
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
Loading data from .mat file and converting them to string array
I need to create a .mat file in which I save a string array using the following two command lines (the original array could be m...
ongeveer 19 uur ago | 2 answers | 0
2
answersQuestion
3D color map of F=F(x,y,z) where data is given as a 2D array of the form [x y z F]
The output of a CFD calculation is usually given in the form of a 2D array [x y z F] where F is a function such as pressure or v...
ongeveer een maand ago | 1 answer | 0
1
answerQuestion
Reduce a large XY array to a much smaller xy array where the x data is diluted to a much smaller vector and y values are the mean of the ones inbetween
I need to dilute a very large XY array where e.g. length(X)=10000 and I want to reduce the length of this array to a much smalle...
ongeveer een maand ago | 2 answers | 0
2
answersQuestion
Why does integration of an exponential function generate noisy results as opposed to its analytical solution?
The above question is of course a bit too general, but basically it would be of great advantage to find a way to ensure that num...
2 maanden ago | 1 answer | 0
1
answerQuestion
Analytical Solution of Double Integral in Symbolic Math
The following integral is known to have an analytical solution int(sin(x)*(a^2*cos(x)^2 + sin(x)^2/a)^(1/2), x) but Symbolic ...
3 maanden ago | 1 answer | 0
1
answerQuestion
Is it possible to decide which line is variable names in readtable?
I want to use readtable to read data from an excel file. As I understand, in readtable, the first line is automatically the vari...
8 maanden ago | 2 answers | 0
2
answersQuestion
Searching for slightly different versions of one string in another string array
I am looking for slightly diffeerent versions of a string S in the array A. For example, the string S that I am searching for ma...
9 maanden ago | 1 answer | 0
1
answerQuestion
Finding elements in string or cell array with common strings
Consider two arrays A & B: A={'blah_12_blah' 'blah_456_blah' 'blah_789_blah' 'blah_NPQZ_blah'} B={'blah_NPQZ_blah' 'blah_135_b...
10 maanden ago | 1 answer | 0
1
answerQuestion
Is it possible to save 2D or 3D graphics in a common CAD format (STEP File or .dwg file)?
Is it possible to create a 2D or 3D graphic shape in MATLAB and then convert it into a common CAD file?
12 maanden ago | 0 answers | 0
0
answersQuestion
Repeating the rows of an array by a number given by another array
Consider the array: x=[linspace(1,4,4)' linspace(5,20,4)'] I would like to repeat each row by a number given by another array...
12 maanden ago | 2 answers | 0
2
answersQuestion
Combining a number and a string array (both columns) into a single column string array.
How can the number array: NUMM=linspace(1,10,10)' and the string array: STRR=repmat('X='10,1) be combined to give a string a...
12 maanden ago | 2 answers | 0
2
answersfsolve yields initial guess as solution to non-linear equation
Thank you Davide! This really works, although it is not completely indpendent from the initial guess. Of course I know that an i...
12 maanden ago | 0
Question
fsolve yields initial guess as solution to non-linear equation
I am currently trying to solve a non-linear equation using the following program: clc; format long g; a=0.5; Eta0=100; t12=1e...
12 maanden ago | 2 answers | 0
2
answersQuestion
Average number of y for y=f(x) where there are several y values for the same x
I have an array y where y is a function of x but for every x there are multiple values of y. x=[x1 x1 x1 x1 x1 x2 x2 x2 x2 x3 x...
ongeveer een jaar ago | 1 answer | 0
1
answerIdentifying numbers within a long string containing multiple occurrences of text and numbers in one row
Thank you both!
ongeveer een jaar ago | 1
Question
Identifying numbers within a long string containing multiple occurrences of text and numbers in one row
Read from a text file, my input array contains one row that looks like this: x y z...
ongeveer een jaar ago | 2 answers | 0
2
answersQuestion
Assigning array-type names to elements of a GUI or App
How can I assign names coming from a string array to the elements of an App? Example: I have the following string array CBNam...
ongeveer een jaar ago | 1 answer | 0
1
answerQuestion
Finding local minima and maxima of DSC curves using islocalmin and islocalmax
DSC (Differential Scanning Calorimetry) is a thermal analysis method used in material science and chemistry to understand the th...
ongeveer een jaar ago | 0 answers | 0
0
answersShifting one curve to a reference curve using error minimization (fmincon from the Minimization Toolbox)
Sure. I just did!
ongeveer een jaar ago | 0
Shifting one curve to a reference curve using error minimization (fmincon from the Minimization Toolbox)
Hi Mathieu, thanks for the elaborate response and sorry for my late reply. Yes, it worked pretty well! Saeid
ongeveer een jaar ago | 0
Question
Shifting one curve to a reference curve using error minimization (fmincon from the Minimization Toolbox)
I need to shift the red curve ONLY horizontally to overlap with the black one. This should be possible using error minimization ...
meer dan een jaar ago | 3 answers | 0
3
answersQuestion
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...
meer dan een jaar 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 ...
meer dan een jaar 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"...
meer dan een jaar 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?
meer dan een jaar 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...
meer dan een jaar 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...
bijna 2 jaar 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...
bijna 2 jaar 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...
bijna 2 jaar 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. ...
bijna 2 jaar ago | 1 answer | 0