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plotting number bigger than double realmax
One option would be to plot the base 10 logarithms instead. .

5 years ago | 0

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how can i solve this system on matlab?
A different approach — syms L v x1 x2 x3 y1 y2 y3 sys = [(v+L ==1) (0.25==x1*L + y1*v) (0.45 == x2*L +y2*v...

5 years ago | 1

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How do I plot two distributions on top of each other?
To plot an additional distribution on the same axes, use the hold function. For the distribution itself, use the pdf function w...

5 years ago | 0

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How do I calculate a logarithm of a variable base?
The general approach is: So: a = 64 log(a)/log(2) 2^(log(a)/log(2)) See the Wikipedia article on List of lo...

5 years ago | 0

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how do i get the average line graph
I do not have your data, however since they all have the same number of elements as ‘time’ and so can be assumed to be equal len...

5 years ago | 0

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stft plot doesn't match FFT results
If the frequencies are the same in both plots, the only difference is that the STFT plot spans -125 Hz to +125 Hz. The peaks ar...

5 years ago | 0

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system unstable although its poles are negative values
You nare not giving the isstable function the correct input. Try this instead — rs=0.84; Vin=40; Vfd=0; rL=.695; C=46.27e-6...

5 years ago | 0

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How to fit multiple peaks/dips
‘Thank you for your response. I would like to smooth the curve so that I get only one peak instead of mutiple smaller peaks. As ...

5 years ago | 0

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Plotting a stem plot of a Fourier series
Supply the correct values for ‘f0’, ‘w’ and ‘t’, and it works — % Plot amplitude vs frequencey f0 = 1; w = 2*pi*f0; n = ...

5 years ago | 0

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plotting a grid with red gridlines and where cells have different colors
One approach — N = 5; figure plot([1;1]*(1:N), (ones(N,1)*[0 N]).', '-r') hold on plot((ones(N,1)*[0 N]).', [1;1]*(1:N),...

5 years ago | 1

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How can I use solution of an equation as y-limit in an integral2 calculation?
Try this instead — syms x y f(x,y) = (x.^2+y.^2); g = x+y==10; ymax=solve(g,y) integr=int(int(f,x,0,10),y,0,ymax) Just ca...

5 years ago | 0

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How do I run an array through a loop and store the results?
Subscript ‘x’ in each call to it to use each element as a scalar, then calculate the sum at the end — k=1; x=linspace(0,(pi/2...

5 years ago | 0

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Polar plot using excel data
The polar and polarplot functions require the angles to be in radians. So using degrees requires the deg2rad function — ang...

5 years ago | 0

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find minimal difference for vector (Optimalisation algorithm)
In the Optimization Toolbox, one option is the lsqcurvefit function. To use any of the others (or any of the Global Optimizat...

5 years ago | 0

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Is there a two-dimensional sinc interpolation software?
One-dimensional sinc interplation is described in Ideal Bandlimited Interpolation. It may be possible to adapt it to a 2D prob...

5 years ago | 0

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Bandwidth returns inf with discrete time transfer function
The -3 dB frequency is straightforward to calculate — alpha1=0.9; ts = 0.1; z = tf('z',ts); H = ((1-alpha1)/2)*(1-z)/(1-a...

5 years ago | 1

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Trying to convert cartesian coordinates to polar coordinates
‘I am concerned about the random dips with the small valleys like mass B at about 1 second and mass A at 4 seconds. Are those di...

5 years ago | 0

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Issues with ode45
There are two problems (and one suggestion to improve its efficiency): First, ‘dymanics’ should only present the independent a...

5 years ago | 0

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tf is not working .
License and install the Control System Toolbox and the code should work. R=470; L=100E-3; C=0.22E-6; L = 0.1000; C = 2.20...

5 years ago | 0

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I want to find transfer function from given poles and zeros
One approach — K = 1; % Insert Correct Value p1 = -3.02E4 + 2.52E4j; p2 = conj(...

5 years ago | 2

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Is there a way for Densifying data towards the ends
I would use a weighting vector to weight the parts to be emphasized more heavily. One way to do that could be: N = 50; ...

5 years ago | 0

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Estimate Parameters for System of ODEs with given Data using a Genetic Algorithm (COVID-19-Model)
You found the code I was intending to direct you to when I just now saw this post. (My apologies for not seeing it earlier. Th...

5 years ago | 0

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Error when inputting step function
The code is missing a setp (pun intended) — m2 = 350; m1 = 10; Ks = 10000; Kw = 500000; b = 1000; Num = Kw* [b Ks]; De...

5 years ago | 1

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How to combine the matrices ?
One approach — A = rand(293,13); B = rand(392,13); C = rand(480,13); ABC = cat(1,A,B,C) .

5 years ago | 0

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The transfer function of a small position Sensor
If you actually want the transfer function, use the System Identification Toolbox functions — Displacement_d_mm = [0, 0.08, 0....

5 years ago | 0

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rotating the plot axis
I am not certain what you intend by ‘rotate the axis’. It is a(4x4) matrix, so if you want to plot the transpose, just plot the...

5 years ago | 0

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Help Using Solve Function
Try something like this — Gamma=1.4 Mu_2=MuM(2.2, Gamma,10); M_2 = FindM_2(Mu_2,Gamma) function [M_2]=FindM_2(Mu_2,Gamm...

5 years ago | 0

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How to make syms functions have specific values
One approach — syms c F(x) x dF = diff(F) F(x) = dsolve(dF == c, F(0)==0) c = solve(diff(F)==1,c) % ...

5 years ago | 0

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Plot specific rows with an defined offset
One approach — f = 0:49; Spectra = rand(10, 50); Scores = randn(10,1); Offset = Scores; Offset((Offset>-0.5) & (Offset<0...

5 years ago | 0

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How to solve surface plot viewing issue?
Using an axes call could make the axis limits a bit more obvious, and to call attention to a specific point, one option is to d...

5 years ago | 0