回答済み
I am getting errors that I am using ".*" and "*" wrongly in my matrix multiplications in my code. I am poor at matrix algebra and don't know when to use each operator.
Read through this documentation page and ask yourself the question: do I want to multiple each element of one array by the corre...

約2ヶ月前 | 0

回答済み
Plotting a graph based on a large table
When you say "haven't got a clue how to do it" does that mean that you know what type of plot you want to create but don't know ...

約2ヶ月前 | 0

回答済み
Subtracting matrices by column and performing a summation.
Some functions you'll find useful are the diff, abs, and sum functions. The latter two are pretty easy to find in the doc by sea...

約2ヶ月前 | 0

回答済み
Choose any workspace from dbstack for evalin
It comes to me whether I can specify any workspace found in the dbstack here. No. For the evalin function in MATLAB you can spe...

約2ヶ月前 | 0

| 採用済み

回答済み
splitting a vector into separate vectors
Can you dynamically create variables with numbered names like V1, V2, V3, etc.? Yes. Should you do this? The general consensus ...

約2ヶ月前 | 1

回答済み
Deployed Matlab function with strage errors: functions not found
I am fairly certain that the limitation described in the "Do Not Rely on Changing Directory or Path to Control the Execution of ...

約2ヶ月前 | 1

回答済み
Using a variable in an input prompt
Another possibility you can use in recent releases of MATLAB (since I think release R2016a) is to use a string array. ii = 5; ...

約2ヶ月前 | 0

回答済み
Compare char data in a cell {'x'} to a character 'x'
You've got a lot in here. I'm going to step through certain parts. Let's start off with this comment (formatting added, your wo...

約2ヶ月前 | 0

回答済み
How do i multiply this matrix to work in MATLAB, it keeps sending an error
What did you expect to happen when you typed p. in your expression? That's not valid MATLAB syntax. If you had a number instead ...

約2ヶ月前 | 0

回答済み
Changing the value of only one parameter causes a problem (possibly with while loop)
Let's look at the while loop. while (V(i) >= Vmax) D(i)=floor(20*(sqrt(4*Q(i)/(pi*Vmin))))/20; V(i)=Q(i)/(pi...

約2ヶ月前 | 0

| 採用済み

回答済み
Examples missing from requirements toolbox installation
I'm not 100% certain, but it looks like this page from the release R2022b documentation (the third entry under Topics in the Req...

約2ヶ月前 | 0

回答済み
Duration of time values for separate datasets and plotting on x-axis
set0_time=["085440","091530","092000","093020","100000","100020","101325"]; set0 = set0_time; set0_ydata=[30 50 60 72 82 85 88...

約2ヶ月前 | 0

| 採用済み

回答済み
How can I bring back the command prompt in the command window after it disappeared ??? I cant execute commands !! if I press enter the commands disappear,
In the lower-left corner the status message says "Waiting for input". Does your code call the input function (perhaps with an em...

約2ヶ月前 | 0

| 採用済み

回答済み
How to reopen tabs for different projects
Sounds like you may want to create a MATLAB Project for each of your projects.

約2ヶ月前 | 0

回答済み
Undefined function or variable 'aviread'. >> aviread('traffic.avi'); Undefined function or variable 'aviread'.
There used to be an aviread function in MATLAB, but I believe it was removed sometime around release R2014b. The recommended rep...

約2ヶ月前 | 1

回答済み
how i can show in matlab tha sqrt(x^2)=x in symbolic toolbox
That's not true in the general case. A = 1; h0 = 1; dhmax = 2; B = -5; lhs = ((2*A*dhmax + B*h0)^2/h0^2)^(1/2) rhs = (2*A*...

2ヶ月前 | 1

| 採用済み

回答済み
An absolutely ascending sequence
Those who have said there is no function for this are incorrect. The issorted function allows you to ask if an array is sorted a...

2ヶ月前 | 4

回答済み
Strange case of Code analyzer and if-else block
It’s rather obvious that only one of the blocks will execute, and it seems redundant for the analyzer to flag this. In this cir...

2ヶ月前 | 0

| 採用済み

回答済み
The rotation in the rectangle function in matlab cannot be used, but the 2022 version can be used.
try rectangle('Position',[1 2 5 6],'Rotation',45); catch ME fprintf("This command threw the following error:\n%s", ME...

2ヶ月前 | 0

| 採用済み

回答済み
How can I fix ODE45 returning a straight line when using specific `tspan` points, instead of showing dynamic behavior over the time range?
Your ode_LR function is defined to accept four input arguments, the two required arguments plus two additional parameters. func...

2ヶ月前 | 0

回答済み
error running getting started code
If you're using this matrix: a = [1 3 5 2 4 6 7 8 9]; the warning is correct. The matrix y...

2ヶ月前 | 0

回答済み
Using "unique" to identify unique values AND number of occurrences of each unique value
Use the groupcounts function. A = {'AGAP001076-RD' 282 0.67229 'AGAP001076-RD' 285 0.75292 'AGAP001076-RD' 286 0.66957 'AGAP...

2ヶ月前 | 0

| 採用済み

回答済み
Having trouble printing variables I use as inputs to a function.
Let's look at a few selected lines of your code. The only variable that gets displayed with NaN values is uvwAndrSol so let's fo...

2ヶ月前 | 0

回答済み
No matter the NOA matrix I enter, the result I receive is "empty double column vector" and I want to receive a numerical value.
Let's look at the last column of your two matrices. syms phi_a phi_o phi_n %Rotation in a T_a = [cosd(phi_a), -sind(phi_a), 0...

2ヶ月前 | 0

回答済み
How to convert a function handle to symbolic function?
Are you hoping to use this fit object as the right-hand side of a differential equation ? If so keep in mind that fit objects ha...

2ヶ月前 | 1

回答済み
bitshift in matlab vs ishft in fortran
Instead of using bit operations yourself, why not just use typecast? t = 'int32'; x = randi([intmin(t), intmax(t)], 1, 2, t) %...

2ヶ月前 | 0

回答済み
N-dimension curve fit how to
See the Multiple Regression section on this documentation page. While that example only uses the first power of each of the vari...

2ヶ月前 | 0

回答済み
Is there a meaningful guideline on when to use parentheses vs square brackets vs curly brackets in writing MatLab code?
Parentheses Generally speaking, using parentheses to index into a variable usually does one of two things. If the variable is ...

2ヶ月前 | 2

| 採用済み

回答済み
How do I print a % character into a file
If you don't need str inside your code other than to write it to the file, rather than creating it just write directly to the fi...

2ヶ月前 | 1

回答済み
Why do we get MATLAB fatal errors saying “Access violation detected”?
Please contact Technical Support directly using this link. Send any crash log files to Support and work with them to determine t...

2ヶ月前 | 0