# ADSW121365

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**Content Feed**

how to use the "tight" function for just one axis

Documentated Function: xlim('tight') https://uk.mathworks.com/help/matlab/ref/xlim.html

7 months ago | 1

Question

Numerical Precision Physics Calculations

I believe I may be encountering issues related to the numerical precision, but my understanding is limited so I wanted to ask th...

7 months ago | 1 answer | 0

### 1

answerQuestion

Genetic Algorithm for points External To a Specific Volume

I'm using the GA to select measurement points in a three-dimensional physics problem. I can tell GA to select only N_points ins...

8 months ago | 1 answer | 0

### 1

answerQuestion

Uniquetol which preserves the first occurance

I'm using the uniquetol function to filter some data by rows. Here each column gives a weight value with respect to a specific b...

10 months ago | 1 answer | 0

### 1

answerQuestion

Meshgrid orthogonal to a line in 3D Space

In 3D space, how do I generate a set of points, like a meshgrid, orthogonal to a specific straight line passing through its cent...

10 months ago | 3 answers | 0

### 3

answersQuestion

Searching for closely related filenames in a directory

I'm working on some efficiency based code which essentially will check if a filename exists, and load the file in if it does. I ...

2 years ago | 2 answers | 0

### 2

answersQuestion

Improving Processor Usage In InterpolateSolution from the PDE Toolbox Via Parallel Computing?

I have a set of ~50 saved results structures from the PDE Toolbox, at roughly 7GB each, on which I need to interpolate to differ...

2 years ago | 0 answers | 0

### 0

answersQuestion

Saving Specific Figure Handle For Recovery After Plotting Many Figures

I'm writing quite a complicated simulation which involves multiple calls to different functions/subfunctions. The full setup has...

2 years ago | 1 answer | 0

### 1

answerQuestion

Plotting A Large Number Of Patches

There are a few older topics on this, but nothing I could find which is directly relevent I don't think. I'm utilising a modifie...

2 years ago | 1 answer | 0

### 1

answerQuestion

Vectorising a Meshgrid Coordinate Construction

I have three coordinate arrays (file attached) of size [M x 2], where M is the number of elements and the 2 represents different...

2 years ago | 1 answer | 0

### 1

answerCorrectly identifying faces of geometry that is displayed with pdegplot()

Another workaround which I use is to find nodes associated with faces and plot them onto a pdegplot to highlight specific faces:...

2 years ago | 0

Question

PDE Toolbox via Linux Server SSH Memory Corruption Error

I'm trying to use some code I've written on the universities Linux server but I'm encountering an error in running the code ther...

2 years ago | 0 answers | 0

### 0

answersCreating modified cavities in 3D models.

All of this is definitely possible, but the inbuilt CAD capabilities/geometry design in MATLAB aren't its strongest point. Fro...

3 years ago | 0

| accepted

Question

Importing A Quadratic Mesh (GeometryFromMesh)

I'm using the PDE Toolbox and the geometryFromMesh function to import meshes made externally (gmsh). The PDE Toolbox supports bo...

3 years ago | 0 answers | 1

### 0

answersVisualising 3D Cubes with a colour map

This can be achieved nicely using plotcube from the file exchange and a for loop: Plot Cube facealpha = .5; for index = 1:le...

3 years ago | 0

Question

Visualising 3D Cubes with a colour map

As part of a model I'm working on, I have discretised a problem into "brick elements" or "cubic voxels". The assumption then is ...

3 years ago | 2 answers | 0

### 2

answersPoint Categorisation via a suggested Mathematica If Statement

Utilising Walters suggested syntax, the expected code in MATLAB is: f_1 = (abs(location.x) <= abs(location.y)).*sign(locati...

3 years ago | 0

| accepted

Can I program the selection of faces for PDE modelling of a 3D object?

Not directly what you're searching for but something which could be applied in the same way is an undocumented function I found ...

3 years ago | 1

Question

Point Categorisation via a suggested Mathematica If Statement

I've been trying to figure out how to convert this for too long but without success - I'm hoping this is more obvious to a fresh...

3 years ago | 2 answers | 0

### 2

answersQuestion

Second order derivatives in the PDE Toolbox

The PDE toolbox is pretty brilliant in that it evaluates the spatial derivitives of your function as well as the function itself...

3 years ago | 0 answers | 0

### 0

answersReading *.msh files (3D) in Matlab.

If you're using gmsh, you can use its inbuilt exporter to export a .m file to read into MATLAB. This loads in a structure arra...

3 years ago | 4

| accepted

Question

Additional Inputs PDE Toolbox f coefficient

My code below is generating some sort of error, however I'm not sure the error message is consistent with the problem which is a...

3 years ago | 1 answer | 0

### 1

answerLoading .stl 3D geometry PDE Toolbox with two cellzones

You can't load in multiple geometries seperately in 3D to my knowledge. From my current experience, the only way to properly man...

3 years ago | 1

| accepted

Question

3D Multi-Domain PDE Modelling

The associated geometry for my problem is given below, where cell 1 is the current containing region and cell 2 is the surroundi...

3 years ago | 1 answer | 1

### 1

answerCreating a 3D Multidomain PDE Object:

This question was also posted on stack exchange where a very helpful answer was posted: Stack Exchange Answer

3 years ago | 0

| accepted

Question

Creating a 3D Multidomain PDE Object:

I have a geometry currently defined via .stl file (attached below). Unfortunetly, as noted in the documentation (STL Limitation)...

3 years ago | 1 answer | 0

### 1

answerQuestion

Linspace with varying increment

I'm interested in creating a set of numbers between fixed start and end points . I know I have 2 options to do this with a fixed...

3 years ago | 2 answers | 0

### 2

answersQuestion

Colouring Tetramesh - Element wise

I'm working with tetrahedral finite elements. I can happily set up a mesh and work with said mesh. A really simple example code ...

3 years ago | 2 answers | 0

### 2

answersQuestion

Converting FORTRAN code for Finite Element Analysis - Dealing with a Go To Command

Hello everyone, I'm working on a problem and trying to come to grips with finite element analysis. I'm working from "A Simple...

3 years ago | 1 answer | 0

### 1

answerQuestion

Quadratic Programming (quadprog):

Hey everyone, I'm currently trying to get my head around how quadprog works to apply it to a problem I'm working on. In the cur...

3 years ago | 1 answer | 1