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Accept 5 answers given by other contributors
Awarded to Jeff on 18 Nov 2017
Feeds
Question
Rayleigh's Identity and the Fourier coefficients
Attached is my m file that computes the Fourier coefficients for a function that is referred to as the "Friedlander waveform". ...
6 years ago | 0 answers | 0
0
answersQuestion
GIBBS overshoot behavior difference
There is plenty of literature indicating that the overshoot at a jump discontinuity from the GIBBS effect is 1.08949. However...
7 years ago | 1 answer | 0
1
answerQuestion
Saving workspace variables iteratively
I would like to iteratively save my workspace variables to disk upon completion of a FOR loop. For example, for the 1st iterati...
7 years ago | 1 answer | 0
1
answerQuestion
Square wave function Mean Squared Error differing by a factor of 2?
Below are 2 scripts that compute Mean Squared Error, E, of a square wave with the jump discontinuities occurring @ -Tau/2 & +Tau...
7 years ago | 1 answer | 0
1
answerQuestion
GIBBS effect at discontinuities for different functions
The Fourier series of waveforms with discontinuties experiences an overshoot near the discontinuity known as the "Gibbs phenomen...
7 years ago | 0 answers | 0
0
answersQuestion
GIBBS phenomenon & sum of squared differences
I obtained the attached m-file from MATLAB Central that demonstrates GIBBS phenomenon. I modified the code to track the sum of ...
7 years ago | 1 answer | 0
1
answerQuestion
symmetric vs asymmetric Fourier series
I have experimental data that in some respect can be modelled by an asymmetric triangle function (1-t) for 0<=t<=1. It is not q...
7 years ago | 1 answer | 0
1
answerQuestion
Why are the results to the fit command getting cleared from the workspace?
I have attached 2 m-files. The 1st one calls on the 2nd one to generate a Fourier series curve fit. When I run it it terminate...
7 years ago | 1 answer | 0
1
answerQuestion
My question is not visible on the Answer webpage
I posted a question 3 hours ago titled "GIBBS phenomenon & sum of squared differences". I went to check the Answer webpage to s...
7 years ago | 1 answer | 0
1
answerOvershoot of Fourier series for y=1-t
I found an analytical solution to the Gibbs overshoot: https://statweb.stanford.edu/~candes/acm126a/Hw/hw2sol.pdf I also att...
7 years ago | 0
| accepted
Question
Overshoot of Fourier series for y=1-t
I have recently examined the overshoot of a Fourier series representation of the function 1-t. Included in the PDF file is a pl...
7 years ago | 1 answer | 0
1
answerUnimportable TAB delimited file
I found a computer with significantly more memory & was able to import the file. So solved.
7 years ago | 0
| accepted
Question
Unimportable TAB delimited file
I have a TAB delimited file which fails to import every time I try. I am not sure if my failure is due to the size of the file ...
7 years ago | 1 answer | 0
1
answerQuestion
Fourier series expansion using the Curve Fitting Tool
I have some very perplexing results I obtained using the Curve Fitting Tool which I am having difficulty interpreting and reconc...
7 years ago | 1 answer | 0
1
answerQuestion
state-space eigenvector matrix normalization
I am in a bit of a quagmire & seeking suggestions? I have utilized the eig(A) command to find the eigenvalues & eigenvectors ...
7 years ago | 1 answer | 0
1
answerQuestion
Null space vs eigenvectors
Below is a code I ran to compare the null space & the eigenvectors of matrix A. Please correct me if I am wrong, but I thought ...
7 years ago | 1 answer | 0
1
answerfundamental eigensolution matrix determinant
Again, the issue resides with the normalization of V. Below is a code I devised to denormalize each of the eigenvectors in V. ...
7 years ago | 0
Question
fundamental eigensolution matrix determinant
Assembling the eigensolutions of a system of differential equations into a matrix results in what some have coined as the "funda...
7 years ago | 3 answers | 0
3
answersreconciling zpk output?
I believe I found the source of the problem, but I do not know how to deal with it. It appears that the ZEROS of X0 & X1 are n...
7 years ago | 0
Question
Discrepancy in transfer functions
I have included in the .zip file a .slx model & the input data & parameters in the .mat file. You will need to import the conte...
7 years ago | 0 answers | 0
0
answersUsing the Ideal Translational Velocity Source
I believe I figured this out. I changed the input signal so that it is smooth at time = 0. If the initial velocity is somethin...
7 years ago | 0
| accepted
Question
Using the Ideal Translational Velocity Source
I have no problem prescribing an input force to a mass/spring system in SIMSCAPE. However, applying a prescribed displacement a...
7 years ago | 1 answer | 0
1
answerSIMULINK dynamic response versus root loci
I have since resolved this issue. It turned out that my feedback path was not correct. I have included the correct SIMSCAPE & ...
7 years ago | 0
| accepted
SIMULINK BODE plot yields no response
This was corrected by changing the SNAPSHOT time
7 years ago | 0
| accepted
Question
reconciling zpk output?
I have included a SIMSCAPE model of a 3 DOF system in the attached ZIP file along with the necessary input data. In the jpg sch...
7 years ago | 1 answer | 0
1
answerQuestion
Force Sensor port connections confusion
I have constructed 2 SIMSCAPE models of a 3 DOF system. One is with a force sensor connected in parallel with a 3 degree of fre...
7 years ago | 1 answer | 0
1
answerQuestion
SIMULINK BODE plot yields no response
Included in the ZIP file is a SIMULINK model of a 3 degree of freedom system along with the input data and appropriate gain valu...
7 years ago | 1 answer | 0
1
answerQuestion
Frequency response of 3 degree of freedom system
Included in the ZIP file is a SIMULINK model of a 3 degree of freedom system along with the input data and appropriate gain valu...
7 years ago | 0 answers | 0
0
answersQuestion
simulation time shortened with step size
I am reasonably new on SIMULINK and I am trying to configure the solver to have sufficient time resolution to analyze the high f...
7 years ago | 1 answer | 0
1
answerQuestion
SIMULINK dynamic response versus root loci
I am new to the SISO tool, but used it to compare, not design, the response of 2 systems I constructed in SIMULINK. I have incl...
7 years ago | 1 answer | 0
1
answer
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