Saeid

Last seen: Today

88 total contributions since 2016

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

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...

24 days ago | 1 answer | 0

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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...

3 months ago | 0 answers | 0

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Question

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...

3 months ago | 1 answer | 0

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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...

5 months ago | 1 answer | 0

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Question

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...

6 months ago | 0 answers | 0

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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...

8 months ago | 2 answers | 0

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answers

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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...

8 months ago | 1 answer | 0

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Question

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...

8 months ago | 0 answers | 0

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Question

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 ...

9 months ago | 1 answer | 0

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Question

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...

9 months ago | 1 answer | 0

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Question

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...

9 months ago | 1 answer | 0

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Question

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(...

9 months ago | 1 answer | 0

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Question

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...

10 months ago | 1 answer | 0

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answer

Question

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...

11 months ago | 0 answers | 0

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answers

Question

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...

1 year ago | 1 answer | 0

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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...

1 year ago | 2 answers | 0

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answers

Question

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...

1 year ago | 1 answer | 0

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answer

Question

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 ...

1 year ago | 1 answer | 0

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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...

1 year ago | 1 answer | 0

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Question

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...

1 year ago | 1 answer | 0

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answer

Question

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...

1 year ago | 1 answer | 0

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Question

Identifying blocks of data from a cell array having the same header
I usually use xlsread to load large excel datasheets for further manipulation. The excel worksheet looks somewhat like this: ...

2 years ago | 1 answer | 0

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Question

Creating table with variablenames properts as an array
I create a table of the form: Temp={'T_'} rpm=[70; 80; 90] Temperature=strcat(Temp,num2str(rpm)) TVALz=[190 220 300 140; 57 ...

2 years ago | 0 answers | 0

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Question

How to perform mathematical operation between all elements of arrays with unequal numbers
I have two arrays A & B, being a nXm and a pXq array, repsctively. I want to take A(i,j) and multiply it in or subtract it from ...

2 years ago | 2 answers | 0

2

answers

Question

Converting cell array from excel to numbers
Reading from a large excel sheet using xlsread, I am trying to read data and find numerical values assigned to specific lines in...

2 years ago | 3 answers | 0

3

answers

Question

Rearranging Array Rows into Multiple Blocks while Maintaining the Old Order
How can I rearrange an array from alternating rows to multiple blocks, maintaining the order of the rows?

2 years ago | 2 answers | 0

2

answers

Question

Converting 2D Array to 3D
How can I convert a 2D array to a 3D array in the following form?

2 years ago | 1 answer | 0

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Question

Comparing common strings in two large string arrays imported from excel (using xlsread)
I have two very large string arrays (one of them 2000 rows and the other one is 7000 rows) that I import using xlsread and want ...

2 years ago | 2 answers | 0

2

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Answered
Processing data of different classes read from the same column in an excel file
青野さん、答えありがとうございます。 Actually, I usually read all the data in the raw format as: [~,~,rawdata]=xlsread('filename.xls',1) And th...

2 years ago | 0

Question

Processing data of different classes read from the same column in an excel file
Usually when I read large amounts of data from excel files the format of data in every column are the same. For example, a targe...

2 years ago | 2 answers | 0

2

answers

Saeid

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