Community Profile

photo

Steven Lord

MathWorks

Last seen: Today Active since 2002

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.

Statistics

All
  • Treasure Hunt Participant
  • Scavenger Finisher
  • Thankful Level 4
  • Master
  • Solver
  • Personal Best Downloads Level 2
  • Editor's Pick
  • 36 Month Streak
  • 5-Star Galaxy Level 4
  • First Submission
  • Revival Level 3
  • Knowledgeable Level 4

View badges

Content Feed

Answered
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

| accepted

Answered
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

| accepted

Answered
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

Answered
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

| accepted

Answered
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

| accepted

Answered
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

Answered
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

| accepted

Answered
matlab home license activation
See this Answers post.

5 days ago | 1

| accepted

Answered
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

| accepted

Answered
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

Answered
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

Answered
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

Answered
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

| accepted

Answered
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

| accepted

Answered
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

| accepted

Answered
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

| accepted

Answered
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

Answered
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

| accepted

Answered
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

Answered
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

| accepted

Answered
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

| accepted

Answered
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

Answered
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

Answered
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

| accepted

Answered
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

Answered
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

| accepted

Answered
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

Answered
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

Answered
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

Answered
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

Load more