Réponse apportée
How can I insert zeros into every other index of a column vector?
@carles Martinez >> and in an horizontal array? Whether A is vertical or horizontal, use upsample. A = 1 2 3 ...

environ 3 ans il y a | 0

Réponse apportée
How to write summation in matlab with two variables?
I am new to sym, so I thought I would give this a try. Please check carefully, as I did not have time to do so. I hope you are d...

environ 3 ans il y a | 0

| A accepté

Réponse apportée
Newton Raphson - saving all values and using last iteration value as initial for next
The final x values match your spreadsheet results. Your suggested x0 converges too soon to be interesting. Set it to 1.0 to actu...

environ 3 ans il y a | 0

Réponse apportée
Index in position 1 is invalid. Array indices must be positive integers or logical values.
Would be very useful if you are able to post a minimal program exhibiting the error that we could run. In the debugger, set the ...

environ 3 ans il y a | 0

Réponse apportée
Index in position 1 is invalid. Array indices must be positive integers or logical values.
Would be very useful if you are able to post a minimal program exhibiting the error that we could run. In the debugger, set the ...

environ 3 ans il y a | 0

Réponse apportée
I need help with using a while loop
Looks like you are trying to solve a difference equation. Take a look at what is happening: c1 = 0.1; v1 = 0.1; v2 = 1; p = ...

environ 3 ans il y a | 1

| A accepté

Réponse apportée
Keep a temporary variable after parfor
>> Parfor loop works when i comment out the plotting parts of the code. I tried what you said and only experienced what you wro...

environ 3 ans il y a | 0

| A accepté

Réponse apportée
how to fix Warning: Imaginary parts of complex X and/or Y arguments ignored
If you have a negative number raised to a non-integer power, you can sometimes get a complex number. Take a look at: https://ww...

environ 3 ans il y a | 0

Réponse apportée
Solving a simple equation
Sorry, no idea if this is right. clc, clearvars %Angle = B %Thickness = u %Inner Radius = p %Developed length = L %L = L1+...

environ 3 ans il y a | 0

| A accepté

Question


Convert near zero complex parts to 0
In R2020a, I took a complex vector and converted near zero parts to zero. It took two long lines to do it. Can it be done in one...

environ 3 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
What am I doing wrong here? I am trying to recreate following highlighted equations in the table.
clc; clear; clf ep = linspace(0,1); m1 = 1.5; m2 = 3.8; ep0= 1; alpha = 0.785; epp = 0.11; qep = (2.76*ep.*cosh((3*ep)-1.92)...

environ 3 ans il y a | 0

| A accepté

Réponse apportée
Script not found in the Command Windows
I am expecting that you will get the following: >> which essai 'essai' not found. Write down the folder where your essai.m fi...

environ 3 ans il y a | 0

Réponse apportée
Obtaining the envelope of AM signal using hilbert transform
In general, if you increase the carrier frequency, you will get a better envelope. Specific to your figure, to remove the rippl...

environ 3 ans il y a | 0

Réponse apportée
computing vectors with string and numbers (easy question)
Here is code that keeps the indexing scheme based upon the order in which the names occur in your vector of strings. >> S = ["H...

environ 3 ans il y a | 1

| A accepté

Réponse apportée
computing vectors with string and numbers (easy question)
>> S = ["joe" "april" "andrea" "joe" "andrea"] S = 1×5 string array "joe" "april" "andrea" "joe" "andrea" ...

environ 3 ans il y a | 0

Réponse apportée
Simulating a drone and bird as radar targets
Sounds like a good project. Personally, I would take a movie of a bird and a drone, and then try to reconstruct a 3D polygon of ...

environ 3 ans il y a | 0

Réponse apportée
How to generate a list of random ID which can later be used instead of participant name?
Due to the cyclist remark about homework, I am just starting the script. It leaves out certain patterns like 'a9a9' since it is ...

environ 3 ans il y a | 0

| A accepté

Réponse apportée
Syntax Question, Why does this equal zero?
Good question. :) >> 1 - 7*( sym(8/7) - 1 ) ans = 0 % you are right; the answer is 0 For double numbers, look at the format...

environ 3 ans il y a | 1

Réponse apportée
Forcing Page Breaks in MATLAB
The official 2016 answer is here, and no discernible updates since 2016. It would be great if MathWorks would add that to Live E...

environ 3 ans il y a | 0

Réponse apportée
how to get the mean for specific rows number of one columns
M = [ ... 1 5 2 7 3 9 1 9 2 7 3 9 ]; T = array2table( M, ... 'VariableNames',{'Month','...

plus de 3 ans il y a | 0

| A accepté

Réponse apportée
Vector. Change the way my program gives me the answer.
v = [1 2 -3 4]; v( diff( sign( [v(1) v] ) ) ~= 0 ) ans = -3 4

plus de 3 ans il y a | 1

Réponse apportée
Vector. Change the way my program gives me the answer.
v = [1 2 -3 4]; n = 1; l = length (v); ii = 1; c = []; while (n < l) a = v(n); b = v(n+1); n = n+1; % if (a <...

plus de 3 ans il y a | 1

Réponse apportée
Group data in bins
Hope this is close to what you are looking for. EDGES' ans = 0 0.5000 1.0000 1.5000 2.0000 ...

plus de 3 ans il y a | 0

Réponse apportée
How to solve matrix function in Matlab?
Define Z = AXB + C - X You have to start off with your initial best guess for X based upon the nature of the model. For lack of...

plus de 3 ans il y a | 1

Réponse apportée
Creating blocks of average values from a series but avoiding dynamic variable names
Since you have 5 groups of 100 numbers, I thought you wanted the mean of each group. That gives 5 means. So I did not understand...

plus de 3 ans il y a | 1

| A accepté

Réponse apportée
plot discrete time domain signals
I recommend using following substitutions: plot(t,y) axis( [-1 10 0 1])

plus de 3 ans il y a | 0

| A accepté

A résolu


Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 1 ...

plus de 3 ans il y a

Réponse apportée
Imbedded If statement in Function help!
Did you know that >> logical(1) + logical(1) ans = 2 and that (age>50) is a logical?

plus de 3 ans il y a | 1

Réponse apportée
In Online Matlab under App menu, Signal Analyzer not working?
The Signal Analyzer app comes with a purchase of the Signal Processing Toolbox. Please review this short video: Signal Analysi...

plus de 3 ans il y a | 0

| A accepté

Réponse apportée
Computer to boost MATLAB operation
As @Jan pointed out, it is very important that you run your profiler to find out where your time is being spent and focus on tho...

plus de 3 ans il y a | 2

| A accepté

Charger plus