mostly formal logic
Ozma
Mar 17, 2024
Replies
1
Views
171
Mar 17, 2024
blamocur
C
Solve this ("A 35mm diameter steel cable caries a mine skip to a depth of a 625m. The mass of the skip is equal to...")
Chamath Egodage
Mar 5, 2024
Replies
8
Views
248
Mar 10, 2024
khansaheb
K
E
Real analysis: Given A= {b∈ (1, 7) : b ∈ Q^c} how to find its interior, exterior, boundary, isolated, limit and closure.
escullarb
Mar 8, 2024
Replies
1
Views
182
Mar 8, 2024
stapel
E
Check my answer if its correct, Thank you
escullarb
Mar 6, 2024
Replies
8
Views
193
Mar 8, 2024
The Highlander
A
Moments in equilibrium
annaanna
Mar 7, 2024
Replies
7
Views
180
Mar 7, 2024
The Highlander
M
Galois theory (beginner question about normal algebraic extension: Supposedly Z2(X3)⊂Z2(X)Z2(X3)⊂Z2(X) is not a normal alg extension.)
MathNugget
Mar 3, 2024
2
Replies
21
Views
467
Mar 7, 2024
blamocur
E
Proving: Prove that there exist a irrational between two rational.
escullarb
Mar 6, 2024
Replies
1
Views
92
Mar 6, 2024
stapel
E
Real Analysis: Every open set in R is a union of open intervals. Every open set in R is a union of disjoint open sets interval.
escullarb
Mar 6, 2024
Replies
2
Views
104
Mar 6, 2024
stapel
V
Hamingway's Prime Function (one of Hamingway's novels -> 3Blue 1Brown -> Fourier series -> prime-number generator)
Vast3
Jan 18, 2024
Replies
7
Views
437
Mar 5, 2024
Vast3
V
H
Combinatorial game played on a grid (Two players take turns moving a piece to an adjacent square (no diagonal moves)....)
hemph04
Mar 5, 2024
Replies
0
Views
57
Mar 5, 2024
hemph04
H
A
Complex numbers loci problem (Find square roots of 2 + i*sqrt{5}; hence...)
annaanna
Feb 29, 2024
Replies
5
Views
182
Mar 4, 2024
Dr.Peterson
W
Complex equation regarding hearing distance. Multiple variables
Wouter86
Mar 1, 2024
Replies
1
Views
60
Mar 4, 2024
stapel
Y
Complex function question: f(z) is differentiable on region D. Inside D there is a line segment C with end points a and b.
yma16
Mar 2, 2024
Replies
1
Views
150
Mar 2, 2024
The Highlander
Linear Algebra question: Suppose G is a 2x2 matrix with real entries, such that det(G)=+/- 1 and G^2 = - I (I = id 2x2 id matrix)
Steven G
Mar 2, 2024
Replies
2
Views
157
Mar 2, 2024
blamocur
W
Combinatorics: factorials, permutations (Janice creates alphabetical list containing all arrangements of letters in FELINES)
winny
Feb 29, 2024
Replies
1
Views
152
Feb 29, 2024
Dr.Peterson
1
2
3
…
Go to page
Go
292
Next
1 of 292
Go to page
Go
Next
Last
You must log in or register to post here.
Forums
Free Math Help
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top