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Question
Optimization problem with Mosek
I want to solve the following problem: Maximize \sum_{i=1}^{n} \log(v_i) subject to v_i \geq 0 and A' v \leq n 1_m, where A is...
plus d'un an il y a | 1 réponse | 0
1
réponseQuestion
Plot a set of points in a standard simplex
How do I plot a 2D standard (probability) simplex (just a plot of an equilater triangle) and plot a set of points (probability ...
presque 2 ans il y a | 2 réponses | 0
2
réponsesQuestion
Select dominated columns in a large matrix
Consider a MxN real valued matrix F with nonnegative elements. I say that a column Fn is dominated if there is another column wh...
environ 2 ans il y a | 1 réponse | 0
1
réponseQuestion
pdf of Poisson binomial distribution in Matlab
Is there a Matlab implementation for the calculation of the pdf for the Poisson-binomial distribution?
environ 2 ans il y a | 1 réponse | 0
1
réponseQuestion
Matlab crashes with large matrix
I need to create a large matrix F=[F1, F2, ... , FN] where each Fn has the same number of rows (about 12,000) but different numb...
environ 2 ans il y a | 2 réponses | 0
2
réponsesQuestion
Going back from cumsum for a matrix
Suppose I cumsum a matrix, say A=rand(3,3); B=cumsum(A). Knowing B, how to I get back to A, in a reasonably efficient way, for ...
environ 3 ans il y a | 1 réponse | 0
1
réponseQuestion
matlab rank of a matrix
Let R=ones(100,100). Obviously, rank(R) returns 1 for an answer. However, rank(R,1e-20), say, returns 17. Why? Thanks!
plus de 3 ans il y a | 2 réponses | 0
2
réponsesQuestion
Birkhoff-von Neumann decomposition of nonnegative doubly stochastic matrices
Hi, I have the following problem: Given a (n \times n) doubly stochastic matrix Q with strictly positive elements, which is a c...
environ 7 ans il y a | 1 réponse | 0
1
réponseQuestion
Simple symbolic system of nonlinear equations
I have a simple system of linear equations such as f(x,y,z)=a g(x,y,z)=b h(x,y,z)=c with f,g,h being specified polyn...
plus de 7 ans il y a | 1 réponse | 0
