# Saeid

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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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**Feeds**

Question

Converting cell array with <missing> elements to numerical or double matrix

I have to import a cell array that is composed of strings and numbers from excel to MATLAB using readcell, and one part of the l...

21 dagen ago | 1 answer | 0

### 1

answerQuestion

Referring to object names in App Designer as elements of an array

In App Designer, I want to introduce the names of a series of objects (e.g. uifigures) in an array, and then refer to them by th...

ongeveer een maand ago | 2 answers | 0

### 2

answersQuestion

Converting a three-column set of data to xyf matrix suitable for a contour plot

I have a set of data (the output of a CFD calculation) that consists of three columns x and y showing location and a third colum...

5 maanden ago | 1 answer | 0

### 1

answerQuestion

Loading table from object from .mat file

I import a table object that I have stored in a .mat file (attachment) using: ParaDat=load('ParameterDatabase.mat') Then, I tr...

5 maanden ago | 1 answer | 0

### 1

answerQuestion

Discretizing a column array, and performing operations on elements of another column array of the same length that lie in the same bins as the original one

I have a data array that is composed of column vectors X, Y, & Z (coordinates) and an array F that has one or multiple columns o...

7 maanden ago | 2 answers | 0

### 2

answersQuestion

The problem with "contains"

I have an string array containing longer strings, let's say it is called LongStrings. Then I have an array of shorter strings, a...

8 maanden ago | 1 answer | 0

### 1

answerQuestion

Reading and finding string in a text (.TXT) file containing string and numerical data

I am trying to read data from a text file (attachment). This is a typical summary output from a CFD simulation which has a short...

9 maanden ago | 2 answers | 0

### 2

answersQuestion

Converting the outpur of a fit (e.g. sfit) into a string format, then pasting the text to a Text Area in app desginer

I have two problems: 1- I don't know how I can convert the output of a fit, which in my case comes as the class "sfit", into a...

ongeveer een jaar ago | 2 answers | 0

### 2

answersQuestion

Plotting the outcome of a 3D fit

I have a set of data in the form [X Y Z] where X, Y and Z are column arrays. I can plot these data using scatter3. However, when...

ongeveer een jaar ago | 1 answer | 0

### 1

answerQuestion

Finding the predominant value in multiple sets of data

I have multiple sets of XY data that look like the following graph, where each set has a different color. The maximum of the blu...

ongeveer een jaar ago | 1 answer | 0

### 1

answerQuestion

Turning all elements of a column array into the same factor of 10

I have an array that looks like this: X=[19.9 20 20 20.1 20.12 19.81 20 20 20 ... ] So it is predomintantly an integer factor...

ongeveer een jaar ago | 1 answer | 0

### 1

answerQuestion

.MAT file with multiple tabs/sheets

I would like to copy the contents of a multi-sheet excel file into a .mat file. Is it possible to have a multi-sheet .MAT file? ...

ongeveer een jaar ago | 1 answer | 0

### 1

answerQuestion

In an array xy=[x y], reduce array length by assigning average values of y based on a predefined range of x

I have the x values in the range x=[x1 ... xn] and y values related to x through the function f as in y=f(x). Now I want to brea...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

Saving output values into a and archive .mat file which grows with time

I am currently writing a lab applicaiton that calculates certain values by analyzing IR spectra. I would like to store the numer...

meer dan een jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan een jaar 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...

meer dan een jaar 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...

meer dan een jaar 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...

bijna 2 jaar 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 ...

bijna 2 jaar 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...

ongeveer 2 jaar 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...

meer dan 2 jaar 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...

meer dan 2 jaar 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?

meer dan 2 jaar ago | 1 answer | 0

### 1

answerQuestion

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...

meer dan 2 jaar 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...

meer dan 2 jaar 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...

meer dan 2 jaar 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...

meer dan 2 jaar 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...

meer dan 2 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!

meer dan 2 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...

meer dan 2 jaar ago | 2 answers | 0