Saeid
Professional Interests: Rheology, Polymer Processing, Rubber Mechanics, Polymer Physics, Micromechanics, Finite Difference Method, Finite Element Method, Computational Fluid Dynamics, CFD, Viscoelasticity, Constitutive Modelling, Material Science
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Question
Curve Fitting Using External Function
Using the Curve Fitting Toolbox, is it possible to put the fitting function outside of the fittype? A general example of the way...
9 días ago | 1 answer | 0
1
answerQuestion
How to recognize discontinuity of slope in numerical data
I am dealing with a set of data that, when plotted, shows a breaking point as shown in circles. How can I identify these points ...
alrededor de 1 mes ago | 1 answer | 0
1
answerQuestion
Solving set of nonlinear equations with multiple roots
I would like to solve the set of nonlinear equations for x & y, where the set of equations if defined in the function "Uniaxial"...
alrededor de 1 mes ago | 0 answers | 0
0
answersQuestion
Complex roots of sin(2*x)-2*x=0
How can i use fsolve to obtain the complex roots of the equation: sin(2*x)-2*x=0?
2 meses ago | 2 answers | 0
2
answersQuestion
Delete/remove entire rows and columns containing an element that satisfies a condition (e.g. when the element is an imaginary number)
In an array containing elements that are imaginary numbers, how can I remove the entire row(s) and column(s) containing any of t...
3 meses ago | 2 answers | 0
2
answersQuestion
Combining two character arrays so that the elements of one of them is added in between the elements of the other one
I want to combine two character arrays x='ABCDEFGHIJKLMNOPQRSTUVWXYZ' and a='AAAAAAAAAAAAAAAAAAAAAAAAAA' so that A is alte...
7 meses ago | 1 answer | 0
1
answerQuestion
Finding the elements within a certain range [XMin, XMax] in every column of an array, then converting all the elements of each column within that range to the minimum of that range
I want to find all the elements within a certain range in every column of an array. For example, I want to find all the elements...
7 meses ago | 1 answer | 0
1
answerQuestion
Finding the elements within a certain range [XMin, XMax] in every column of an array, then converting all the elements of each column within that range to the minimum of that range
I want to find all the elements within a certain range in every column of an array. For example, I want to find all the elements...
7 meses ago | 1 answer | 0
1
answerQuestion
Find element satisfying condition in 3D array, then apply operation to all elements in the column number
I have two 3D arrays A & B with I x J x K elements. I want to find all the elements that satisfy a certain condition in A (e.g. ...
7 meses ago | 1 answer | 0
1
answerQuestion
Integral of exp(-x)*P(x)/Q(x) in terms of exponential integral in symbolic tooblox
I am trying to find an analytical soltuion to the integral I= int(exp(-x)*P(x)/Q(x),x,0,inf) where P and Q are both polynnomi...
8 meses ago | 1 answer | 0
1
answerQuestion
Shifting datasets using error minimization and optimization
In the field of polymer rheology, it is sometimes necessary to perform tests at different temperatures and then shifting them to...
10 meses ago | 0 answers | 0
0
answersQuestion
How to use external function to plot a graph in GUI or app designer
Currently I can only write the plotting command inside the code view of my GUI form. In cases where I need to write multiple com...
10 meses ago | 1 answer | 0
1
answerQuestion
Referring to a specific column of a uitable as logical (with checkboxes)
My program needs to read data from a database and then add checkboxes to an extra column on the right hand side of the data. How...
alrededor de 1 año ago | 1 answer | 0
1
answerQuestion
BVP4C is returning x and y output vecotrs that are different in length from the original x vector. Is there a way to fix the length of x ans y?
I would like to solve a set of BVPs with the starting x values (second line of the code below) in a vector of length 50, but whe...
alrededor de 1 año ago | 0 answers | 0
0
answersQuestion
Padé approximant for a numerical data array
I am looking for the Padé approximant of a data array such as y. y cannot be given explicitly and is generated by another routin...
más de 1 año ago | 2 answers | 0
2
answersQuestion
Outer Bounds of a Dataset
I have a set of xy data and I want to find the outer bounds of this set so that when I plot the data and connect these outer bou...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Third Order Boundary Value Problem (BVP) with Boundary Coditions only in Terms of Derivatives
I need to solve the boundary value problem (related to flow of fluids in conical ducts): Y''' + 1 - Y'^2 = 0 with all the thre...
más de 1 año ago | 0 answers | 0
0
answersQuestion
Solving nonlinear implicit differential equation of the form F(t,y(t),y'(t),y''(t), y'''(t), ...)=0 in MATLAB using ode15i
Is it possible to solve implicit differential equations of the form F(t,y(t),y'(t),y''(t), ..., y(n))=0 in Matlab? The specific ...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Change Edit Filed text from external function
I am trying to design a GUI console, named e.g. MainConsole where input values are entered and then sent to an external function...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Call to function with multiple outputs
Considering the function with multiple outputs of different array sizes [y1 y2 y3 y4]=f(x) sometimes inside a program I just n...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Stepsize in integral2 or quad2d
I would like to solve the double integral: for i=1:length(z) fz= @(P,Q) sin(P).*(sqrt(1+z(i).*cos(Q).*(sin(2*P)+z(i).*cos(...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Compare positions of strings in two cell arrays having the same string elements
I have two cell arrays F1 & F2 having the same elements, but the positions of elements in F2 have been shuffled: F1 = {'ET...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Cover shapes in background with filled shapes in foreground
I would like to draw shapes using the polyshape function, e.g. by writing: x0=[0 0 200 200]; y0=[10 0 0 10] SquareSh...
más de 1 año ago | 0 answers | 0
0
answersQuestion
Implicit Boundary Value Problem
Is there a way in Matlab to use the bvp4c or bvp5c functions to solve a system consisting of boundary value and algebraic equati...
más de 1 año ago | 1 answer | 0
1
answerQuestion
Passing parameters in boundary value problem using BVP4C
For a system of boundary value problems I need to pass a parameter as a coefficient. Let's assume that I have defined the proble...
casi 2 años ago | 2 answers | 0
2
answersQuestion
Reading numerical data from text file
I have a large number of text files containing numerical data of the form: -1.1389E+00 7.5269E-05 | -1.6667E-01 0.0...
alrededor de 2 años ago | 1 answer | 0
1
answerQuestion
Replacing specified elements of a matrix with elements of a vector
Imagine a 6X6 zero matrix Z=zeros(6,6). I have a vector v=[1 2 3 4] and I want to send the elements of this vector to specified ...
más de 2 años ago | 1 answer | 0
1
answerQuestion
Finding elements of an arrays having specified index numbers
If I select a number of elements from an M X N array (which usually follow a pattern) I need to assign the indices of these elem...
más de 2 años ago | 1 answer | 0
1
answerQuestion
Use isnan with input excel data containing a combination of strings and empty cells in a row
When I read raw data from an excel file named INFILE.xls, I usually want to remove the free spaces between columns afterward and...
más de 2 años ago | 1 answer | 0
1
answerQuestion
Sum of rows with whose row numbers are specified by another array
I have an array of the form: TTX = 20 9 2 7 40 10 10 1 60 2 10 9 0 1...
más de 2 años ago | 1 answer | 0
