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Chien-Chia Huang


Active since 2011

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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 ...

circa 8 anni ago | 0 answers | 0

0

answers

Question


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...

circa 8 anni ago | 1 answer | 0

1

answer

Question


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 ==...

oltre 10 anni ago | 1 answer | 0

1

answer

Question


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...

oltre 10 anni ago | 2 answers | 0

2

answers

Answered
Why 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...

oltre 10 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...

oltre 10 anni ago | 2 answers | 1

2

answers

Question


matrix pre-allocation
What's actually the difference between the following commands sparse(zeros(10000)); sparse([],[],[],10000,10000,0); ...

oltre 10 anni ago | 2 answers | 1

2

answers

Question


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...

oltre 10 anni ago | 2 answers | 0

2

answers

Question


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...

oltre 10 anni ago | 1 answer | 0

1

answer

Question


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...

oltre 10 anni ago | 1 answer | 0

1

answer