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...
4 years ago
Solved
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
Solved
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
Solved
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
Solved
Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....
4 years ago
Solved
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
Solved
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
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...
4 years ago
Solved
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
Solved
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
Answered
Is there a way to obtain the indices of the training, validation and test datasets in NN pattern recognition?
You can see those indices in the ouput data of train command. [net,tr] = train(net,x,t); % net is trained network, tr in traini...
Is there a way to obtain the indices of the training, validation and test datasets in NN pattern recognition?
You can see those indices in the ouput data of train command. [net,tr] = train(net,x,t); % net is trained network, tr in traini...
4 years ago | 0
| accepted
Answered
What did I do wrong here?
In your function RK4 line 8 to 11, you have two inputs for f function while the f function has only one input value, thus "too m...
What did I do wrong here?
In your function RK4 line 8 to 11, you have two inputs for f function while the f function has only one input value, thus "too m...
4 years ago | 0
Answered
how to use reshape ?
try this: B = reshape(A,339,[]); % A is the original matrix, B is the reshaped matrix
how to use reshape ?
try this: B = reshape(A,339,[]); % A is the original matrix, B is the reshaped matrix
4 years ago | 0
| accepted
Answered
Extract a row from a 2D matrix if any of its element matches with elements in other 1D matrix
Try this: idx = []; for i = 1:size(A,1) if any(ismember(A(i,:),B)) idx = [idx i]; end end C = A(idx,:);
Extract a row from a 2D matrix if any of its element matches with elements in other 1D matrix
Try this: idx = []; for i = 1:size(A,1) if any(ismember(A(i,:),B)) idx = [idx i]; end end C = A(idx,:);
4 years ago | 0
Answered
How do I implement multi objective optimization using the default in-built 'particleswarm' function in Matlab ?
https://www.mathworks.com/matlabcentral/fileexchange/62074-multi-objective-particle-swarm-optimization-mopso All credits to the...
How do I implement multi objective optimization using the default in-built 'particleswarm' function in Matlab ?
https://www.mathworks.com/matlabcentral/fileexchange/62074-multi-objective-particle-swarm-optimization-mopso All credits to the...
4 years ago | 0
Submitted
2D Heat Transfer FEM
FEM script example for 2D heat problem using T3 element
4 years ago | 21 downloads |
Question
Does Matlab has an adaptive Neural Network (architecture and functions)?
In standard learning, we usually do multiple attempts to find the most optimum ANN architecture (nodes and layers) and functions...
4 years ago | 1 answer | 0
1
answerAnswered
How to solve mass spring damper over frequency (differential equation)?
Equation of motion is time-dependant equation. Perhaps what you mean is Response Spectrum (frequency-based response data)? This ...
How to solve mass spring damper over frequency (differential equation)?
Equation of motion is time-dependant equation. Perhaps what you mean is Response Spectrum (frequency-based response data)? This ...
4 years ago | 0
Answered
Writing an Optimization Problem
I am not sure why yours doesnt work, but it works if the functions are written in array form like this: clear fun = @(x) (x(1)...
Writing an Optimization Problem
I am not sure why yours doesnt work, but it works if the functions are written in array form like this: clear fun = @(x) (x(1)...
4 years ago | 1
Answered
exitFlag meaning in GA solver
As I know, good solution is when it converges, the change of few last iteration does not improves (exit flag 1, 3). Or when so...
exitFlag meaning in GA solver
As I know, good solution is when it converges, the change of few last iteration does not improves (exit flag 1, 3). Or when so...
4 years ago | 2
| accepted
Answered
Find indexs of minimum in 4-D matrix.
Maybe linear means the index ordered in from high dimension to one dimension. For example, for 2D matrix with 2 rows and 3 colum...
Find indexs of minimum in 4-D matrix.
Maybe linear means the index ordered in from high dimension to one dimension. For example, for 2D matrix with 2 rows and 3 colum...
4 years ago | 0
Answered
gaplotpareto not supported for this algorithm
Have you tried this advice? https://www.mathworks.com/matlabcentral/answers/63086-gaplotpareto-for-3-objective-functions
gaplotpareto not supported for this algorithm
Have you tried this advice? https://www.mathworks.com/matlabcentral/answers/63086-gaplotpareto-for-3-objective-functions
4 years ago | 0
| accepted
Question
Add new line in middle of line of a text file
I have a bug in my text file. There should be new line at this blue line: I have tried to code to fix this: subdir = 'TCLFil...
4 years ago | 1 answer | 0
1
answerAnswered
How to fix timestep in this code?
You can check your equation part by part to check whether your code or calculation is correct. For example, for n=2: Ve*dm = 22...
How to fix timestep in this code?
You can check your equation part by part to check whether your code or calculation is correct. For example, for n=2: Ve*dm = 22...
4 years ago | 0
Answered
How do I solve an eigenvector for the amplitude matrix 'A' mode
Are you trying to make eigendecomposition of mass & stiffness matrix? Try this: [U,Omega2] = eig(inv(M)*K); % Eigen decomp...
How do I solve an eigenvector for the amplitude matrix 'A' mode
Are you trying to make eigendecomposition of mass & stiffness matrix? Try this: [U,Omega2] = eig(inv(M)*K); % Eigen decomp...
4 years ago | 0
Answered
Finding Angle between 2 points
Is this what you mean? P1 = [10 210]; P2 = [140 210]; Z0 = [(P1(1)+P2(1))/2 225]; % Reference point, assuming it is in the m...
Finding Angle between 2 points
Is this what you mean? P1 = [10 210]; P2 = [140 210]; Z0 = [(P1(1)+P2(1))/2 225]; % Reference point, assuming it is in the m...
4 years ago | 0
Answered
Saving / Showing Value of Variables in Genetic Algorithms
This guy here give an example output function to obtain variable in each iteration on a pattern search optimization. Maybe it is...
Saving / Showing Value of Variables in Genetic Algorithms
This guy here give an example output function to obtain variable in each iteration on a pattern search optimization. Maybe it is...
4 years ago | 0
Answered
why points examined in Pattern Search exceed the lower or Upper bounds and is there any way to avoid this?
What is your initial point and initial mesh size? Perhaps these already exceeds your bounds. Edit: Hmm, what if you normalize ...
why points examined in Pattern Search exceed the lower or Upper bounds and is there any way to avoid this?
What is your initial point and initial mesh size? Perhaps these already exceeds your bounds. Edit: Hmm, what if you normalize ...
4 years ago | 0
| accepted