Answered
Using sample code but returning a blank plot
You create a label and a title for a plot, but at no point do you feed it actual data to plot. Why would it do anything but prod...

ongeveer een jaar ago | 0

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Create a Slanted Linspace Matrix
If you have the signal processing toolbox, the buffer command will do exactly what you want. If not, something like x = linsp...

ongeveer een jaar ago | 0

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log ticks on Y-axis
set(gca, 'YScale', 'log') Is this what you mean?

ongeveer een jaar ago | 0

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error message how to solve !?
The error message is exactly what it says. You defined a function, which is not defined if one of your inputs is a function hand...

ongeveer een jaar ago | 0

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MATLAB isn't working to generate figures
Use hold on and hold off when generating figures. I've not used imshow before, but I'll guess that each time you generate a figu...

ongeveer een jaar ago | 0

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How to add a NaN row at the beginning columns of a table?
for jj = 1:5 A(:,jj) = [NaN([jj 1]); B(1:end-jj)] A(T.id(1:end) ~= [NaN([jj 1]); T.id(1:end-jj)], jj) = NaN; end I h...

ongeveer een jaar ago | 1

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Answered
signal to noise ratio (SNR)
According to the documentation, "r = snr(x,y) returns the signal-to-noise ratio (SNR) in decibels of a signal, x, by computing ...

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Answered
How can I get archived documentation for a R2012b release?
As per the other answer, 2012b doesn't have easily accessed documentation. I have found, however, the 2012b release notes in thi...

ongeveer een jaar ago | 0

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How to Integrate ?
Wolfram alpha is useful here to show you what can be done. If you click that link you'll see that I asked it to do which is ...

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Min and max value of many results
Good news! Matlab has built in min and max commands. So it's pretty straightforward to define them and store them in a vector: ...

ongeveer een jaar ago | 1

Question

Is it possible to include LaTeX expressions as text in my code?
I have a piece of code, where some of the variables can have their values chosen by me as and when I want. The values have very ...

ongeveer een jaar ago | 2 answers | 0

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Answered
What is the difference between matlab download R2020a and R2020b?
Here are the release notes for 2020b. There likely isn't much to change for most people, when I updated from 2020a to 2020b I di...

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Answered
Index in position 1 is invalid. Array indices must be positive integers or logical values. (Slution of equation of motion with runge kutta 4)
t(1), q(1) and dqdt(1) are all zero. Matlab indexing starts at 1, so when you assign k_11 = y1_2nd(t(i),q(i),dqdt(i)) it trie...

ongeveer een jaar ago | 0

Answered
I want the graph of the function only show the part where x>0
You want xlim. Give it one limit and it can calculate the other, or use xlim(0, length(y)).

ongeveer een jaar ago | 1

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max and min row from an array
The built in min and max commands have the ability to return the index of the largest and smallest values in an array. The docum...

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How to change dot's place in fractional number
Multiply by 100? x1 = 0.25; x2 = x1 * 100; disp(x2) 25

ongeveer een jaar ago | 1

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Question

How do I find out what specifically is causing the error "Matrix is close to singular or badly scaled" in the sgolay function?
I'm using the sgolay function from the Signal Processing toolbox to calculate some derivatives. The function is inside a loop as...

ongeveer een jaar ago | 1 answer | 0

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Plot a graph with linspace
You can't get that exact plot with linspace. I've managed to get it by using t = [0 1 1 2 3]; u = [1 1 0 0 0]; plot(t, u, 'k...

ongeveer een jaar ago | 0

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Answered
Finding points inbetween the values of my arrays.
If I understand your question, you want the interp1 command. You can choose how many target points to create, so make the lines ...

ongeveer een jaar ago | 0

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Answered
Curve Fitting for a function with 3 fitting parameters.
Bjorn's method will work. I'm just offering a second option, from the file exchange: https://uk.mathworks.com/matlabcentral/fil...

ongeveer een jaar ago | 0

Solved

Find the Pattern 4

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Solved

Find the Pattern 3

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Solved

Find the Pattern 2

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Solved

Find the Pattern 1

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Solved

Convert radians to degrees
Given input in radians, output to degrees

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Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

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Calculate the volume of the football

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Answered
How to make a graph of an equation if part of it is an array?
You're right, the right side of line 10 has the same size as r (which itself has the same size as t), and you're trying to assig...

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Solved

Find Logic 3

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Solved

Find Logic 6

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