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# Chien-Chia Huang

Active since 2011

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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 ...

circa 8 anni ago | 0 answers | 0

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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

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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

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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

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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

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Question

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

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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...

circa 11 anni ago | 2 answers | 0

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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...

circa 11 anni ago | 1 answer | 0