Answered

How to fix an error about struct input of an function in Matlab?

It looks like you are passing the wrong data to the function. The first input must be a structure generated by the function SVMT...

How to fix an error about struct input of an function in Matlab?

It looks like you are passing the wrong data to the function. The first input must be a structure generated by the function SVMT...

2 days ago | 0

Answered

How to compare two matrices of different dimentions and get the result in new column

Try this % find logical indices in A with 2000 idxLog = A == 2000; % create the new vector with B values in idxLog and zero...

How to compare two matrices of different dimentions and get the result in new column

Try this % find logical indices in A with 2000 idxLog = A == 2000; % create the new vector with B values in idxLog and zero...

3 days ago | 0

Question

Quadprog 'interior-point-convex' failure

Dear Matlab Gurus, I have a problem with Matlab quadprog function. A few years ago I implemented a code using quadprog with th...

4 days ago | 3 answers | 1

Question

symbolic derivative with constant output

Hi everyone, I am working on a code requiring the definition of an anonymous function that is the derivative of another anonymo...

4 months ago | 1 answer | 0

Question

Create symbolic matrix from triplets with repeated indices

Hi everyone, I am trying to build a symbolic matrix from the triplets iRow, jCol, aElm such that A(iRow(k),jCol(k)) = A(...

2 years ago | 2 answers | 0

Answered

Combine several code to a single code

Try |arrayfun| % the data X0=[5; -3; 3] y=[45;45;45] p=[30;30;30] r=[50;50;50] % the operation X1 =...

Combine several code to a single code

Try |arrayfun| % the data X0=[5; -3; 3] y=[45;45;45] p=[30;30;30] r=[50;50;50] % the operation X1 =...

2 years ago | 0

Question

Rotation that maximises a vector length

Hi all, I have a problem that is more related to linear algebra than Matlab itself, even if I would like to solve it with Mat...

2 years ago | 0 answers | 0

Answered

Rebuild a matrix from indices

Try linear indexing % the data A = [0 2 2 0 0 ; 2 0 0 2 2 ; 0 2 0 2 2 ; 0 0 0 2 2 ; 2 2 0 2 2]; [i,j] = find(A==2); ...

Rebuild a matrix from indices

Try linear indexing % the data A = [0 2 2 0 0 ; 2 0 0 2 2 ; 0 2 0 2 2 ; 0 0 0 2 2 ; 2 2 0 2 2]; [i,j] = find(A==2); ...

2 years ago | 0

| accepted

Answered

How can i repeatedly store a smaller matrices after manipulations in a specific place of a larger matrix.

I think your first matrix should be 360x720 (and indexing starts with 1). Try this % create the matrices A = rand(360,72...

How can i repeatedly store a smaller matrices after manipulations in a specific place of a larger matrix.

I think your first matrix should be 360x720 (and indexing starts with 1). Try this % create the matrices A = rand(360,72...

2 years ago | 0

Solved

Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years ago

Question

implementation of subclass from triangulation

Hi everyone, I am trying to implement a derived class from the 'triangulation' class available in Matlab 2014. The aim is to ...

3 years ago | 3 answers | 0

Submitted

int_green3d

Analytical integration of the Green's function in 3d over plane surfaces

3 years ago | 4 downloads |

Question

GPU computing on iMac

Hi everyone, I would like to buy an iMac mounting an NVIDIA GeForce GT 755M board, but I am not sure if this hardware meets t...

4 years ago | 1 answer | 0

Answered

How can I successfully solve a certain huge sparse matrix; i.e., 8e6 x 8e6 entries?

Sorry for late reply, I am on holiday! The method is described here O. Axelsson, A. Kucherov, "Real valued iterative metho...

How can I successfully solve a certain huge sparse matrix; i.e., 8e6 x 8e6 entries?

Sorry for late reply, I am on holiday! The method is described here O. Axelsson, A. Kucherov, "Real valued iterative metho...

4 years ago | 0

| accepted

Answered

How can I successfully solve a certain huge sparse matrix; i.e., 8e6 x 8e6 entries?

Chris, is the matrix complex symmetric (not-hermitian)? If so I think I have a possible solution to try. Fabio

How can I successfully solve a certain huge sparse matrix; i.e., 8e6 x 8e6 entries?

Chris, is the matrix complex symmetric (not-hermitian)? If so I think I have a possible solution to try. Fabio

4 years ago | 0

Answered

automatically cycle through function inputs

use varargin: function name(varargin) for i = 1:nargin figure(i), plot(varargin{1}); end end

automatically cycle through function inputs

use varargin: function name(varargin) for i = 1:nargin figure(i), plot(varargin{1}); end end

4 years ago | 0

Answered

Eliminating unnecessary portions of arrays from structure.

If I understand correctly you want something like this idx = find(data(1).IAS >= 290 & data(1).IAS <= 310); plot(data(1).A...

Eliminating unnecessary portions of arrays from structure.

If I understand correctly you want something like this idx = find(data(1).IAS >= 290 & data(1).IAS <= 310); plot(data(1).A...

4 years ago | 0

| accepted

Answered

Interpolating points of a 3D point cloud

Does triscatteredinterp make the job?

Interpolating points of a 3D point cloud

Does triscatteredinterp make the job?

4 years ago | 0

Answered

how to use copy options in matlab for mac?

can you use: Edit -> Copy Figure ?

how to use copy options in matlab for mac?

can you use: Edit -> Copy Figure ?

5 years ago | 0

Answered

find missing elements in a matrix

Try this A=[1 2 3 6 7 45 46 47 53 78 80]; all = 1:80; missing = setdiff(all,A); Fabio

find missing elements in a matrix

Try this A=[1 2 3 6 7 45 46 47 53 78 80]; all = 1:80; missing = setdiff(all,A); Fabio

5 years ago | 0

Answered

MATLAB in unexpected places

<http://www.phdcomics.com/comics/archive.php?comicid=1289> second scene

MATLAB in unexpected places

<http://www.phdcomics.com/comics/archive.php?comicid=1289> second scene

5 years ago | 1

Question

Iterative solver with gpuArray

Hi all, In some cases the use of iterative solvers is useful also with full matrices, which is my case. I would like to use a...

5 years ago | 2 answers | 1

Answered

Color a delaunay triangulation

Let's suppose that your triangulation is organized as follows * P: Nx2: node coordinates * T: Mx3: triangulation * F: Mx1: ...

Color a delaunay triangulation

Let's suppose that your triangulation is organized as follows * P: Nx2: node coordinates * T: Mx3: triangulation * F: Mx1: ...

5 years ago | 0

| accepted

Question

Sparse complex symmetric direct solver for windows

Hi everyone, I am looking for a dedicated direct solver for large sparse complex symmetric (not hermitian) systems. The problem...

5 years ago | 0 answers | 0