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Tips on combining while loop
You were creating a function, why not make that explicit? %Pohlhausen/thwaites polynomial %clear;clc;close; % ^^^^^^ you do...

circa 5 anni fa | 0

Risposto
Strange behavior of if statement
Welcome to floating point integers. Matlab stores these numbers in a binary representation with a finite precision. Similar to ...

circa 5 anni fa | 0

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Create interface to control my instruments.
For general advice and examples for how to create a GUI (and avoid using GUIDE), have look at this thread. You can use a callba...

circa 5 anni fa | 0

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How to split .mat data into different variables?
You can't have a file in your workspace, only variables (and objects if you don't count those as variables). There are some gue...

circa 5 anni fa | 0

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Risposto
Can you have a function for multiple scripts that are growing in size?
Scripts are not for real work, use functions instead. Functions allow you to write code that solves a specific problem. You can ...

circa 5 anni fa | 0

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Risposto
Error in saveas, invalid or missing path
You should create a path from parts by using fullfile. That way you avoid having to think yourself about which filesep to use. ...

circa 5 anni fa | 0

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find the row and column value of a specific value in cell array
You need to use a bit of trickery to use find (ismember will not work normally either). cellarr = {... 'a','b','c', 3 ,5;....

circa 5 anni fa | 1

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Risposto
Write and format table to csv file
You can use formattedDisplayText (which was introduced in R2021a). (see this highlight for an extra example) For older releases...

circa 5 anni fa | 0

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How do you check if an inputed number is an array/vector or just 1 value?
In my view using numel or isscalar (introduced somewhere between v6.5 and v7.1) would be a better solution. xscalar = numel(x)~...

circa 5 anni fa | 0

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Help with if statement in a calculation loop
The problem is that you assume Matlab will process each element of x separately. Matlab will only do that if you use a loop. ...

circa 5 anni fa | 0

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Can I open a file made in R2019a with different versions of matlab (R2017b)?
This depends on what kind of file you're talking about. mat files and m files are very portable, especially if you leave the def...

circa 5 anni fa | 0

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Risposto
Comparing values of a vector
This is the easiest way to do it vectorized: Zc_0_to_P =@(x) (M/P^2)*(2*P.*x - x.^2); % 0≤x≤P Zc_P_to_1 =@(x) (M/(1-P)^2)*((1-...

circa 5 anni fa | 0

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Risposto
Version number 2021a Version='9.10' is confusing. Why not using '10.0'
Versioning is a complex and hotly debated topic. Generally you want to increment the first number if you have a really big upgra...

circa 5 anni fa | 1

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Risposto
Assign date values manually to datetime array matlab
For pre-R2020b, you can use readfile, which you can get readfile from the FEX. If you are using R2017a or later, you can also ge...

circa 5 anni fa | 1

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Risposto
courbe de progression du pixel
%load an example image S=load('mri'); I=squeeze(S.D); x=randi(size(I,1));y=randi(size(I,2)); intensity=squeeze(I(x,y,:)); ...

circa 5 anni fa | 0

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Risposto
modify a program to obtain the same result from right to left
Your loop can probably be replaced by a vectorized operation, but I will leave that for you to figure out. I suspect fliplr and ...

circa 5 anni fa | 0

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How to use output numbers as a vector.
There are may sorting algorithms you could implement. One of the easiest to implement (and one of the slowest) is called bubble ...

circa 5 anni fa | 1

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When I attempt to run this it produces an 'error using zeros, size inputs must be integers' for the line DcDt = zeros(n,1). The code is supposed to produce a breakthrough curve. Any help is appreciated.
L is not defined. If it is smaller than 0, this will lead to z being empty, meaning that n is 0. L=-1; z=0:0.001:L; numel(z) ...

circa 5 anni fa | 0

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Displaying an array of zeroes.
doc fprintf

circa 5 anni fa | 0

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Evaluating function on an array of values
There are several problems here. The main one is that you are using matrix operations instead of element-wise division. In this ...

circa 5 anni fa | 0

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Saving data to current date
doc datetime

circa 5 anni fa | 0

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Using student license on more than one computer
Since a student license is a personal license (and only allows installation on 1 computer), there are two problems with your pla...

circa 5 anni fa | 0

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str2num returning value while the preferred str2double returning NaN...
This is another difference: str2double('evalc(''exit'')') str2num('evalc(''exit'')') %will exit Matlab You should parse the ...

circa 5 anni fa | 0

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Risposto
Is it possible to vectorize this simple recursive function in loop?
Vectorization should only be attempted if there are more direct functions. Otherwise, for loops in Matlab are surprisingly optim...

circa 5 anni fa | 3

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Writing data from GUI handles to text file
(the advice I wanted to post became a bit long, so I will put it in an answer instead of a comment) My general advice for writi...

oltre 5 anni fa | 1

Risposto
How to create legend with multiple variables in a loop ?
You should put the figure creation and the creation of the legend outside the loop. You are merging the two texts, but you sh...

oltre 5 anni fa | 0

Risposto
Adding a cell to another cell in a specific position
What do you mean exactly by adding? %create some data n=3;m=5; A=num2cell(1:n).'; B=num2cell(2*n+(1:m)).'; %option 1: A1...

oltre 5 anni fa | 0

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Risposto
remove cell values of a column vector not contained in another column vector
doc ismember And maybe setdiff will do the trick as well.

oltre 5 anni fa | 0

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For loop in a for loop
You are resetting b in your loop, so only the last value of k matters. And the middle loop isn't a loop, as it is a scalar.

oltre 5 anni fa | 1

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Risposto
plot all roots of a polynomial which has a interval coefficient
I meant something like this. N=200; Z=NaN(N,3); a=linspace(2,3,N); for n=1:numel(a) p=[1 a(n) 1 1]; z=roots(p); ...

oltre 5 anni fa | 0

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