Answered

Identify nodes which lie within a range of 3D volumes

Try this % preallocation idx = cell(size(Vertices,3),1); % for each box for i = 1:size(Vertices,3) % find box min and...

Identify nodes which lie within a range of 3D volumes

Try this % preallocation idx = cell(size(Vertices,3),1); % for each box for i = 1:size(Vertices,3) % find box min and...

11 giorni ago | 0

Answered

Find center of a plane and project center point perpendicular to plane

As already pointed out by Walter Roberson, 4 points cannot be coplanar. Assuming that they are, you may try this clear variable...

Find center of a plane and project center point perpendicular to plane

As already pointed out by Walter Roberson, 4 points cannot be coplanar. Assuming that they are, you may try this clear variable...

18 giorni ago | 2

| accepted

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 mesi 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...

2 mesi 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...

2 mesi 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...

6 mesi 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(...

circa 2 anni 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 =...

oltre 2 anni 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...

oltre 2 anni 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); ...

oltre 2 anni 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...

circa 3 anni 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...

circa 3 anni 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 ...

oltre 3 anni ago | 3 answers | 0

Submitted

int_green3d

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

oltre 3 anni ago | 5 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...

circa 4 anni 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...

circa 4 anni 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

circa 4 anni 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

circa 4 anni 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...

circa 4 anni 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?

circa 4 anni 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 ?

circa 5 anni 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

circa 5 anni 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

circa 5 anni 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...

circa 5 anni 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: ...

circa 5 anni 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...

circa 5 anni ago | 0 answers | 0