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**Content Feed**

Question

MATLAB can't symbolically solve a definite integration

The following definite integration couldn't be symbolically solved by MATLAB. Is there a way to make it solvable by MATLAB? The...

7 months ago | 1 answer | 0

### 1

answerQuestion

Understanding how testCase.addTeardown works with @path

The following code is adopted from this blog post: classdef GoodFixturesTest < matlab.unittest.TestCase methods(Test...

10 months ago | 1 answer | 0

### 1

answerQuestion

How to robustly set class object properties in the class constructor when using name-value approach without handling them one-by-one?

For the following, is there any robust way to set the class object properties at once by copying each input struct field value t...

11 months ago | 1 answer | 0

### 1

answerQuestion

Examples of efficient and inefficient parallel computations on GPU

I am considering buying a new laptop, so I would like to know examples of efficient and inefficient usages of parallel computing...

1 year ago | 0 answers | 0

### 0

answersMatlab Live Scripts displaying figures in seemingly random order when multiple code blocks with subplots are used

As a workaround, you can use this MATLAB mechanism in your favor by creating a duplicate dummy figure then delete it to show the...

1 year ago | 0

Question

Find the normal vector at a specific point on a 3D surface defined by an equation

Consider the following code: rng('default') [Xs,Ys,Zs] = sphere; X = (0.99+0.01*rand(size(Xs))).*Xs; Y = (0.99+0.01*rand...

2 years ago | 0 answers | 0

### 0

answersQuestion

Find an index of a cell whose element satisfies a condition

Is there a way to economically fix the code below to make it work so that it returns the index of the cell element whose array h...

2 years ago | 2 answers | 0

### 2

answersQuestion

How to show the Unit parameter in the signal attrbutes of a constant block?

For the attached Simulink model I created using MATLAB R2021a, how can I show the Unit parameter in the block parameters of the ...

2 years ago | 1 answer | 0

### 1

answerTo change Current Folder to the folder of .m File

For live scripts, @Qi Wang suggested using this: fileparts(matlab.desktop.editor.getActiveFilename) to get the full path of t...

2 years ago | 3

ode45 goes busy endlessly when using the sign of a state variable

Thanks to the explanation of Star Strider, the use of sign() can be replaced by fr*Mass*9.8)*(y(2)>0) to make it work.

2 years ago | 0

| accepted

Question

ode45 goes busy endlessly when using the sign of a state variable

This term "- fr*Mass*9.8*sign(y(2))" makes ode45 busy forever specifically when using 'sign(y(2))' I just need to make -fr*Mass...

2 years ago | 2 answers | 0

### 2

answersQuestion

Changing the same property of some axis children using subsasgn

How to make the following code work in order to change the 'Visible' property of some children plots whose handles are stored in...

2 years ago | 1 answer | 0

### 1

answerHow to write code in MATLAB?

Your code in the question is not clear to me, nevertheless, my code below can be edited to fulfil your needs. x = 1:10; % array...

2 years ago | 0

Working a definite integral

Read this Definite Integrals of Symbolic Expressions, then you can do syms x vpaintegral(1/sqrt(1-x^2)*(x^2+1.1202*x+0.2132),[...

2 years ago | 1

| accepted

Question

How to solve a set of symbolic equations for the same variable?

Is there a way to make the following work and solve the following set of symbolic equations for the same variable and save the o...

2 years ago | 1 answer | 0

### 1

answerQuestion

MeshDensity: How to exactly set the number of evaluation points of fplot?

In the documentation, it is said under 'MeshDensity' option of 'fplot': "Number of evaluation points, specified as a number. T...

2 years ago | 1 answer | 0

### 1

answerQuestion

'deal' doesn't distribute the elements of a calculated array out of cellfun

For the following syms syma symb eqns = [... syma*exp(symb)== 1,... syma*exp(symb*1500) == 5,... ]; vars = [s...

2 years ago | 1 answer | 0

### 1

answerHow do I skip items in a legend?

You can simply delete the last undesired entry by the following: % assume you plotted some curves before this line and all of t...

2 years ago | 1

autorename if saved file already exist

Revisitng this old question, I followed the idea of Jan to come up with this solution of appending the existent file name with a...

2 years ago | 1

Question

Is it possible to have an inline function inside a cell array to conditionally return an element to be stored?

Consider I have mycondition = true; truestatement = 'yes'; % returned by the inline function when mycondition is true falsest...

2 years ago | 2 answers | 0

### 2

answersHow to selectively save the names and values of some workspace variables to a CSV file?

Thanks to the inspiring answer of @Rik, I found the following solution without the need to use for loop a = 3; b=7; c=5; d=9; ...

2 years ago | 0

Question

How to selectively save the names and values of some workspace variables to a CSV file?

Consider the following a = 3; b=7; c=5; d=9; save('test.mat') data = load('test.mat'); toSave = { 'b' ; 'c' }; writece...

2 years ago | 2 answers | 0

### 2

answersQuestion

Write to an already opened Excel file

The following MATLAB code works well for writing eActiveSheetRange.Value to the range eActiveSheetRange However, I have t...

3 years ago | 1 answer | 0

### 1

answerQuestion

Live scripts stored in MATLAB Drive are assumed to be located in Temp folder

I have MATLAB R2019a on Win10 and MATLAB Drive Connector. Some live scripts are stored in the local MATLAB Drive folder. Howeve...

3 years ago | 1 answer | 0

### 1

answerQuestion

Reshaping Nodal Spatial Vectors into 3D Matrices for Countourslice

I have a problem of temperature field across a cubic domain. My nodes locations are stored in 3 column vectors of *x=[x1 x2 ....

8 years ago | 0 answers | 0