Les Beckham
Many years developing flight control algorithms and software
Programming Languages:
C++, C, C#, MATLAB, Assembly
C++, C, C#, MATLAB, Assembly
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Awarded to Les Beckham on 02 Nov 2023
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Awarded to Les Beckham on 01 Feb 2023
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Awarded to Les Beckham on 08 Feb 2013
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已回答
Adding zeros to a column vector to match a larger column vector
new_x= [x; zeros(length(y)-length(x), 1)]; % ^ ^ switch the arguments to zeros % use ...
Adding zeros to a column vector to match a larger column vector
new_x= [x; zeros(length(y)-length(x), 1)]; % ^ ^ switch the arguments to zeros % use ...
9 hours 前 | 0
已回答
Plots: aligning categorical y-axis labels
% create dummy data y = [1,2,3]; x = [5,10,20]; err = 0.5*ones(size(y)); % draw plot figure(1) yyaxis right errorbar(x,...
Plots: aligning categorical y-axis labels
% create dummy data y = [1,2,3]; x = [5,10,20]; err = 0.5*ones(size(y)); % draw plot figure(1) yyaxis right errorbar(x,...
12 hours 前 | 0
已回答
Resolution of plot code errors
Why are you trying to do this with symbolic variables? It works using simple numeric variables. x = linspace(-5, 5, 500); y =...
Resolution of plot code errors
Why are you trying to do this with symbolic variables? It works using simple numeric variables. x = linspace(-5, 5, 500); y =...
4 days 前 | 0
| 已接受
已回答
Issue with delete(obj)
Here are some modifications that should get you closer to what you wan't. Note the comments I've added in the code to point out...
Issue with delete(obj)
Here are some modifications that should get you closer to what you wan't. Note the comments I've added in the code to point out...
5 days 前 | 0
| 已接受
已回答
for loop does not iterate
Array indices in Matlab must be positive integers (or logical). You are trying to us xroots, a vector of complex numbers as the...
for loop does not iterate
Array indices in Matlab must be positive integers (or logical). You are trying to us xroots, a vector of complex numbers as the...
13 days 前 | 0
已回答
How to save the result of each loop separately
Perhaps this (using a cell array)? y = [3 4]; for i = 1:length(y) x{i} = zeros(y(i), 2) end
How to save the result of each loop separately
Perhaps this (using a cell array)? y = [3 4]; for i = 1:length(y) x{i} = zeros(y(i), 2) end
13 days 前 | 1
已回答
How would I plot this and then achieve minimum and maximum.
x = 0:0.1:15; % y=(x)^3/3-11(x)^2/2+24x << you were missing multiplication operators * % and the powers need to be .^ (element...
How would I plot this and then achieve minimum and maximum.
x = 0:0.1:15; % y=(x)^3/3-11(x)^2/2+24x << you were missing multiplication operators * % and the powers need to be .^ (element...
14 days 前 | 0
| 已接受
已回答
Hexadecimal Data Convert to signed int32
The hex2dec function assumes unsigned integer unless you tell it otherwise. You can either typecast the unsigned result to sign...
Hexadecimal Data Convert to signed int32
The hex2dec function assumes unsigned integer unless you tell it otherwise. You can either typecast the unsigned result to sign...
14 days 前 | 2
已回答
wildcard in filename for readtable does not work
You must call readtable with a valid filename for an existing file. It will not accept wildcards. You could use uigetfile to o...
wildcard in filename for readtable does not work
You must call readtable with a valid filename for an existing file. It will not accept wildcards. You could use uigetfile to o...
15 days 前 | 0
已回答
Indexing with min and numel
vector1 = 1:5 vector2 = 2:7 N = max(numel(vector1), numel(vector2)) [n,I] = min([numel(vector1),numel(vector2)]) I'm not sur...
Indexing with min and numel
vector1 = 1:5 vector2 = 2:7 N = max(numel(vector1), numel(vector2)) [n,I] = min([numel(vector1),numel(vector2)]) I'm not sur...
18 days 前 | 1
已回答
Code gets stuck loading when I try to run it.
In your SEGMENT 1 code you have this line where you are updating time (even though the comment says "Height Update"). I don't s...
Code gets stuck loading when I try to run it.
In your SEGMENT 1 code you have this line where you are updating time (even though the comment says "Height Update"). I don't s...
18 days 前 | 0
| 已接受
已回答
how to plot signals on the same scale
For the green one, just subtract the first element of the capacity vector from the entire vector in your plot command. For exam...
how to plot signals on the same scale
For the green one, just subtract the first element of the capacity vector from the entire vector in your plot command. For exam...
18 days 前 | 1
已回答
how to obtain the data from the middle of the binary file using fread in MATLAB?
The second argument to the fread function is the size of the data to read, not an index, as you appear to be trying to use it. ...
how to obtain the data from the middle of the binary file using fread in MATLAB?
The second argument to the fread function is the size of the data to read, not an index, as you appear to be trying to use it. ...
18 days 前 | 0
已回答
how to import file?
You were pretty close. Here is one approach, converting your third columns to arrays instead of extracting them as tables with ...
how to import file?
You were pretty close. Here is one approach, converting your third columns to arrays instead of extracting them as tables with ...
18 days 前 | 0
已回答
While loop in function
Perhaps you meant to test the absolute value of epsilon_a? %known veriables syms x f(x) = exp(-x) - x; eqn = f(x) == 0; mat...
While loop in function
Perhaps you meant to test the absolute value of epsilon_a? %known veriables syms x f(x) = exp(-x) - x; eqn = f(x) == 0; mat...
