Answered

Add columns to excel file

@Truc, It seems to me far easier to add the missing leads in Excel. The attached Excel workbook has columns added for leads III...

Add columns to excel file

@Truc, It seems to me far easier to add the missing leads in Excel. The attached Excel workbook has columns added for leads III...

2 months ago | 0

Answered

I can't figure out how to write equations of motion into Matlab.

@Alejandro Nava, Please read the examples in ode45() help pages carefully, They are very helpful. You have two angular velocit...

I can't figure out how to write equations of motion into Matlab.

@Alejandro Nava, Please read the examples in ode45() help pages carefully, They are very helpful. You have two angular velocit...

2 months ago | 1

| accepted

Answered

The Newton Raphson Method

@Bruce, It appears that your x is a 2-coulmn array where column1 = theta, column 2=phi. I assume you have a function pendulum(...

The Newton Raphson Method

@Bruce, It appears that your x is a 2-coulmn array where column1 = theta, column 2=phi. I assume you have a function pendulum(...

2 months ago | 0

Answered

I'd like to know how to make histogram with matlab raw data file.

@HYUK BIN KWON, I recommend that you read the help for load and for importdata, and try the examples provided. histogram(x) do...

I'd like to know how to make histogram with matlab raw data file.

@HYUK BIN KWON, I recommend that you read the help for load and for importdata, and try the examples provided. histogram(x) do...

2 months ago | 0

Answered

Display divergence of trajectories

@Jambalya, PLease attach code as .m files instead of attaching screenshots of code. You say "after 1000 interations". I am no...

Display divergence of trajectories

@Jambalya, PLease attach code as .m files instead of attaching screenshots of code. You say "after 1000 interations". I am no...

2 months ago | 0

Answered

Problem using biquad filter object

@Vincent St-Pierre, I'm not sure why your code does not work, but a simple 4th order Butterworth works fine. See code below. ...

Problem using biquad filter object

@Vincent St-Pierre, I'm not sure why your code does not work, but a simple 4th order Butterworth works fine. See code below. ...

2 months ago | 0

| accepted

Answered

How do I compare two simulation files?

@Ali AlMuslih, Here is an example of what I mean. I am attaching two files of simulated data, with 5 records , plus a column f...

How do I compare two simulation files?

@Ali AlMuslih, Here is an example of what I mean. I am attaching two files of simulated data, with 5 records , plus a column f...

2 months ago | 0

Answered

how to plot bifurcation graph

@shiv gaur, I do not understand what you are bdoing with a(), b(), and c() inside the main loop (the loop "for j=2:Nt+1, ..., e...

how to plot bifurcation graph

@shiv gaur, I do not understand what you are bdoing with a(), b(), and c() inside the main loop (the loop "for j=2:Nt+1, ..., e...

2 months ago | 0

Answered

How to create a random n matrix with out any conditions

@Hajar Alshaikh, There is no way to create random numbers that are truly "without any condition". You can create random number...

How to create a random n matrix with out any conditions

@Hajar Alshaikh, There is no way to create random numbers that are truly "without any condition". You can create random number...

2 months ago | 0

| accepted

Answered

Interpolate consecutive values of a single array

@Luca Castrogiovanni, I assume that the values in beta are not a simple sequence such as beta=1:100. If that were tru, this wo...

Interpolate consecutive values of a single array

@Luca Castrogiovanni, I assume that the values in beta are not a simple sequence such as beta=1:100. If that were tru, this wo...

2 months ago | 1

| accepted

Answered

What factors influence the result of the optimization problem?

@Behrooz Daneshian, Usually a model makeas a specific prediciton, and the difference between the model prediction and the exper...

What factors influence the result of the optimization problem?

@Behrooz Daneshian, Usually a model makeas a specific prediciton, and the difference between the model prediction and the exper...

2 months ago | 0

Answered

How to take the average every 4 data points?

@민수, I assume that you want a function that returns the average of points 1-4, then the average of points 5-8, then the average...

How to take the average every 4 data points?

@민수, I assume that you want a function that returns the average of points 1-4, then the average of points 5-8, then the average...

3 months ago | 2

Answered

I am looking into how to create a function that would calculate the first derivative of a data set using the finite difference methods

@Sarah Elena Aiko Johnson, You have posted images which are screenshots of your code. It is more helpful if you cite and paste ...

I am looking into how to create a function that would calculate the first derivative of a data set using the finite difference methods

@Sarah Elena Aiko Johnson, You have posted images which are screenshots of your code. It is more helpful if you cite and paste ...

3 months ago | 0

Answered

How to Plot the Trajectory of points on a bendRightAngle when Rotated 90 degrees

@Steven Thompson, Matlab can define a polygon. It could be convenient for your work. The only possible disadvantage is that a p...

How to Plot the Trajectory of points on a bendRightAngle when Rotated 90 degrees

@Steven Thompson, Matlab can define a polygon. It could be convenient for your work. The only possible disadvantage is that a p...

3 months ago | 1

Answered

How to Plot the Trajectory of points on a bendRightAngle when Rotated 90 degrees

You can define a nx2 array of points on the sofa S=[0,0;1,0;2,0;3,0;3,2;2,2;2,1;1,1;0,1;0,0]; And plot it plot(S(:,1),S...

How to Plot the Trajectory of points on a bendRightAngle when Rotated 90 degrees

You can define a nx2 array of points on the sofa S=[0,0;1,0;2,0;3,0;3,2;2,2;2,1;1,1;0,1;0,0]; And plot it plot(S(:,1),S...

