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Egon Geerardyn


Vrije Universiteit Brussel

Active since 2011

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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

13 years ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

13 years ago

Solved


Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

13 years ago

Solved


How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

13 years ago

Solved


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 ...

13 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

13 years ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

13 years ago

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

13 years ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

13 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

13 years ago

Answered
Nested for-loops too slow
You might want to work more on that code manually before implementing it like that. As the only thing that really matters is N, ...

14 years ago | 1

| accepted

Answered
Adaptive Filter for System Identification.
If you're trying to model a continuous time system, I'd recommend making your model for continuous time instead of discrete time...

14 years ago | 0

Answered
Image Background Removal
You can try vectorizing that code, but that will be most likely destroy any short-circuiting you have in there. Just by the top...

14 years ago | 0

| accepted

Answered
Can I install an earlier version of MATLAB on a system with a current version of MATLAB?
1) Saying your OS is 32 bit will most likely work. Most 32 bit software should work on a 64 bit OS (unless you are fiddling with...

14 years ago | 1

Answered
Grayscaled Images to RGB
If you just need red, green or blue, you can use the following code: I = im2double(imread('cameraman.tif')); %image in double...

14 years ago | 2

Answered
2nd order polynomial fitting with NaNs
Try indexing your data points to your non-NaN-points Let's just work on an example: %% just generating data x = 1:10; ...

14 years ago | 5

| accepted