19 days 前 | 0
已回答
Determine the relational operator in an expression
If you can rely on x always being on the left in your "test" expressions, you can test for y being on the left in the result ret...
Determine the relational operator in an expression
If you can rely on x always being on the left in your "test" expressions, you can test for y being on the left in the result ret...
19 days 前 | 0
已回答
I want to plot parameters and time , with influence three others paramaters , but i dont know how to plot
Note that, in Matlab, functions must be defined at the end of a script. Your code seems to run just fine after reordering it. ...
I want to plot parameters and time , with influence three others paramaters , but i dont know how to plot
Note that, in Matlab, functions must be defined at the end of a script. Your code seems to run just fine after reordering it. ...
20 days 前 | 0
已回答
Piecewise function graph help
Use logical indexing: L = 200; d = 10; s = 30; r1_max = 22.36; r2_max = 120.4; r = 0:200; F = zeros(size(r)); idx ...
Piecewise function graph help
Use logical indexing: L = 200; d = 10; s = 30; r1_max = 22.36; r2_max = 120.4; r = 0:200; F = zeros(size(r)); idx ...
20 days 前 | 0
已回答
how to zero pad a vector to have the same amount of data as a vector with more data?
Try this: %%% goal: to have the length of 'in' equal the length of 'verb' %%% define inputs [in, fs] = audioread('smash_...
how to zero pad a vector to have the same amount of data as a vector with more data?
Try this: %%% goal: to have the length of 'in' equal the length of 'verb' %%% define inputs [in, fs] = audioread('smash_...
21 days 前 | 1
已回答
printing the name of the data containing a certain value in the workspace
a=10; b=20; c=30; d=40; reference=20; names = ["a", "b", "c", "d"]; [max_delta, idx] = max([a b c d] - reference); fp...
printing the name of the data containing a certain value in the workspace
a=10; b=20; c=30; d=40; reference=20; names = ["a", "b", "c", "d"]; [max_delta, idx] = max([a b c d] - reference); fp...
21 days 前 | 0
| 已接受
已回答
XTicks change in tiled figure if no breakpoint is set before for loop, even if xticks are used
I can't explain why your approach didn't work, but this seems to work. figure tiledlayout(3, 3); percent = 0:100; ticks = 0:...
XTicks change in tiled figure if no breakpoint is set before for loop, even if xticks are used
I can't explain why your approach didn't work, but this seems to work. figure tiledlayout(3, 3); percent = 0:100; ticks = 0:...
24 days 前 | 0
| 已接受
已回答
How do i find x from given y that is closest to my peak or at x=0?
Have you tried interp1?
How do i find x from given y that is closest to my peak or at x=0?
Have you tried interp1?
26 days 前 | 0
已回答
Convert z to e^(-sT) in transfer function
If you have the Control System Toolbox you can use the d2c function to convert from the z domain to the s domain. Note that thi...
Convert z to e^(-sT) in transfer function
If you have the Control System Toolbox you can use the d2c function to convert from the z domain to the s domain. Note that thi...
26 days 前 | 2
已回答
How to extrapolate the first 5 points
load points.mat plot(points(:,1), points(:,2), '.-'); grid on figure plot(points(:,1), points(:,2), '.-'); grid on xlim([1...
How to extrapolate the first 5 points
load points.mat plot(points(:,1), points(:,2), '.-'); grid on figure plot(points(:,1), points(:,2), '.-'); grid on xlim([1...
26 days 前 | 0
已回答
Wrong symbolic solution for trigonometry
It looks like your second solve construct only returns one of the solutions. Someone who knows the symbolic toolbox better than...
Wrong symbolic solution for trigonometry
It looks like your second solve construct only returns one of the solutions. Someone who knows the symbolic toolbox better than...
27 days 前 | 0
已回答
Recognize edges in mosaic-like background - draw horizontal lines and save line coordinates
Big caveat: I'm not even close to an image processing expert so there is probably a smarter way to do this. I noticed that the...
Recognize edges in mosaic-like background - draw horizontal lines and save line coordinates
Big caveat: I'm not even close to an image processing expert so there is probably a smarter way to do this. I noticed that the...
27 days 前 | 1
已回答
title with confusing words
sett = 'SISTEMI_DA_VALUTARE_SENZA_COMMISSIONI'; title(sett, 'Interpreter', 'none') If you read the documentation you will have...
title with confusing words
sett = 'SISTEMI_DA_VALUTARE_SENZA_COMMISSIONI'; title(sett, 'Interpreter', 'none') If you read the documentation you will have...
27 days 前 | 0
| 已接受
已回答
How to create tiledlayout grid in vertical order
The tiles are always numbered by row, column, but you can plot into the tiles in whatever order you want by specifying the tile ...
How to create tiledlayout grid in vertical order
The tiles are always numbered by row, column, but you can plot into the tiles in whatever order you want by specifying the tile ...
27 days 前 | 0
已回答
eci2lla altitude error?
lla = eci2lla([-6.07 -1.28 0.66]*1e6,[2010 1 17 10 20 36]); lat = lla(1) lon = lla(2) So, this point is slightly above the E...
eci2lla altitude error?
lla = eci2lla([-6.07 -1.28 0.66]*1e6,[2010 1 17 10 20 36]); lat = lla(1) lon = lla(2) So, this point is slightly above the E...
28 days 前 | 0
| 已接受
已回答
Trouble with date conversion
As @Stephen23 said, it is better to keep the date and time as a datetime array. See below. opts = delimitedTextImportOptions; ...
Trouble with date conversion
As @Stephen23 said, it is better to keep the date and time as a datetime array. See below. opts = delimitedTextImportOptions; ...
28 days 前 | 2
| 已接受
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