Advanced Math

For the highest-level (post-calculus) math questions that don't fall into any other category.
J
Linear Algebra: uses, in mathematics and otherwise?
Replies
7
Views
3K
mmm4444bot
mmm4444bot
T
cross product with scalars: Given A=4a_x-2a_y+6a_z, find a_x x(cross) A
Replies
1
Views
2K
barrick
B
M
Inverse elements for monoid of all injective real functions together with defined op
Replies
1
Views
1K
barrick
B
C
Linear Algebra: Proving that a matrix is invertible
Replies
0
Views
1K
cancan460
C
E
Combinatorics - identity: sum[0<=k<=n/2](-1)^k binom(n-k,k) 2^(n-2k) = n+1 ...?
Replies
1
Views
3K
stapel
stapel
P
Euler's Identity and i: how to solve e^(pi*i) = -1 for i
Replies
9
Views
2K
Dr.Peterson
Dr.Peterson
S
What does f(u)(t-u) mean in this convolution equation?
Replies
1
Views
1K
Dr.Peterson
Dr.Peterson
B
Functional Equation: f(x)+f(x+1)=(f(x+2))/(x+1)
Replies
4
Views
2K
stapel
stapel
S
Weight factors (values): rho(q_0, q_1) = w_t ||X_0 - X_1|| + w_r f(R_0, R_1)
Replies
1
Views
1K
tkhunny
tkhunny
B
Linear Algebra: For f, g C[0,1], let <f,g>=(integral from 0 to 1) f(x)g(x) dx...
Replies
1
Views
1K
barrick
B
P
Approximated vertex cover algorithm on random graph
Replies
0
Views
1K
paul2834
P
M
Chemistry related calculations
Replies
1
Views
2K
stapel
stapel
M
Discrete convolution: h[n] = a^(n+1) * u[n+1], x[n] = exp(j*w*n) * u[n]
Replies
0
Views
1K
martin336
M
M
convolution and z-Transform
Replies
0
Views
907
martin336
M
R
Dsolve Perturbation n'(1-epsilon(u')^2)=-y with mathematica
Replies
1
Views
2K
Deleted member 4993
D
N
Linear Algebra Matrix Representation: 1->3, X->2X-1, X^2->X^2-X-1
Replies
1
Views
2K
stapel
stapel
W
Sorting integers into 3 equal (almost) groups
Replies
8
Views
3K
Dr.Peterson
Dr.Peterson
S
Proof by induction: For finite sets A, B w/ cardinality n, m >= 1, show there are...
Replies
1
Views
2K
barrick
B
E
Prove that, for X*Y = {x*y : x in X, y in Y}, we have inf{X*Y} = inf X* inf Y and...
Replies
1
Views
2K
stapel
stapel
C
Matrix Triangularisation/Gauss Jordan Reduction with complex number + eulars formula
Replies
2
Views
2K
stapel
stapel
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