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Fill a zeros matrix
The aim is to fill an array of all zeros given a numerical value and the index of row and columns for this value. 3 Inputs: ...

2 years ago

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Distance of the centroids of the balls
Given *n* balls of radius *r* and the vector *p (nx3)* with all position *(x,y,z)* of the balls, return the symmetric matrix *A ...

2 years ago

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Calculate compression ratio of engine
Calculate compression ratio of engine given compression volume of cylinder(Vc), piston stroke(s) and valve diameter(d)

2 years ago

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Extract one pixel vertical stripes from multiple images and concatenate them in a new image in Matlab
folder = ''; % pwd or C:\Users\etc or /usr/local/ or fullfile or https// or whatever position = 10; % column of pixels in pixel...

2 years ago | 0

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For over three dimensional data
How is my whole Uni requesting help like this? Surely there are some people who could help within already... Anyway, you should...

2 years ago | 0

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How can I remove double values in an array
"remove rows in C that has zero in the second column" so pretty much the array B but with the 2nd column values of A whenever th...

2 years ago | 0

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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

2 years ago

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Find similar sequences
Another problem inspired by a question on the <http://www.mathworks.com/matlabcentral/answers answers> forum. Given a matrix ...

2 years ago

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Rule of mixtures (composites) - upper bound
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

2 years ago

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how can I modify my code so that whenever my Y axis reaches 2.5E-6 it get constant, means no more variation with x axis.
For a question about a value or a plot, the code you shared is needelessly complicated, you could make it easier for the people ...

2 years ago | 0

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Convert String to Morse Code
Convert a given string to international <http://en.wikipedia.org/wiki/Morse_code Morse Code> * Strings will only have [A-z], ...

2 years ago

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How can I split the data in cells
countries = {'Finland','San Marino','Serbia','France','Germany','Spain','Ireland','Italy','United Kingdom','Bosnia and Herzego...

2 years ago | 0

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Find the stride of the longest skip sequence
We define a _skip sequence_ as a regularly-spaced list of integers such as might be generated by MATLAB's <http://www.mathworks....

2 years ago

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Largest Geometric Series
Extension of Ned Gulley's wonderful Problem 317. In a geometric series, ratio of adjacent elements is always a constant value. ...

2 years ago

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geometric progression
I've modified my <http://uk.mathworks.com/matlabcentral/cody/problems/2800-arithmetic-progression previous program> so that it n...

2 years ago

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Reverse the elements of an array
Reverse the order of elements in an array: eg: input X = [ 1 2 3 ; 4 5 6 ; 7 8 9 ] o...

2 years ago

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Mersenne Primes vs. All Primes
A Mersenne prime (M) is a prime number of the form M = 2^p - 1, where p is another prime number. <https://www.mathworks.com/matl...

2 years ago

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Set some matrix elements to zero
First get the maximum of each *row*, and afterwards set all the other elements to zero. For example, this matrix: 1 2 3 ...

2 years ago

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Mysterious digits operation (easy)
What is this digit operation? 0 -> 0 1 -> 9 121 -> 9 44 -> 6 15 -> 5 1243 -> 7 ...

2 years ago

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plotting 12 graphs in one figure
So instead of plottin 12 figures each with mo_av, mo_max and mo_min you want 3 with 12 subplots? Would subplot(1,12,x) do? that ...

2 years ago | 0

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Given vertex points of two 2D polygons plotted in 3D space (x,y,z) how to determine if they intersect?
Unfortunately intersect only works for 2D polyshape objects, whereas for 3D you can use alphaShape and then a numerical solution...

2 years ago | 1

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reading files of folders with specific name styles
Adapt, test, correct, or simplify following code: Dir_with_Att = 'C:\Users\etc\put_your_directory_path_here\maybe_use_fullfile_...

2 years ago | 0

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Drop data from datatime by condition
Now I see that this was already answered, but the y-values might need to equal zero *for* a specific duration (or more), if I ge...

2 years ago | 1

Answered
How to determine muscle activation timing of an emg signal?
You can use Fieldtrip or something like below (code needs testing/cleaning) % emg = timeseries; % Fs = sampling fr...

2 years ago | 0

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Save .FIG in a specific folder
Use savefig to save a Matlab .fig savefig(FIGhandle, fullfile(destdirectory_FIG, 'name_of_FIG.fig')); You can also use saveas...

2 years ago | 0

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SatCom #1: Wavelength of an electomagnetic wave
*Satellite and Space Engineering - Problem #1* _This is the first of a series of problems looking at topics in satellite and ...

2 years ago

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arithmetic progression
I've written a program to generate the first few terms of <https://en.wikipedia.org/wiki/Arithmetic_progression arithmetic progr...

2 years ago

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IQpuzzler Challenge #2: Find all possible solutions on an empty 4-by-5 board with 5 pieces, rotating and flipping pieces allowed
We are playing a simplified version of IQpuzzler, with a smaller board of 4-by-5 spaces and just 5 pieces, as shown in the pictu...

2 years ago

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IQpuzzler Preparation #3: Detect isolated groups of zeros in a matrix
Return true if any isolated groups of zeros (shapes 1x1, 1x2, 2x1, 1x3, 3x1 or 2x2) are present on the board, with all verticall...

2 years ago

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Best path for IBKR with Matlab in 2022
When Trading Toolbox became Datafeed Toolbox in R2021a, Interactive Brokers toolbox "ibtws" (and some other stuff) was removed b...

2 years ago | 0