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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MATLAB Central Community 20 Year Anniversary Treasure Hunt participant badge
Awarded to Steven Lord on 07 Oct 2021
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From perpetual and individual Matlab student license to academic and permanent Matlab license
I recommend you contact Customer Service directly using this link or the Sales department directly using this link for help with...
5 hours ago | 0
How to efficiently pass input arguments to a compiled app?
See this documentation page.
8 hours ago | 0
| accepted
What is the difference between these two commands?
s = [3 4] What you wrote won't work. It may seem deterministic in this scenario but in general it's ambiguous. try [m n] ...
9 hours ago | 0
With contour of image how to change x and y axis?
As written you're using the contour(Z) syntax shown in the Syntax section on the contour function documentation page. The Descri...
1 day ago | 0
Appdesigner Question: Is it possible for a user to reset a default value?
One potential approach is to use custom settings. From that documentation page, "You can create custom settings to store and acc...
2 days ago | 0
Filtering test cases out of a test suite
I am writing a script that takes in a matlab.unittest.TestSuite object that contains several test cases from tests (call this te...
3 days ago | 0
Vectorized code slower than loops
Vectorization is one tool in your MATLAB toolbox, but so is the for loop. Each has its own pros and cons. I think Mike Croucher...
7 days ago | 3
What is the extended symbolic math toolbox?
It was a product that extended Symbolic Math Toolbox functionality. Many years ago (I don't remember the release offhand) the fu...
8 days ago | 1
| accepted
Hello, I'm trying to create a plot for an equation of motion defined as a function.
Please show (or even attach) the full and exact file. My suspicion is that the lines where you define those constants are ahead ...
8 days ago | 0
finding the value at a specific time from second-order ODE
You could call ode45 with just one output argument and then call deval, or you could call ode45 with the desired time as one ele...
10 days ago | 1
| accepted
Combine Two polyshape Objects Similar to addCell Functionality
p1 = nsidedpoly(4); p2 = nsidedpoly(5); The union function makes a polyshape with 1 region. P = union(p1, p2) Concatenation ...
11 days ago | 0
how would one use logic commands to run separate function files with single-statement intput?
Use the input function with the 's' option to allow the user to type in a string, or you could use uigetfile to let the user sel...
13 days ago | 1
| accepted
Spacing correction in documentation.
The spacing looks correct to me in the version of the documentation online to which you linked. Could you state which browser yo...
15 days ago | 0
Matlab Compiler: Is "userpath" always there and accessible?
I would probably try using the tempdir and/or tempname functions.
15 days ago | 0
Using accumarray or a similar method for tables
This wasn't an option in the release the original poster was using (the two functions required were released in release R2016b, ...
16 days ago | 1
Convert a Cell array to a timetable
If you have a set of row vectors in a cell array sampleCell = {1:10, 11:20, 21:30}; first to accomplish your stated goal you n...
16 days ago | 0
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Can the random function accommodate the randi function?
I would not position random as replacing the more specific pseudorandom number generation functions. See the Alternative Functio...
20 days ago | 2
| accepted
Input a variable into a plot title
With the introduction of the string array in release R2016b (and the ability to enclose text data in double quotes to create a s...
21 days ago | 25
| accepted
I want a Mathworks Polo Shirt
We have now opened the MathWorks Merch Shop. See this blog post for more information.
22 days ago | 1
| accepted
MATLab promotional items?
We have now opened the MathWorks Merch Shop. See this blog post for more information.
22 days ago | 0
May I have some Matlab stickers?
We have now opened the MathWorks Merch Shop. See this blog post for more information.
22 days ago | 0
Wondering if you have any merchandise for sale cause I'd love to look like a part of the MATLAB team 😀
We have now opened the MathWorks Merch Shop. See this blog post for more information.
22 days ago | 2
How do I get MathWorks Promotional Items or Accessories?
We have now opened the MathWorks Merch Shop. See this blog post for more information.
22 days ago | 0
how to calculate mape
The mape function was added to MATLAB in release R2022b.
23 days ago | 0
"platform" error after copying Matlab example to a PC
Comparing the version of the example from release R2023a and the version from the most recent release (as I type this, release R...
23 days ago | 0
| accepted
when open MATLAB there is such error on command window Error using settings. Too many output arguments. how to solve it
If you've written your own settings.m file, it's likely conflicting with the settings function that's part of MATLAB. Rename you...
24 days ago | 0
Error "gausswin requires Signal Processing Tool"
The gausswin function is part of Signal Processing Toolbox. Do you have this toolbox installed and licensed? To check if you hav...
24 days ago | 0
What is wrong with my approach to building this histogram?
From the documentation for the polarhistogram function: "polarhistogram(theta) creates a histogram plot in polar coordinates by ...
24 days ago | 0
If else statement now hanging up and error message Subscripting into a table using one subscript
If I remember correctly, indexing into a table array using parentheses and one subscript has never been supported. So if that wo...
24 days ago | 0
Why don't I need a comment character after an (...) ellipsis?
Because that's what the ellipsis is documented to do. From that documentation page: "The ellipsis symbol (...) continues the cur...
28 days ago | 1
| accepted
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