Answered
Finding the position of specific value in a vector without knowing the exact number
Depending on how you're storing your data and what analysis / manipulation you want to perform on it, storing it in a timetable ...

5 years ago | 0

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Remove time from datetime
Use timeofday to create a duration array containing the time since midnight for each of the datetime arrays. rightNow = datetim...

5 years ago | 0

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Answered
How to solve preallocating speed of a variable?
You start off with car an empty double array, then change it to a struct array with your first assignment in the loop. Instead I...

5 years ago | 1

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How do I change the default background color of view(biograph) objects created in MATLAB?
I don't believe you can do what you ask. If you're not required to use the biograph object consider using a graph or digraph ob...

5 years ago | 1

Answered
Invalid use of operator.
int = sqrt(@(t).* (av(t))^2); That is not valid. You're not multiplying the square of av(t) by anything. int = sqrt(@(t) (av(t...

5 years ago | 0

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Answered
What is the default MathWorks recommended compiler for mex compiling C++ source files that require Intel MKL as linear algebra package?
See the page linked in the appropriate row of the "Supported Compilers" column of the table on the system requirements page. Tha...

5 years ago | 0

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How to locate and link with the exact same Intel MKL that MATLAB is shipped with?
See this documentation page.

5 years ago | 0

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hypercube or hyperpca not found. Not even in R2020b .why ?
Both those functions are part of Image Processing Toolbox. Check the output of the ver function to determine if you have this to...

5 years ago | 0

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Object properties that automatically update but aren't Depenent
function obj = set.P(obj,pressure) if ~isempty(obj.P) error('Pressure is already set, please change pressure via s...

5 years ago | 0

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Answered
How do I convert a date time format that's (dd-MMM-yyyy hh:mm:ss) to (dd-MMM-yyyy hh)?
Do you want to change the displayed value or the stored value? dt = datetime('now') dt_display = dt; % Make a copy so dt can b...

5 years ago | 0

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matlab 2021-a
In "the March timeframe". We don't give the specific release date ahead of time.

5 years ago | 1

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ode45 error: must return a column vector
When you call your function at the initial time and conditions you pass into ode45 does it return a column vector? [I commented ...

5 years ago | 0

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Answered
The Simpson's 1-3 (h / 3) method in Matlab
% Ask for user input % Lower bound (a) a = input('What is your lower bound (a)?') % Upper bound (b) b = input('What is your ...

5 years ago | 0

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Store a vector in one function and access it from another function in Appdesigner.
See this documentation page.

5 years ago | 0

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Answered
Dos command doesn't work through Matlab, and works OK in command window
You cannot use double quotes both to surround the command and inside the command, at least not that way. Something like this wou...

5 years ago | 0

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Hello, can you help me with drawing up such a scheme, what source data is needed and in what form and how to enter them into the program (Matlab Simulink)?
Section 5 of the paper to which you linked seems to explain the meanings of most if not all of the identifiers given in that Sim...

5 years ago | 0

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Answered
Error using atan2 Inputs must be real.
Set an error breakpoint and run your code. When MATLAB stops on that line, look at the values you're passing into atan2 in the c...

5 years ago | 0

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Quotes matlab please help
What layout is your keyboard setup? On my 104 key US-QWERTY the single quote character used to create a char vector is immediate...

5 years ago | 0

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Do anyone know how to graph your function in the interval from x=0 to inf
The fplot function allows you to specify the range of x over which you want your function to be plotted. syms x fplot(sin(x), ...

5 years ago | 0

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Answered
Solution to time and space dependent ODE
See the ode45 function and the example on its documentation page that discusses passing additional parameters into your ODE func...

5 years ago | 1

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Answered
If else conditionals in matlab app.designer?
Compare: 'ac' == 'ad' % returns a 1-by-2 logical array 'ac' == "ad" % returns a 1-by-1 logical array When you compare two cha...

5 years ago | 1

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nlinfit command problem :(
From the error message: "Weights must be a vector of real positive weights ..." Are they? Is dA a vector? Check with isvector. ...

5 years ago | 0

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How do I input and solve a system of differential equations in matlab
I recommend you visit the Ordinary Differential Equations category in the documentation. Several of the Topics pages listed in t...

5 years ago | 0

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User inputs for publish
To me, publishing is intended as a non-interactive activity. You should be able to start the publishing process, go get a cup of...

5 years ago | 1

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How does mat2cell work?
Let's try this with a slightly smaller matrix, so you can see what's going on. A = reshape(1:24, [3 8]) Let's slice this into ...

5 years ago | 0

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How do I do a Matlab assignment (report)?
Assuming this is homework, you should probably ask your professor about the format of the report they expect you to submit. You...

5 years ago | 0

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I have a question
You did not end the command you executed immediately before calling imshow(d) with a semicolon. I'm guessing that command was a ...

5 years ago | 1

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how do I generate new random number every time I run a exe file?
See this documentation page that discusses why random numbers repeat after startup.

5 years ago | 0

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How to interpolate under specific condition?
If you were using release R2020b or later, I would recommend calling the fillmissing function with the 'MaxGap' option. I'm leav...

5 years ago | 1

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Different results for the same equation
lambda(1) is displayed the same as lambda(3) but its value is not identical to the value of lambda(3). A = [-10 10 -15; 10 5 -3...

5 years ago | 0