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Question
ODE23/45 for 2-dimensional solution and alternatives?
Hello there, Per the help document for ODE23/45, there is no way to get a 2-element solution even if I input tspan which has ...
oltre 8 anni ago | 0 answers | 0
0
answersQuestion
Finding a root with interval constraint
Hello there! I am trying to find a point x within the time interval [t-1,t] (for some t, say t = 3) so that the function atta...
oltre 8 anni ago | 1 answer | 0
1
answerQuestion
Error: Inner matrix dimensions must agree.
Hi, I am using "gamultiobj" to solve my problem. I, however, have no idea why the error message occurred ??? Error using ==...
circa 11 anni ago | 1 answer | 0
1
answerQuestion
function setup in fmincon
Hi there, my problem is how to set up the function using function handle in fmincon. The objective function is quadratic and th...
circa 11 anni ago | 2 answers | 0
2
answersWhy do you come to "MATLAB Answers"?
*abef* and, when well trained, *c*. "MATLAB Answers" is a great place where I get surprised coz being here I'm always like a la...
circa 11 anni ago | 1
Question
Cholesky factorization on symbolic matrix
Hi all, I want to use Cholesky factorization on some symbolic matrices but I am still working with R2007b, quite an old versi...
circa 11 anni ago | 2 answers | 1
2
answersQuestion
matrix pre-allocation
What's actually the difference between the following commands sparse(zeros(10000)); sparse([],[],[],10000,10000,0); ...
circa 11 anni ago | 2 answers | 1
2
answersQuestion
sequence grouping
Hi all, I am trying to construct a few groups from a given sequence by giving some pivots, one or more. For example, a = 1:1...
circa 11 anni ago | 2 answers | 0
2
answersQuestion
generate an array according to some sequence
Suppose I have an array [4 2 1 3] (length = 4) and I want to generate another array of length 6(= 0.5*4*(4-1)). The vlaues of...
circa 11 anni ago | 1 answer | 0
1
answerQuestion
how to put an array into a matrix
Hi there! the function "triu(X,1)" returns the upper trangular part of the matrix X. I now have an array of size 1-by-(0.5*n...
circa 11 anni ago | 1 answer | 0