Les Beckham

Last seen: Today

99 total contributions since 2013

Many years developing flight control algorithms and software

Les Beckham's Badges

Answered
How to print mathematical equations in menu
I expect that what you want is not as simple as this, but as an initial guess at what you are looking for, try this. I don't be...

28 jours ago | 0

Answered
How to make my code more concise and efficient ?
I suggest using cell arrays. See documentation here: https://www.mathworks.com/help/matlab/ref/cell.html Replace "_cty1" with {...

environ un mois ago | 0

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Answered
error in plotting clipped sinewave
Your problem is that y is not a vector. In the case of your posted code, y will be the value that it is set to on the last pass...

environ un mois ago | 1

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Answered
code is not 'return'-ing
return does not mean 'restart'. return in the context of a script actually means 'abort' or 'return to the command line and sto...

environ un mois ago | 0

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Answered
Create x and y vectors?
Try this: delta = 2; % dx, dy increment N = 10; % desired number of points x = 1:delta:delta*N; y = 1:delta:delta*N'; % tran...

2 mois ago | 0

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Answered
How to use a Loop to repeat two equations using the previous answers as the new variables.
This shows how to do the iteration using indexing and a loop instead of typing out each iteration manually: I'm not sure that t...

2 mois ago | 0

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Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

2 mois ago

Answered
How can one extract a column based on a value of another column?
>> A = [ 0 1; 1 0; 0 2]; >> A_0 = A(A(:,1)==0,2) A_0 = 1 2 >> A_1 = A(A(:,1)==1,2) A_1 = 0

5 mois ago | 0

Answered
How to reduce decimal point in .dat file?
For your two alternative ways of saving this data into a text file, try the following two options. Please read the documentatio...

6 mois ago | 0

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Answered
How do I plot a scatter plot where the x is the position of the element in a vector and the y is the value of the element in the vector?
A = [1; 6; 2]; scatter(1:length(A), A);

6 mois ago | 1

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Answered
Hex to binary character array
This string is way too long to be converted to a decimal (or binary) number directly. It is actually 100 hex digits long (not 1...

7 mois ago | 1

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Answered
using fget1 to read text file. Need help sorting data
The link that Walter provided looks promising. If you wish to pursue the processing on your own, here is a script that will rea...

7 mois ago | 1

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Answered
What is wrong with this code?
If you are trying to plot the step and impulse responses of your transfer function you need to call step() and impulse() as func...

7 mois ago | 0

Answered
How to have a string change based on user input
I've not tried accessing this data source or running your code, but I'm pretty sure that you need to change the following lines ...

7 mois ago | 1

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Answered
What goes before this?
You can change your 'Stuff =' line to the following: Stuff = sprintf('%s %s is the %d day of the year.', Month,Date,N); Or, yo...

7 mois ago | 0

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Answered
Changing amount of decimals in between loops
Just index into the vector that you created that specifies the number of places to which you wish to round for that iteration in...

7 mois ago | 0

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How can I scope using degrees insted of seconds?
The Simulink Scope block always uses simulation time as the x axis. If you wish to plot two simulation signals against each oth...

8 mois ago | 1

Answered
"Colon operands must be all the same type, or mixed with real scalar doubles" error I'm trying to run excel file into Matlab function
Well there are several things wrong with this code. You can't use size() to extract things from an array. Replace frq= size(Si...

9 mois ago | 0

Answered
How to plot phase plane only using trajectory equation?
Try something like this: c1 = 1; % replace with your desired constants c2 = -1; t=linspace(0, 10, 500); % adjust for your ...

9 mois ago | 0

Answered
Sum the digits of a number?
I know it sounds too easy to be true but this manipulation is actually the same as modulo 9. No loops or string conversions need...

9 mois ago | 2

Answered
How to find a unexpected high value and turn it to zero?
Here is a way to do this without a loop (using logical indexing) A = [2 3 4 2;5 6 7 3;8 9 0 6; 5 6 1 80;2 3 8 5;3 5 13 4] idx ...

9 mois ago | 0

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Answered
How to block out code in Live Script
%{ a = 1; b = 2; %} c = 3;

9 mois ago | 0

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Answered
How to include a vertical line at the sample when instant of landing
When I run your code, I don't get the error you cite on line 54. That seems to work fine. The only issue I found was when dete...

9 mois ago | 0

Answered
I used to be able to see "Command Window" and "Command History" at the same time, now I must switch back and forth?
If you bring the Command History to the top you can grab the top edge of that window (where the title 'Command History' is) and ...

9 mois ago | 0

Answered
how to print a table
This should be close to what you want. However, I have used the logical not, and, and or functions which appear to be diffferen...

9 mois ago | 0

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Answered
Run a code for 100 years
I don't think the results are going to be very interesting but you could do what you are asking as follows: ro=1.49e11; ...

10 mois ago | 0

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Answered
Using Inequality in a For loop
Walter has correctly shown how to express mutiple inequality conditions in Matlab (you must include the & (and) operator). Howe...

10 mois ago | 1

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Answered
how to fill between 2 graphs
What do you mean by "fill the gap"? Do you want to connect the start and end points so that this becomes a closed curve? If so...

10 mois ago | 0

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Answered
Store matrices under different variable names within a loop?
Make A a 4x4x4 three-dimensional matrix instead of creating multiple 4x4 matrices: mat = randi([0, 9], [4,16]) A = zeros(4,4,4...

10 mois ago | 2

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Answered
Fill command issue for time series
Based on your sample data, you need to make a simple change to your code. Since your vectors are columns, you need to concatena...

10 mois ago | 1

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