Plotting Velocity p m m m
This is a boundary value problem. You need to have the initial and boundary conditions to develop the velocity field required fo...

3 meses ago | 0

How to make binary file for each iteration in a loop?
I think, instead of the code creating "only the last file", it is overwritting the same file, so you end up with only one file. ...

3 meses ago | 0

Plotting the average line of a graph of a column imported from an excel
Not sure, where you are getting the error. I tried this % some random numbers x=rand(15808,1); % get the average by usi...

3 meses ago | 1

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Calculate volume of cylindric tank
Try this: function [tank_volume mA_points fuel_level mA_reading] = get_tank_volume(tank_diameter, tank_length, sensor_read) % ...

3 meses ago | 0

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Location of the "end" statement of the main function in a m. file?
If you have 'end' at the end of a file, then your functions become 'Nested functions'. The variables created inside the function...

3 meses ago | 1

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

3 meses ago

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Free passes for everyone!
_Simply return the name of the coolest numerical computation software ever_ *Extra reward* (get a _freepass_): Once a mont...

3 meses ago

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Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<https://i.imgur.com/jlZDHhq.png>> Image courtesy of <http://up...

3 meses ago

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Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...

3 meses ago

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Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<https://i.imgur.com/jlZDHhq.png>> ...

3 meses ago

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Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

3 meses ago

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Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

3 meses ago

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Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

3 meses ago

Output a video in MATLAB
Try this video = VideoWriter('Helix.avi','Uncompressed AVI'); open(video); h=figure(1); hold on; for t = 2:100001 % ...

3 meses ago | 0

Data extraction and indexing of array
If your data size changes throughout the structure then load them into a cell array and access each entry. nid = 5; xposdata =...

3 meses ago | 0

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Plotting a graph through the points
You mean fitting a curve or polynomial function through the points? Read: polyfit and you can modify the examples given there ...

3 meses ago | 0

Saving an imagesc file as .png without the white borders?
Try: print(I,filename,'-dpng'); By white border if you mean the background outside the figure, then you would have to export ...

3 meses ago | 0

Try this: https://www.mathworks.com/help/matlab/ref/fscanf.html Look at the examples given there you should be able to do it i...

3 meses ago | 0

Sizing array to add to a 3D array
You are changing the array size which is not how you do to store something. You are trying to store multi-dimensional array in a...

3 meses ago | 0

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Expression representation in an Iteration
Something like this ? w_k(nx) = 0; w_k_n(n_iter) = 0; for i=1:nx w_k_n(1) = w_k(i); for j=1:n_iter ...

3 meses ago | 0

Identify first and last indicies of numbers in an array containing NaN's
Try this: % Instead of diff, just loop through the indices to see the order and group them your_nan_indices = [2, 3, 4, 5, 9...

3 meses ago | 0

Plotting a field from a struct inside a struct
Try this: nBlobs = numel(BB); h = figure; clf; hold on; for i = 1:nBlobs x = i; temp = BB(i).blob; temp_s...

3 meses ago | 1

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Replace values in grid data (3D) to NaN, like another (3D) have NaN
I don't know if I understood your question properly, but here goes: If you have NaN values in SST matrix and would like to repl...

3 meses ago | 1

Help storing values for Ma and Cd so I can create a plot for them.
The problem is inside the for loop. Change this V = sqrt((Vx(n-1))^2 + (Vy(n-1))^2); %V = velocity [ft/s] Ma = V/c; % Ma num...

3 meses ago | 0

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Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...

3 meses ago

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Symmetry of vector
Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] ...

3 meses ago

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Create an n-by-n null matrix and fill with ones certain positions
The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

3 meses ago

Averaging subsets of a large dataset
It can be achieved by getting the indices of unique values for the latitude and longitude once you sort the matrix based on them...

3 meses ago | 1

Different Scales on same plot
May be give this a try: z=1:2:100; y=log(z); % Dummy log profile h=figure(1); h.Color=[1 1 1]; subplot(1,5,1) p1...

3 meses ago | 1

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

3 meses ago