Steven Lord
MathWorks
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I joined The MathWorks in the Technical Support department during the summer of 2001 and transferred into the Quality Engineering department in March of 2004. I now work qualifying the core MATLAB numerical functions (PLUS, MINUS, LU, FFT, ODE45, etc.) Professional Interests: mathematics, MATLAB For assistance with MATLAB question please post to MATLAB Answers or contact Technical Support using the Contact Us link in the upper-right corner of the page instead of contacting me directly.
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Reading a string & sorting it into usable variables
Let's take a sample string. S = "Layup: [45/-45/0/90/90/0/-45/45]"; Get the text after the leading [ S2 = extractAfter(S, "["...
1 día hace | 0
I have downloaded this package, but can not seem to use the "readDistance' command.
Searching the documentation for functions named readDistance, I found two hits on the first page. The first one requires the MA...
1 día hace | 0
Confidence interval in fit
Use the confint function on the object returned by fit.
3 días hace | 0
Dialog box Unable to resolve the name 'matlab.io.internal.xlsreadSupportedExtensions' error prevents me from opening a file
The fact that the error occurs on line 5 of pad (which in my installation of release R2025b is completely blank) in a call to re...
7 días hace | 0
MATLAB standalone App Dynamic Class
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
8 días hace | 0
Indexing behavior of table properties
In the former case, it is table's indexing code that is performing all the indexing steps. It knows how to index into the proper...
9 días hace | 1
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pathdef and resulting path very long
If you have a lot of products and/or add-ons in your installation, the path may have a lot of entries. V = ver; S = split(path...
10 días hace | 0
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fread a double that's been broken up into four 16 bit words
Let's make four random 16 bit integers. A = randi([intmin('uint16'), intmax('uint16')], 1, 4, 'uint16') Now we can typecast th...
10 días hace | 2
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How to read in m-files into a Matlab-generated-Exe
From the documentation "MATLAB Runtime only works on MATLAB code that was encrypted when the deployable archive was built. Any f...
11 días hace | 0
Where can I download matlab/simulink example projects?
You're probably not going to be able to run the whole example without all the products listed in the box in the upper-right corn...
15 días hace | 0
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How do I use 'intersection' to get the overlapping line between two polyshapes?
These two polyshapes touch but do not intersect. x1 = [1 4 4 1]; y1 = [1 1 4 4]; x2 = [4 6 6 4]; y2 = [2 2 3 3]; poly1 = po...
24 días hace | 1
MATLAB crash during matrix multiplication in Matlab Function
Can you confirm that you've looked in the locations given in this Answers post and cannot find any crash log files created at th...
29 días hace | 0
String to double conversion misunderstanding
The mistake is that you're using command form for calling the class function, not function form. These: class ACVoltageR class...
alrededor de 1 mes hace | 2
What is the proper way to clean up internal timers when deleting a MATLAB class object?
Depending on exactly how you're creating the timer object, if you're using release R2024b or later perhaps creating a weak refer...
alrededor de 1 mes hace | 0
Determine which delaunayTriangulation Constraints correspond to input constraints?
I have not looked at the spatialgraph2D tool Matt J suggested, but I suspect you can do the same thing using functionality inclu...
alrededor de 1 mes hace | 0
CAT12 fails in MATLAB R2025b due to WebGL/ANGLE OpenGL incompatibility, but works in R2023a
The Release Notes state, among other things: "Calling the opengl (R2025a) function has no effect. To query the graphics renderer...
alrededor de 1 mes hace | 0
does installing toolbox that has different version than your matlab program cause a problem
For MathWorks toolboxes, I believe the Installer and Add-Ons Manager ought to disallow you from "mixing and matching" releases. ...
alrededor de 1 mes hace | 0
Unbale to write scrips and program in MATLAB for application level
I suggest you start with the free MATLAB Onramp tutorial to quickly learn the essentials of MATLAB.
alrededor de 2 meses hace | 2
Mixing name/value pair syntax
Suppose I show you this call. How would you as a human interpret it, and how would MATLAB interpret it (were it syntactically le...
alrededor de 2 meses hace | 0
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I want to define inputs for the function quantized_signal
Are you asking in general about how to call functions in MATLAB? If so you probably want to look at this section of the Getting ...
alrededor de 2 meses hace | 0
Calculate mean and standard deviation from 30-years of global wind data
Consider using groupsummary, specifying the groupbins input argument to control how the data is discretized into bins.
alrededor de 2 meses hace | 0
can we give access to the external users
Please contact Customer Service directly using this link.
alrededor de 2 meses hace | 0
How to keep formatting when cutting and pasting to office
Try right-clicking in the email and selecting "Keep Source Formatting" under Paste Option in the context menu that comes up.
alrededor de 2 meses hace | 0
Timetables not fully supported by plot tools?
Let's say that with basic fitting, you wanted to fit a quadratic (y = a(1)*x^2+a(2)*x+a(3)) to your data. If the x data was doub...
alrededor de 2 meses hace | 0
Dealing with Duration format
Use detectImportOptions to see how MATLAB would decide to import the data by default based on the contents of the file. Once you...
alrededor de 2 meses hace | 0
Request to rehost MATLAB network license (1102419) to new server IP
Please contact Customer Service or Technical Support directly using this link.
2 meses hace | 0
Why are the functions constSincNet and SincNetLayer absent in the "Speaker Identification Using Custom SincNet" example?
Please click on the "Copy Command" button in the upper-right corner of the example page then paste that command into MATLAB and ...
3 meses hace | 0
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webread can't read the table of a website
Are you trying to read in the data sets? If so I'd look at the "Download Dataset" link in the upper-right corner. Once you have ...
3 meses hace | 0
Add a datestr to duration data to get in datestr format
Rather than using date strings or serial date numbers, use datetime arrays. x = 1:10; dt = datetime(2025, 12, x); y = x.^2; ...
3 meses hace | 1
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Find position of cell array within another cell array or table or in a structure
Are you using a graph or digraph object? Do you have the additional struct information stored as a separate variable or have you...
3 meses hace | 0
