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Accept 5 answers given by other contributors
Awarded to Ahmed Hossam on 20 Jul 2017
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Awarded to Ahmed Hossam on 20 Jul 2017
Feeds
Question
Draw lines between two given sets of points
I have two sets of points in 3D. These look for example like: S1 = {(x1,y1,z1),(x2,y2,z2),...,(xn,yn,zn)} S2 = {(x1',y1',z...
6 years ago | 1 answer | 0
1
answerQuestion
Edge transparency "EdgeAlpha" of a patch
Is it somehow possible to specify the edge transparency for the edges of a patch separately for each edge at a time?!?! ... I ha...
6 years ago | 1 answer | 0
1
answerQuestion
The function LegendreP is not working ...
Hi, I think I have the wrong matlab version (maybe I need an update), but is there any way I can tell matlab that there is a ...
6 years ago | 0 answers | 0
0
answersQuestion
AlphaShape doesn't work for this?
I tried all possible alphas, for which the alphaShape changes, but I couldn't capture the interior of this polygon. Maybe it's b...
7 years ago | 0 answers | 0
0
answersQuestion
Extrude a surface along curved lines to generate Volume
Is there a Matlab function for this?...
7 years ago | 1 answer | 0
1
answerQuestion
Get the Edges of the Volume in the current figure
I have constructed step by step some 3D Volume with the alphaShape-function and I wonder, if it's possible to get the boundaries...
7 years ago | 0 answers | 0
0
answersQuestion
Boundaries of a point cloud
I have 2D points in the x,y-plane and I would like to extract the boundaries with this function: <https://ch.mathworks.com/he...
7 years ago | 1 answer | 0
1
answerQuestion
3D volume data
I have a cross section in the y,z-plane meshed with quadrilaterals. I would like to extrude this mesh along the x-axis. What wou...
7 years ago | 0 answers | 0
0
answersQuestion
How can I obtain the left eigenvectors for a polynomial eigenvalue problem?
I have used polyeig-function to obtain the right eigenvectors to a quadratic eigenvalue problem, but I wonder, how I could get t...
7 years ago | 0 answers | 0
0
answersQuestion
Constant properties in classes
Hi, is it possible to define a constant property in a class which depends on other constant properties in the same class? ...
7 years ago | 1 answer | 0
1
answerQuestion
OOP: Object gone out of scope!
Hi, I have two handle classes. In one of them I call the constructor of the other handle class many times. Problem: Up...
7 years ago | 1 answer | 0
1
answerHow to determine where the function is equal to zero
Try to use symbolic calculation to find 'the zeros'. Otherwise use numerical newton raphson algorithm.
7 years ago | 0
Question
Listen to a property of an user-defined handle class
Hi, In an user-defined handle class, I have attached a listener to a property, which I've defined in a property block using...
7 years ago | 0 answers | 0
0
answersQuestion
Construct an empty array of objects of a handle class
Hi, I'm trying to construct an empty array of objects made from an user-defined handle class (class_1). I'm trying to acheive...
7 years ago | 1 answer | 1
1
answerQuestion
Merge array cells after creation to one cell
Hi, i have an array arr = cell(2,3) and I wonder, if there's a method/function/trick which could combine the three cells in t...
7 years ago | 1 answer | 0
1
answerQuestion
Invoke methods and access properties of a subclass by a super class
Hi, what is the safest way to do that in Matlab, if this is possible?! I have an abstract relationship between 'smaller...
7 years ago | 1 answer | 0
1
answerQuestion
I have a cell array with different types of data and I would like to cellplot
When I plot my cell array, even if there are just double values, I get to see only the structure of that array, but not all the ...
7 years ago | 1 answer | 0
1
answerQuestion
General question to cell arrays and structures
I have defined some sort of a 'structure' made up of numbers and matrices of different sizes. I used cell arrays to build it up....
7 years ago | 0 answers | 0
0
answersQuestion
Differentiating a bilinear function with the symbolic Toolbox
Assume we have functions, which look like this: a(x,y) = 1 + 2x + 3y + 4xy b(x,y) = 5 - 6x + 7y - 8xy can I somehow g...
7 years ago | 0 answers | 0
0
answersQuestion
Extract matrices out of a symbolic matrix
Let's assume I have a matrix which looks something like: Mtx = [2,3*x;4*x^2,1] Is it "symbolically" poss...
7 years ago | 1 answer | 0
1
answerQuestion
Basic question about initializing variables
What's the difference between a = [ 1 2 3 ]; and a = zeros(1,3); a = [ 1 2 3 ]; Performance? Logic? I'm jus...
7 years ago | 1 answer | 0
1
answerQuestion
mat2cell second input parameter(s)
Hier: https://ch.mathworks.com/help/matlab/ref/mat2cell.html I have a problem to fully understand the second, third, fourt...
7 years ago | 1 answer | 0
1
answerQuestion
Build determinantes of matrices in cell arrays
I have a cell array X with dimension (N x 2) and N is an even number. This cell array is filled with (2 x 2) Matrices of type do...
7 years ago | 1 answer | 0
1
answerQuestion
Extract every subexpression in a symbolic expression between + and -
Is it somehow possible to get out of some expression E, for example: E = 5*h*(a*(b/c)+(d*e*f)/(3*g)-(x*y)/(j*i*k)+...)/(...) ...
7 years ago | 1 answer | 0
1
answerQuestion
An isoparametric 2D quadrilateral with 3 DOFS per Node?
Hi, Is it possible to define an isoparametric linear 2D finite element with three DOFS (ui,vi,wi) per node i? I only see ...
7 years ago | 0 answers | 0
0
answersQuestion
Converting a symbolic array to a double array cuts off decimal places, why?
I have a symbolic array arrsym with values like for example 1.234567891234567... When I double(arrsym), then I get only four ...
7 years ago | 0 answers | 0
0
answersQuestion
Call a function in an m-file from a method of a handle class
I would like to know, if the object, which is being created with the help of the (handle) class methods, would also be visible f...
7 years ago | 2 answers | 0
2
answersQuestion
How can I declare lots of global variables in one m-file and make them visible for all my functions in all other m-files?
I was thinking about putting all my global variables in one m-file in order for me to have an overview on my global variables. ...
7 years ago | 2 answers | 0
2
answersQuestion
How can I generate a mesh of quadrilaterals for a given 2D surface using MATLAB?
Does somebody know, how to simply and theoretically generate a mesh of quadrilaterals on a given surface? The surface is in ...
7 years ago | 1 answer | 0
1
answer
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