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Why is MATLAB not recognizing my variables in my switch block?
First, you probably want to have an otherwise block in your switch / case to handle the case where a user enters something other...

4 years ago | 1

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Make an app from matlab app designer a executable .
Use the MATLAB Compiler product to create and deploy a web app.

4 years ago | 0

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How can I adjust the patch function to display correctly?
I'm not sure patch is the right tool for this job. Have you tried using geoplot or perhaps patchm from Mapping Toolbox instead?

4 years ago | 0

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convert value from radian form to degree form
See the deg2rad function.

4 years ago | 0

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Can log in on MathWorks website, cant in the MATLAB app on windows
Try renaming your flip.m script file located in: C:\Users\jonat\OneDrive\Documents\MATLAB\flip.m Its existence prevents MATLAB...

4 years ago | 0

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list of users for specyfic license
Please contact Customer Service for help with license management.

4 years ago | 0

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Error: Maximum recursion limit of 500 reached.
Do not call ode45 with 'Model' as the first input from within Model.m itself. Move the ode45 call (and the code necessary to cre...

4 years ago | 1

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Make num2str in engineering format
If you're using release R2021a or later I would use formattedDisplayText instead of evalc. wcutoff = 5.2e10; t = formattedDisp...

4 years ago | 3

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Example command not available
Do you have Communications Toolbox installed? Check using the ver function. ver comm

4 years ago | 0

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How to find the changing point in figure?
Take a look at the ischange function.

4 years ago | 0

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Why can't I open a file on MacBook?
I recommend not creating a variable named path, as path already has a meaning in MATLAB. See doc path for more information on th...

4 years ago | 1

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Custom defined data class not recognized
That class is part of the fwpck package. You will need to call it using the package name or import the package. y = fwpck.Globa...

4 years ago | 0

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I am having error using ode45 with Inputs must be floats, namely single or double
[r,eps_bar] = ode45(@(r,eps_bar)@(omega) (eps(r).(omega)-eps_bar).*(eps_bar+2.*eps(r).(omega))./(r.*eps(r).(omega)),tspan,1,opts...

4 years ago | 0

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Computational speed when the array dimension is large
Have you tried a stiffer solver? See this post on Cleve Moler's blog for more information about stiffness.

4 years ago | 0

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license for my app
For an official answer please contact Customer Service.

4 years ago | 0

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i keep getting " root' requires Symbolic Math Toolbox. Error in newtonbisection (line 46) fprintf("Optimal root of the given function: %f\n\n",root)". how to fix that? thanks
What value is given to the variable root in the code if the while condition is not satisfied? while eps>tolerence The answer i...

4 years ago | 0

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Too many input arguments
Do you need to implement Dijkstra yourself (as part of a homework assignment or school project) or do you just need to call some...

4 years ago | 0

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double2str and bin2str
See the functions listed on this category page in the documentation.

4 years ago | 0

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Why did this error message appear?
Since r is a double array, anything that you want to assign into it must be a double array or convertible into a double array. ...

4 years ago | 1

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When will MATLAB dump its Java dependencies?
The Release Notes for release R2021a state "Java® packages and subpackages that currently ship with MATLAB will not be available...

4 years ago | 0

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How to tell matlab to, instead of throwing an error message, give me a Boolean (e.g., 0 means I get error) when I try to use Horner command
Rather than explicitly type out a 32nd degree polynomial, why not use a for loop? Start with your accumulator containing the val...

4 years ago | 0

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Why does MATLAB dot product function interpret r as 2 different variables. I want to use trigonometric identities. How can I fix it?
If you want MATLAB to assume that r is real, tell it that. syms r1 % r1 could be complex syms r2 real % r2 must be real x1 = ...

4 years ago | 1

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how to calculate the execution time of program?
tic and toc is one way to measure the performance of your code. Other ways include the timeit function and the Profiler.

4 years ago | 0

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How to preserve nanosecond precision in datetime calculations (for large numbers)
Start off with the time as a symbolic object. dt=sym('1294871257.002060945'); If you don't and just start with dt as a double ...

4 years ago | 2

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Algorith doesnt work in program code for Thomas algorithm
If this is a homework assignment, I'm guessing there may be at least one or two examples in your textbook where they walk throug...

4 years ago | 0

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Combine data from 3 tables based on common datetime?
Are you storing your data as table arrays or as timetable arrays? If the former, consider converting the table arrays to timetab...

4 years ago | 0

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How to delete all rows of a matrix wherever any value is invalid (999)?
Let's make a sample matrix M with some 999 values present in columns 1 and 4. I'll also make a backup copy of it so we can modif...

4 years ago | 0

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Installing matlab r2018b in macbook air m1
From this Answers post: "MATLAB R2020b Update 3 and later are supported on Apple silicon Macs through the Rosetta 2 translation ...

4 years ago | 0

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Extract element from a table
Let's make a sample table. rng default listOfTypes = ["apple"; "banana"; "cherry"]; T = listOfTypes(randi(numel(listOfTypes),...

4 years ago | 0

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Answered
Unexpected resul when trying to plot from array "empty double row vector"
% >> x305a(1,404:end) Most likely x305a has fewer than 404 columns. As a smaller example: x = 1:10; x(1, 11:end) % 11:end is ...

4 years ago | 0