Drishan Poovaya
MathWorks
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I am an intern at Mathworks. My responsibility is to provide the best support for applications like Image Processing, and Signal Processing. Disclaimer: Any articles /ideas/opinions here are my own and in no way reflect that of Mathworks
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Feeds
Resuelto
Calculate the mean of each half of a matrix
Given a matrix with an even number of columns, n, return a 1-by-2 row vector where the first element is the mean of all the elem...
7 días hace
Resuelto
Find Closest Constant
Given a number x, return the value that is closest to x from this list of constants: 0, 1, , e, , (also known as ). For exampl...
7 días hace
Resuelto
Matrix Quadrants
Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-ri...
7 días hace
Resuelto
Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
casi 2 años hace
Resuelto
Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...
casi 2 años hace
Resuelto
Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.
casi 2 años hace
Resuelto
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
casi 2 años hace
How to use optimization in matlab?
Hi, It appears you want to find the maximum area of a rectangle with sides A and B, such that A + B = Lt. This would assume tha...
más de 2 años hace | 0
| aceptada
Subplot for individual for loop angle
Hi, the reason the graph isn't being plotted the way you expect is because your nested for loop structure is incorrect for thi...
más de 2 años hace | 1
| aceptada
How do I display a figure from another section again?
Hi, Essentailly, you want to display a figure which you had previously created in a different section again. You can use the sa...
más de 2 años hace | 0
| aceptada
Surrounding elements in an array affect and change an element over a loop.
Hi, Essentially you want to check all elements in the neighbourhooud of a particualr element but you want the search to wrap a...
más de 2 años hace | 0
what is the mistake i am doing here? i have to plot the three equations f,f1,f2
Hi, It appears you are trying to plot symbolic functions. This is not what plot3 is designed to do, it can only plot numerical ...
más de 2 años hace | 0
Plot 2 Tangent Lines in a function
Hi Please have a look at the code snippet below. It calculates the tanget at points 1 and 5 and plots the tangents. Keep in min...
más de 2 años hace | 0
How to find the maximum of some variables ?
You can refer to the function below, it solves your issue function dispwithname(varargin) [~, idx] = max([varargin{:}]); disp...
más de 2 años hace | 0
Combining video files in matlab
You can use while loops with the "hasFrame" check to write each frame of each video to the new file. Below is an example with tw...
más de 2 años hace | 0
Multi- App/Class GUI with app designer
I understand that you essentially want to combine 3 .mlapp files into one GUI. Unfortunately this is not possible. Each mlapp fi...
más de 2 años hace | 0
| aceptada
How to extract HOG and EHD features from '.txt' files?
Hi, The first step would be to import the txt file into MATLAB. You can do so in 2 ways. Use the Import Data optiom in the va...
más de 2 años hace | 0
| aceptada
How can I show two points value in a wave?
A simple workaround is, first right click the scope output and select 'Print display to figure'. Now you can simply click on p...
más de 2 años hace | 0
Morse Decoder with Character Counter
Hi, First of all, there are a few errors with your userMorse variable. Every time you have typed "..--.-", which indicates a '-...
más de 2 años hace | 0
App Designer as Inputs to Separate Object Oriented Code
Hi, it is possible to do this without using app-designer. You can get this behaviour by using UIFigure components. In the link ...
más de 2 años hace | 0
Display both the figure and save the output in the function 'findchangepts'
Currently findchangepts does not support this feature. I have brought this issue to the notice of the concerned people and it mi...
más de 2 años hace | 1
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Creating multiple axis scales on one axis - Ex: fixed step, logarithmic, fixed step
It is possible to have multiple scales on one axis, but it is a little lenghty. Please have a look below t = tiledlayout(1,3,'T...
más de 2 años hace | 1
How to write function for panel in App Designer?
You can access the panel a button was present in using the Parent property. Firstly, give each panel an appropriate title in t...
más de 2 años hace | 0
3D Graph (bar3?) with two vectors and one matrix
As per my understanding, you will not get the type of output you want with bar3. Refer to the documentation of bar3 https://www...
más de 2 años hace | 0
Error Message: Undefined function, App Designer
The reason this error is occuring is that, while you have created both time and power variables, they are at the moment local to...
más de 2 años hace | 0
Lock axis for Rotate3D
It is not possible to lock specific axis for rotate3D. However there is a workaround using the rotate function, using which you ...
más de 2 años hace | 1
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Find the local and global maxima and minima
One option is to use ‘findpeaks’ in the Signal Processing Toolbox. It will give you the maximum (and indirectly the minimum) val...
más de 2 años hace | 1
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