Answered
Bifurcation Diagram will not graph
Plot the points — figure; ax(1) = axes; hold on xlabel ('k'); ylabel ('C'); xlim([-2 2]); ylim(...

5 years ago | 0

Answered
How do ı convert rad/sample to Hz?
Note that radians/sample is equivalent to the Nyquist frequency, one-half of the sampling frequency. In fvtool, click on the...

5 years ago | 1

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Answered
How to filter a signal with a transfer function?
The easiest approach is to first let the Control System Toolbox solve it, then realise it as a discrete filter using the numerat...

5 years ago | 0

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Answered
Vertical and horizontal line standard equations
The problem is that the axes are set to be limited to [0 1] while the lines are all negative. (The second line was originally c...

5 years ago | 0

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Answered
Matlab contour plot with color
Use the contourf function, and choose the colormap that most closely represents what you want (for shades-of-gray, the gray colo...

5 years ago | 0

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plot 3D function
I have no idea what ‘plotn’ is. That aside, ‘X’, ‘Y’, and ‘u’ are all (40x40x40) matrices. To plot them as a mesh for exampl...

5 years ago | 0

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Answered
problem with the function y
Define it as a function. (This has been possible since R2012a.) syms x T(x) = taylor (asinh (x), x, 'Order' ,16); figure...

5 years ago | 1

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Answered
Issues with my Bifurcation Diagram
One problem is that ‘ax(1)’ does not have anything assigned to it, at least in the posted code. Fixing that makes the axes magi...

5 years ago | 0

Answered
read Barcode is showing error- Undefined function or variable 'readBarcode'.
According to the documentation, the readBarcode function was introduced in R2020a. The version posted is R2019a, so to use it...

5 years ago | 2

Answered
Quiver is not working about drawing vector field.
It appears to work correctly here — x = linspace(-2, 2, 40); y = linspace(-2, 2, 40); [X,Y] = meshgrid(x,y); Z = (x.^2 + Y....

5 years ago | 0

Answered
Invalid expression on using log(t) and [exp(t) * cos(t)] functions
There are too many parentheses in ‘V’. Also, it is necessary to use element-wise operations in the vector calculations. See ...

5 years ago | 0

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Answered
scatterplot with the datetime
One approach — Uz = unzip('https://www.mathworks.com/matlabcentral/answers/uploaded_files/630240/household_power_consumption_2...

5 years ago | 2

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Answered
X-ray diffraction (XRD) Base line removal
See if the detrend function will do what you want. (This appears to be a relatively straightforward application of it.) More ...

5 years ago | 7

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Answered
How do I detect the desired peaks
‘There are multiple data points between the peaks, so finding two maximas would not work.’ It would definitely help to have a...

5 years ago | 0

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Answered
Using datenum to calculate acceleration
I’m not certain that I understand in detail what you’re doing. Using datenum is likely the best option here. I experimented ...

5 years ago | 0

Answered
How to prevent readtable excluding rows with "NA"?
Try this — C1 = readcell('https://www.mathworks.com/matlabcentral/answers/uploaded_files/629630/exampletxt.txt'); VN = C1(1,:...

5 years ago | 0

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Answered
inverse of tan at 90 degree
A more robust approach would be atan2d, since it provides a 4-quadrant angle. y2 = 20; y1 = 10; x2 = 42; x1 = 42; The...

5 years ago | 0

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PLEASE I NEED YOUR ASSISTANCE
I am not exactly certain what you want. Try this — T1 = readtable('https://www.mathworks.com/matlabcentral/answers/uploaded...

5 years ago | 0

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Empty sym: 0-by-1
Exploring the function is often worthwhile. It apparently has a real root at about -0.45, so share that information with vpasol...

5 years ago | 0

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Answered
How to recode the strings() function?
The string data type is new to R2016b. A possible workaround could be the cellstr function (introduced prior to R2006a). E...

5 years ago | 1

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How to preserve apostrophe sign in a string in Matlab?
Enclose the apostrophes in apostrophes — x = 'La drôle de tête du râteau est posée contre le mûr près de l''''abîme'; sprintf...

5 years ago | 0

Answered
How do I plot 3d graph ?
Interpolate! N = 50; xv = linspace(min(x), max(x), N); yv = linspace(min(y),m max(y), N); [Xm,Ym] = ndgrid(xv, yv); Zm = ...

5 years ago | 0

Answered
Vectors -Must- be the same length
Change the for loop to: for it=2:itmax dSodt(it)=-r*S(it-1)*I(it-1); S(it)=S(it-1)+dSodt(it)*dt; dRodt(it)=a*I(...

5 years ago | 0

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Transfer character string from sprintf to subtitle
To print a single ‘\’ using sprintf (and the others, like fprintf and compose), use a double backslant ‘\\’. So: i = 1; Q ...

5 years ago | 0

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Answered
How to approximate a staircase signal into a linear signal?
There are several options, the most obvious being lowpass filtering. One straightforward way to do that iws with the movmean ...

5 years ago | 0

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How to find the time of the max peak in a signal?
The easiest way is to have findpeaks return the indices in the second output — t = ...; ...

5 years ago | 1

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Answered
Simple question, how can I plot this tan x function?
Perhaps — x = @(y) tan(y) figure fplot(x, [-pi pi]) grid xticks([-pi -pi/2 0 pi/2 pi]) set(gca, 'XTickLabel',{'$-\pi$',...

5 years ago | 1

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Answered
Finding x and y values from certain values of y = 0, x = 0, ymax and xmax from a plot
One option is to model it as described in how to find ascending and descending of hysteresis loop?, then use the model result to...

5 years ago | 0

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Answered
Synchronize sensor data from multiple sensors
If the first columns are not actulal times, as would otherwise be used with datetime or duration, just interpolate. Consideri...

5 years ago | 1

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Answered
Why is command window printing out all the code?
The echo function may have become activated somehow. See if: echo off solves it. .

5 years ago | 0

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