Answered

discrete time signal, i am not able to generate a function for the following question

Try this to fix the error: N1 = 0; N2 = 8; alpha = 0.8; figure(1) x= alpha .^ (N1:N2); plot(x)

discrete time signal, i am not able to generate a function for the following question

Try this to fix the error: N1 = 0; N2 = 8; alpha = 0.8; figure(1) x= alpha .^ (N1:N2); plot(x)

20 jours ago | 0

Answered

How to multiply 2 fft's with different lengths?

Is this your desired effect? [x,Fs]=audioread('hello.wav'); sound(x,Fs); T=1/Fs; disp('Wait for music to complete') pause( ...

How to multiply 2 fft's with different lengths?

Is this your desired effect? [x,Fs]=audioread('hello.wav'); sound(x,Fs); T=1/Fs; disp('Wait for music to complete') pause( ...

20 jours ago | 0

Answered

How can I run multiple iterations that plot on the same graph?

If you are new to Matlab programming, then you are probably used to a for-loop and you are plotting the curve in each iteration....

How can I run multiple iterations that plot on the same graph?

If you are new to Matlab programming, then you are probably used to a for-loop and you are plotting the curve in each iteration....

20 jours ago | 0

Answered

How to delete/cancel trailing zeros in complex and imaginary numbers?

a = 1.22000000 + 2.150000000i fprintf("%g + %gi\n", real(a), imag(a)); fprintf("%.2f + %.2fi\n", real(a), imag(a));

How to delete/cancel trailing zeros in complex and imaginary numbers?

a = 1.22000000 + 2.150000000i fprintf("%g + %gi\n", real(a), imag(a)); fprintf("%.2f + %.2fi\n", real(a), imag(a));

29 jours ago | 0

Answered

How do i create a large matrix with a formula?

Since you did not specify T and f, I assume you wanted symbolic notation. (I picked N = 10 to show a brief output.) N=10; n = ...

How do i create a large matrix with a formula?

Since you did not specify T and f, I assume you wanted symbolic notation. (I picked N = 10 to show a brief output.) N=10; n = ...

29 jours ago | 0

Answered

How to find the CUP time used by each function in my code?

If you need a profile of the relative time spent in every function when running your entire script, then while viewing the main ...

How to find the CUP time used by each function in my code?

If you need a profile of the relative time spent in every function when running your entire script, then while viewing the main ...

environ un mois ago | 0

| accepted

Answered

after applying a filter -i design- to a real signal, it returns complex signal after ifft

Your imaginary part only is non-zero due to the usual floating point roundoffs and truncations. Fix this using round: signal=if...

after applying a filter -i design- to a real signal, it returns complex signal after ifft

Your imaginary part only is non-zero due to the usual floating point roundoffs and truncations. Fix this using round: signal=if...

environ un mois ago | 0

| accepted

Answered

How to construct array with certain slope ?

Look at this rotation script example: https://www.mathworks.com/matlabcentral/answers/93554-how-can-i-rotate-a-set-of-points-in...

How to construct array with certain slope ?

Look at this rotation script example: https://www.mathworks.com/matlabcentral/answers/93554-how-can-i-rotate-a-set-of-points-in...

environ un mois ago | 0

Answered

Problems with changing the order of a binary representation

NJ=4 for i = 1:2^NJ-1 struct(i,:) = fliplr(dec2bin(i,NJ)); end struct = 15×4 char array '1000' '0100' ...

Problems with changing the order of a binary representation

NJ=4 for i = 1:2^NJ-1 struct(i,:) = fliplr(dec2bin(i,NJ)); end struct = 15×4 char array '1000' '0100' ...

environ 2 mois ago | 0

Answered

How can I justify my matrices?

I find this form using Live Editor preferable to pretty. syms t1 t2 t3 d3 a2 J11 = [-cos(t1)*(d3*cos(t2+t3) + a2*cos(t2)), sin...

How can I justify my matrices?

I find this form using Live Editor preferable to pretty. syms t1 t2 t3 d3 a2 J11 = [-cos(t1)*(d3*cos(t2+t3) + a2*cos(t2)), sin...

environ 2 mois ago | 0

Answered

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 ...

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 2 mois ago | 0

Answered

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...

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 2 mois ago | 0

| accepted

Answered

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...

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 2 mois ago | 0

Answered

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 ...

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 2 mois ago | 0

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 2 mois ago | 0

Answered

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 = ...

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 2 mois ago | 1

| accepted

Answered

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...

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...

2 mois ago | 0

| accepted

Answered

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...

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...

2 mois ago | 0

Answered

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+...

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+...

2 mois ago | 0

| accepted

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...

3 mois ago | 1 answer | 0

Answered

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)...

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)...

3 mois ago | 0

| accepted

Answered

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...

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...

3 mois ago | 0

Answered

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...

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...

3 mois ago | 0

Answered

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...

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...

3 mois ago | 1

| accepted

Answered

computing vectors with string and numbers (easy question)

>> S = ["joe" "april" "andrea" "joe" "andrea"] S = 1×5 string array "joe" "april" "andrea" "joe" "andrea" ...

computing vectors with string and numbers (easy question)

>> S = ["joe" "april" "andrea" "joe" "andrea"] S = 1×5 string array "joe" "april" "andrea" "joe" "andrea" ...

3 mois ago | 0

Answered

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 ...

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 ...

3 mois ago | 0

Answered

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 ...

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 ...

3 mois ago | 0

| accepted

Answered

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...

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...

4 mois ago | 1

Answered

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...

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...

4 mois ago | 0

Answered

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','...

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','...

4 mois ago | 0

| accepted