housing2006's articles:

Items(115) /12 Next >> Last >|

how to prove the Parseval theorem in Fourier theory? 1 79 (10/10/2007 6:30:43 AM) comp.dsp I was looking for the proof of Parseval theorem for the two function version: int(f(x)*g_(x))=int(F_(u)*G(u)) where "_" denotes the complex conjugate... Could anybody show me some rigorous proof for it? Th... Wowow

what's the Fourier transform of this function? 1 31 (10/10/2007 6:28:13 AM) comp.dsp Suppose I have a function f(u), and define g(s)=int(f(u), u from -inf to s), what is the Fourier transform of this function? I could see it may need some additional conditions, or generalized Fourier transfo... Wowow

seeking intergrator on data points... 5 27 (9/10/2007 2:39:40 AM) comp.soft-sys.matlab Hi all, I am looking for an integrator on data points in Matlab. (In effect, it is a combined version of interpolation then integration, or interpolation during intergration...) Of course there are many imp... Housing

seeking quadratic interpolation in Matlab? 8 88 (9/10/2007 2:25:11 AM) comp.soft-sys.matlab Hi all, Does anybody have quadratic interpolation in Matlab? I searched for it in Matlab built-in functions, surprisingly Matlab doesn't provide a quadratic interpolation function. Thanks! ... Housing

Does "clear mex" automatically delete dynamic memory created during its execution? 0 43 (9/9/2007 10:39:32 PM) comp.soft-sys.matlab Hi all, If in mex dll program, I have created some dynamic variable, such as a big array, etc. Will all the memory associated with the mex dll program be deleted and the memory be returned to the system whe... Housing

Help! Why did Matlab's fmincon stop after only 2 iterations? 2 67 (9/7/2007 2:43:08 AM) comp.soft-sys.matlab Dear all, Please help me. I don't know what's wrong with my optimization code. I am using Matlab's fmincon. All of a sudden the solver doesn't work. No matter where I set the starting point, it always finis... Gino

Does anybody know a way to write out variables as MAT file in MEX DLL program? 2 42 (9/5/2007 5:02:06 AM) comp.soft-sys.matlab Hi all, In Mex Dll c program, how do I save variables using MAT format so later I can open and view them in Matlab? Thanks! ... Gino

Does anybody know a non-linearly inequality constrainted non-linear least square solver called ENLSIP? 7 30 (9/3/2007 2:12:21 AM) comp.soft-sys.matlab I saw in some previous posts people mentioned about it. I've looked into it from the decision tree - it is very old and there is no documentation, no tutorial, etc., only Fortran code. I don't know how to us... Gino

using discontinuous function as objective function in optimization 11 50 (9/2/2007 10:56:42 PM) comp.soft-sys.matlab HI all, In my LSQ optimization problem, the objective function is defined by f(x) = sum( (d_i - g_i(x))^2, i from 1 to n), where d_i's are data points and g_i(x) are fitted values. The goal above is to find... Gino

How to solve this type of optimization problem? 5 32 (9/2/2007 6:33:11 PM) comp.soft-sys.matlab Hi all, In my application, I need to solve the following optimization problem. There is no single objective function, and the goal is not to minimize the objective function, but the following: f(x)=sum( w_i... Gino

housing2006's replies:

Items(60) /6 Next >> Last >|

seeking intergrator on data points... 5 27 (9/10/2007 2:39:40 AM) comp.soft-sys.matlab Hi all, I am looking for an integrator on data points in Matlab. (In effect, it is a combined version of interpolation then integration, or interpolation during intergration...) Of course there are many imp... housing2006 (283)

seeking quadratic interpolation in Matlab? 8 88 (9/10/2007 2:25:11 AM) comp.soft-sys.matlab Hi all, Does anybody have quadratic interpolation in Matlab? I searched for it in Matlab built-in functions, surprisingly Matlab doesn't provide a quadratic interpolation function. Thanks! ... housing2006 (283)

Does anybody know a non-linearly inequality constrainted non-linear least square solver called ENLSIP? 7 30 (9/3/2007 2:12:21 AM) comp.soft-sys.matlab I saw in some previous posts people mentioned about it. I've looked into it from the decision tree - it is very old and there is no documentation, no tutorial, etc., only Fortran code. I don't know how to us... housing2006 (283)

using discontinuous function as objective function in optimization 11 50 (9/2/2007 10:56:42 PM) comp.soft-sys.matlab HI all, In my LSQ optimization problem, the objective function is defined by f(x) = sum( (d_i - g_i(x))^2, i from 1 to n), where d_i's are data points and g_i(x) are fitted values. The goal above is to find... housing2006 (283)

How to solve this type of optimization problem? 5 32 (9/2/2007 6:33:11 PM) comp.soft-sys.matlab Hi all, In my application, I need to solve the following optimization problem. There is no single objective function, and the goal is not to minimize the objective function, but the following: f(x)=sum( w_i... housing2006 (283)

What do you do if you have a very stringent constraint? 14 30 (9/2/2007 5:00:19 AM) comp.soft-sys.matlab Hi all, If in a nonlinear minimization problem, one of the constraint is very stringent and actually 99% of the parameter space is infeasible. Simulated Annealing failed and complained about "too many infeas... housing2006 (283)

Has somebody writen a function explorer? 4 42 (5/10/2007 11:44:21 PM) comp.soft-sys.matlab Say you have a function, w=f(x, y, z), how do you visualize it? I would imagine somebody could design a function explorer, with those 3D game or virtual reality effects, and people can visualize such a funct... housing2006 (283)

Is there a way to automatically print a source file from Matlab? 6 49 (5/10/2007 4:39:52 AM) comp.soft-sys.matlab Hi all, Is there a way to do the following: print('myfile.m'); will print out the "myfile.m" to the default printer with default configurations... How can I do that from within Matlab? ... housing2006 (283)

how to ensure that a vector is a column vector or row vector? 11 36 (5/10/2007 2:55:22 AM) comp.soft-sys.matlab I don't have to ask this if the Matlab is smart enough; but it isn't. for example, x./y if x is a row vector and y is column vector, or vice versa, the Matlab will report error... So I want to know a way t... housing2006 (283)

something like a convolution, how to do it fast in Matlab? 18 39 (5/10/2007 2:28:32 AM) comp.soft-sys.matlab Hi all, I am facing with the following computations: x_n = a1 + a2 * d_n + a3* x_{n-1} where d_n are some input stream of data; and x_n is built recursively, starting from x_0=0. Is there a way to do the a... housing2006 (283)