Answered
In Online Matlab under App menu, Signal Analyzer not working?
The Signal Analyzer app comes with a purchase of the Signal Processing Toolbox. Please review this short video: Signal Analysi...

4 years ago | 0

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Answered
Computer to boost MATLAB operation
As @Jan pointed out, it is very important that you run your profiler to find out where your time is being spent and focus on tho...

4 years ago | 2

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Answered
Parfor nested loop Table definition
>> can I at least parallelise the writing of the 4 xlsx tables to speed up the code I do not see how to do that easily without ...

4 years ago | 1

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Answered
How to obtain the first and second derivative of the "xt" function
You can use diff function as a crude way to take derivates. But, you should also know that diff introduces noise. Here is an art...

4 years ago | 0

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Computer to boost MATLAB operation
Where is your time being spent - in the nested loop, or in the last loop that is outside the nested loop? If, by "last loop", y...

4 years ago | 0

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Giving a moving point a chance to change path every step?
You should just run the script directly. You should not try to call selectPath from the command line.

4 years ago | 1

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Giving a moving point a chance to change path every step?
Not sure exactly what you want, but possibly this is getting close. The refactoring should make it easier to modify. % set rand...

4 years ago | 1

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Answered
Handling data cell array
Yes, regex is elegant. Here is a non-regex script. This algorithm allows the x,y,z to be in any order in each row of A. A = {'...

4 years ago | 1

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Matlab row subtraction of matrix
On the other hand, maybe you want to subtract row 2 from all the rows. In that case, you can do this. >> A A = 1 2 ...

4 years ago | 0

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Answered
Matlab row subtraction of matrix
I am taking a guess as to what you want. Would be nice if you gave a simple matrix, A, and showed the desired result. But here i...

4 years ago | 0

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Relation of Elements of matrix
B = 3; [r, ~] = ind2sub( size(A), find(A==B) ); z = A(sort(r),:); zu = unique(z(:))'

4 years ago | 0

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Matrix dimensions must agree.
As Jon pointed out, you can subtract two matrices if they are "the same size (same number of rows and columns)" It is also poss...

4 years ago | 0

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how do u make a new value that is the sum of two columns
A = [1 2 ;3 4; 5 6 ;7 8; 9 10; 11 12; 13 14; 15 16] A = 1 2 3 4 5 6 7 8 9 10 ...

4 years ago | 0

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Find common elements in matrix rows
Given a matrix, find all elements that exist in every row. For example, given A = 1 2 3 5 9 2 5 9 3 2 5 9 ...

4 years ago

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Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

4 years ago

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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...

4 years ago

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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

4 years ago

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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...

4 years ago

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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

4 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]; ...

4 years ago

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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

4 years ago

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Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<https://i.imgu...

4 years ago

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

4 years ago

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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.

4 years ago

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

4 years ago

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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

4 years ago

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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...

4 years ago

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Return area of square
Side of square=input=a Area=output=b

4 years ago

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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 ...

4 years ago

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Add two numbers
Given a and b, return the sum a+b in c.

4 years ago