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# Paul Safier

##### Last seen: Today
13 total contributions since 2018

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Question

Gaussian filter with fspecial versus imgaussfilt
I have two questions. First, I want to filter a function with a Gaussian that has a standard deviation with dimensions of length...

1 month ago | 0 answers | 0

### 0

convolution with gaussian kernel using fft
@David Goodmanson: Can you point me to where you found the 3.53 value? All this discussion has led me to conclude that sin...

2 months ago | 0

Question

Extract Gridded Data from Isosurface
I want to get the x, y and z data of a surface that I extract from a volume via isosurface. I am doing it in the following way, ...

3 months ago | 1 answer | 0

### 1

Question

Parfor Loop Error with Classification
When trying to convert the outer loop of the code below to a parfor loop, the error is: Error: The variable z_new in a parfor...

4 months ago | 1 answer | 0

### 1

Question

Solve as Optimization Problem in Matlab
I want to solve this simple equation as an optimization problem in Matlab. I have tried linprog, fmincon and fminunc and all do ...

7 months ago | 4 answers | 0

### 4

Question

Change folder that Matlab saves session information
I run Matlab on Linux machines. Matlab is saving session information (e.g. History.xml, parallel_settings, etc) in a folder cal...

9 months ago | 2 answers | 0

### 2

Question

Remove Internal Faces from Geometry
Is it possible to remove the internal faces of this geometry: pdem = createpde; g = multicuboid(40,40,0.1*ones(10,1),'Zoffse...

1 year ago | 0 answers | 0

### 0

Question

Coefficient Multiplying Laplacian Implicit in Neumann BC?
I'm solving the parabolic equation: I set up the PDE as: specifyCoefficients(model,'m',0,'d',1,'c',D,'a',0,'f',0); and ...

1 year ago | 0 answers | 0

### 0

Question

Mesh the Inside of a 3D Patch
I am trying to solve a PDE via the PDE Toolbox and am having trouble building the mesh/geometry. I have built the volume via the...

1 year ago | 0 answers | 0

### 0

Question

Create 3D Geometry for PDE Toolbox
I am having trouble creating the geometry of the attached image for use in the PDE toolbox. I have tried several things: i) rewo...

1 year ago | 0 answers | 0

### 0

Question

Hmax in GenerateMesh to be Different for x, y and z Directions?
I'm using the PDE Toolbox to solve a 3D elliptic problem in cartesian coordinates. The domain has an aspect ratio of about 40 an...

1 year ago | 0 answers | 0

### 0

Question

Segment Dumbbell Structure into Two Circles and One Rectangle
I'm trying to analyze three shapes from this image--two circles and one rectangle. I would like each to be a separate object det...

1 year ago | 1 answer | 0