Steven Lord
MathWorks
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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Content Feed
bitget function working explanation needed
Here's an unsigned 8-bit integer. x = 0b10011010u8 % x is 10011010 The lowest order bit of x is 0. This makes sense since x is...
24 hours ago | 0
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How can I create this script??
If you're trying to create examples like the ones in this part of the documentation take a look at the tools described on this d...
2 days ago | 0
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How to turn a function handle with 3 inputs (1 variable and 2 parameters) and then assign the inputs parameters and get a function handle with one input? ?
Let's look at the actual time difference between the two approaches. y=1; z=1; f=@(x,y,z)x+y+z; g=@(x)f(x,y,z); h = @(x) x+...
2 days ago | 0
how can I plot in symbolic math with defined x axis limit and Y axis limit with marker at specific points
syms x T=[1 x x^2 x^3]; l=1; N=[1 0 0 0;0 1 0 0;-3/l^2 -2/l 3/l^2 -1/l;2/l^3 1/l^2 -2/l^3 1/l^2]; g=[1 2 3 4]'; f=T*N*g; ...
2 days ago | 0
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How to generate random coordinates and store the values?
The easiest solution is not to use a for loop at all. p = randi([-10 10], 5, 2) If you must use a for loop, preallocate p to b...
3 days ago | 0
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Standard keyboard shortcut editor
You can customize the keyboard shortcuts via the Preferences window. You can change individual actions or you can change between...
3 days ago | 1
Can't create a folder outside of the current directory
Use fullfile instead of manually concatenating the path and file name then use the function form of mkdir rather than the comman...
4 days ago | 0
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Standolane application is not working like in app designer
That picture suggests there is an issue but it doesn't say anything about what that issue is. Can you review the log file linked...
6 days ago | 0
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hi i want to ask,why matlab cannot process the condition for the while loop ? Thank you!
Since you're using the short-circuiting or operator you should check the size of the inputs first. Rather than asking if they're...
6 days ago | 0
Why is opening a file in compiled mode different than direct Matlab mode?
If you're trying to have your compiled application run code that was not present and included in the application at the time the...
9 days ago | 0
How to compare two non-integer value together?
Is what you're trying to do as simple as just multiplication and relational operators? x1=85.36; x2=73.52; x2 >= 0.8*x1
10 days ago | 0
does two polygons interest or not?
You may be able to use the approach from this blog post that determines if two states (represented as polyshape objects) share a...
10 days ago | 1
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why I cant use laplace?
which -all laplace The laplace function is only defined for symbolic inputs. Your ut is not symbolic, it is a numeric array. A...
10 days ago | 0
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Does lidarViewer app exist?
The last line of the documentation page for that app says "Introduced in R2021b". If you're using release R2021a (as indicated b...
11 days ago | 0
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Saving values from a for loop in a table
temp = [1;2;4;5;1;8;3;4]; % temperature ind = [1;1;1;1;2;2;2;2]; % index cycle = [1;1;2;2;1;1;2;2]; % cycle f = table(cycle,t...
11 days ago | 0
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Renumber matrix with some restrictions
I'm not completely sure how you got from conn to Con, in particular I'm not sure how you generated the third row in Con. [3 4] d...
11 days ago | 0
Error using matlab.graphics.chart.primitive.GraphPlot/highlight>checkEdgesNodePair
s = {'a' 'a' 'a' 'a' 'a' 'b' 'b' 'b' 'b' 'c' 'c' 'c' 'd' 'd' 'd' 'e' 'e' 'e' 'e' 'f' 'f' 'f' 'f' 'g' 'g' 'g' 'g' 'g'}; t = {'a'...
12 days ago | 2
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get number of output arguments of a function handle
Calling nargout on the function handle itself may give an answer. nargout(@sin) % The sin function returns 1 output But it may...
12 days ago | 0
double error syms code
Preallocate C to be a sym array. syms x C=zeros(3, 6, 'sym') C(2, 3) = x.^2
12 days ago | 0
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matlab url encoding doubt
s1 = 'Hello\nWorld' s1E = urlencode(s1) s2 = sprintf('Hello\nWorld') s2E = urlencode(s2) whos s1 contains 12 characters inc...
14 days ago | 0
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Can't load saved yoloV2 network in standalone Matlab app 2021a
See the Tip in the "Fixing Callback Problems: Missing Functions" section of this documentation page. Use the %#function pragma t...
17 days ago | 0
ifft matlab to cpp
The ifft function supports the extended capability of C/C++ code generation using MATLAB Coder. If you have MATLAB Coder availab...
20 days ago | 0
How to rename a graph node labels ?
Let's take a sample graph and look at it. [B, V] = bucky; B10 = B(1:10, 1:10); V10 = V(1:10, :); G = graph(B10); plot(G, 'X...
26 days ago | 0
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Convert time vector of Year, Month, Day, Hours, Minute to Decimal format
% Sample data d = datetime(2019, 10, (2:6).', 12, 0, 0) startOfYear = dateshift(d, 'start', 'year') p = years(d-startOfYear) ...
1 month ago | 0
How to list all isolated vertices and remove it from the graph?
rng default A = sprandsym(10, (5/100)); G = graph(A, string(1:10)); % Give the nodes names plot(G) isolatedNodes = degree(G)...
1 month ago | 0
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I am getting an error as "Check for incorrect argument data type or missing argument in call to function 'exp'." can anyone help me out?
Most likely your image data is of an integer type. The exp function is not defined for the integer types. one = int8(1); y = e...
1 month ago | 0
Have an error with dot, while searching value in struct
Dynamic field names works if the entry inside the parentheses is a field name. "a.b" is not a field name, it represents multiple...
1 month ago | 1
Printmat no longer works
Probably the simplest close replacement would be to turn your matrix into a table using array2table (specifying both RowNames an...
1 month ago | 0
The slicing is not complete!
Most likely some of the numbers that are displayed as 1 are stored as a value that is very close to but not down-to-the-last-bit...
1 month ago | 0