3 months ago | 0

Answered

difference between "geodetic2aer" and "azimuth" function

@MatG, azimuth, by default, assumes the Earth is a sphere. geodetic2aer() ias using wgs84 spheroid, in your usage. If you tell ...

difference between "geodetic2aer" and "azimuth" function

@MatG, azimuth, by default, assumes the Earth is a sphere. geodetic2aer() ias using wgs84 spheroid, in your usage. If you tell ...

3 months ago | 1

Answered

How do I plot a bifurcation diagram with known dynamical equations of motion (> 3 dimension)?

@Rebeka, Let's suppose that y is 1x5 and that the parameter is A, as in your diagram. Let's also assume that the equaitons of ...

How do I plot a bifurcation diagram with known dynamical equations of motion (> 3 dimension)?

@Rebeka, Let's suppose that y is 1x5 and that the parameter is A, as in your diagram. Let's also assume that the equaitons of ...

3 months ago | 0

Answered

Call on function that takes in 2 variables multiple times

@Spacestudent112233, You can write a funciton that returns values whose size varies as the size of the inputs vary. I am not su...

Call on function that takes in 2 variables multiple times

@Spacestudent112233, You can write a funciton that returns values whose size varies as the size of the inputs vary. I am not su...

3 months ago | 1

Answered

Error using Spherical harmonics: Array dimensions must match for binary array op.

@Jamie Al, [edit: correct spelling errors] The error is because Ylm has size 61x121, and p0 has size 128x128x128. Therefore y...

Error using Spherical harmonics: Array dimensions must match for binary array op.

@Jamie Al, [edit: correct spelling errors] The error is because Ylm has size 61x121, and p0 has size 128x128x128. Therefore y...

3 months ago | 0

Answered

z transfer function evaluates to inaccurate value near z=1

@Ashish Panpalia, The function is tricky, as z approaches 1, since the numerator and denominator both tend toward zero. Why d...

z transfer function evaluates to inaccurate value near z=1

@Ashish Panpalia, The function is tricky, as z approaches 1, since the numerator and denominator both tend toward zero. Why d...

3 months ago | 0

Answered

three phase three winding transformer Leakage indcutance

@omsuraj gutti, that is not a Matlab question. I recommend you try a different site.

three phase three winding transformer Leakage indcutance

@omsuraj gutti, that is not a Matlab question. I recommend you try a different site.

3 months ago | 0

Answered

two signals with different frequencies to play at the same time without audio clipping

@F, I see that you are starting from A440, divividing by 2 to go down an octave, then using the circle of fifths with equal tem...

two signals with different frequencies to play at the same time without audio clipping

@F, I see that you are starting from A440, divividing by 2 to go down an octave, then using the circle of fifths with equal tem...

3 months ago | 0

| accepted

Answered

How to create meshgrid for unequal metrix.

@Jigar, The answer below shows how to create a grid that is non-uniform. The figures in the answer show how it worked. https:...

How to create meshgrid for unequal metrix.

@Jigar, The answer below shows how to create a grid that is non-uniform. The figures in the answer show how it worked. https:...

3 months ago | 0

| accepted

Answered

Interpreting Phase Bode Plot from Empirical Transfer Function

@Perry, great quesiton. Could you post a file with the experimental data a_z and F_t, which you used in the claculaitons above?...

Interpreting Phase Bode Plot from Empirical Transfer Function

@Perry, great quesiton. Could you post a file with the experimental data a_z and F_t, which you used in the claculaitons above?...

3 months ago | 0

| accepted

Answered

how to generate random number in a rectangle like this?

@Daniel Niu, I will assume that there are 5 equally likely options, and that for each option, you want to pick a random point in...

how to generate random number in a rectangle like this?

@Daniel Niu, I will assume that there are 5 equally likely options, and that for each option, you want to pick a random point in...

3 months ago | 0

| accepted

Answered

finding PM and GM for a system

@Cait, Your results look reasonable to me. % Part 1 - plot nyquist plot for K=15 G = tf([900],conv([1 10],[1 4 4])); figure(...

finding PM and GM for a system

@Cait, Your results look reasonable to me. % Part 1 - plot nyquist plot for K=15 G = tf([900],conv([1 10],[1 4 4])); figure(...

3 months ago | 1

| accepted

Answered

how does matlab simulate electric field

@abdullah, Matlab does not simulate the electric field. The user does, by writing code that implements the standard equations...

how does matlab simulate electric field

@abdullah, Matlab does not simulate the electric field. The user does, by writing code that implements the standard equations...

3 months ago | 0

| accepted

Answered

Can anyone help me calculating the average covariance of return?

@Silvia Grasso, [Edit: change the name of the initial matrix; it should not be Fcvc, it should be S. Add code to construct Fcv...

Can anyone help me calculating the average covariance of return?

@Silvia Grasso, [Edit: change the name of the initial matrix; it should not be Fcvc, it should be S. Add code to construct Fcv...

3 months ago | 0

Answered

How do isosurface and isocaps affect the size of stlwrite's output?

@Simone Cotta Ramusino, When you say "I get a 116.8 mm STL" and "this closed my volume and leaves the size to 116.8 mm", how ex...

How do isosurface and isocaps affect the size of stlwrite's output?

@Simone Cotta Ramusino, When you say "I get a 116.8 mm STL" and "this closed my volume and leaves the size to 116.8 mm", how ex...

3 months ago | 0

Answered

using chi2gof to determine sample representativeness

@Khalil EL HACHEM, Your code (below) does not work because chi2gof expects a vector x containing the observed values of the val...

using chi2gof to determine sample representativeness

@Khalil EL HACHEM, Your code (below) does not work because chi2gof expects a vector x containing the observed values of the val...

3 months ago | 0