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Question

How to create N+1 dimensional array by taking exterior product of 1st dimension of two N dimensional arrays?

I would like to efficiently create an N+1 dimensional array C, whose first 2 dimensions are the exterior product of the 1st dime...

11 months ago | 2 answers | 0

### 2

answersQuestion

Processing of NaN or Inf function evaluations by fminbnd

How are NaN or Inf function evaluations handled by fminbnd? Per https://www.mathworks.com/help/matlab/ref/fminbnd.html , the d...

1 year ago | 0 answers | 1

### 0

answersQuestion

MATLAB Mobile under BlackBerry Classic OS 10.3.2

Should the Android version of MATLAB Mobile work on a BlackBerry Classic running OS 10.3.2? Are there any issues? Is the (a) M...

5 years ago | 1 answer | 0

### 1

answerQuestion

rank and null of sparse matrix not allowed without using full

Consider the following, where A has the sparse matrix attribute. >> rank(A) Error using svd Use svds for sparse singu...

6 years ago | 1 answer | 0

### 1

answerINTLAB download for free,how?

INTLAB used to be free of charge. It is no longer free.

6 years ago | 0

Question

Killing a (mex) Function When It Doesn't Respond to Ctrl-C or Ctrl-Break Under WIN64

Is there a way to kill a (mex) function running in MATLAB and which doesn't respond to Ctrl-C or CTrl-Break, other than by killi...

6 years ago | 3 answers | 0

### 3

answersMatrix Inverse calculation problem.

If you have a matrix A, and want to calculate the inverse of it using MATLAB, then inv(A) is the inverse of A. If this is not s...

6 years ago | 0

Hi, I tried to use fmincon but I received the message. How I can overcome this problem?

If you provide reproducible code, i.e., all input data, options, etc., perhaps someone can offer more concrete help. As has b...

6 years ago | 1

Bachelor Thesis Help! Dealing with NaN when calculating absolute difference

I think this will give you the idea. You can fix it up to suit your needs. First of all, use isnan(y) to determine whether y...

6 years ago | 0

| accepted

Question

Accuracy of eig in support of complex step differentation: Derivative estimate accuracy degrades when step gets too small

Consider the uses of complex step differentiation to estimate the derivative of an eigenvalue of a real non-symmetric matrix, us...

6 years ago | 4 answers | 1

### 4

answersQuestion

First MATLAB Build (Directly) Supporting Left Eigenvector in eig?

Since at least R2014A, eig has the following option, which returns both left and right eigenvectors in one command, without reso...

6 years ago | 1 answer | 0

### 1

answerI have a 25by3 matrix and i want to remove randomly 10 rows (I have already completed this part). The problem is that i want the original matrix which is 25by3 to be 15by3 after removing 10 rows. Thats my question

I show you this just so that you 'll be aware of the very handy setdiff function. it might not be as fast executing as the prev...

6 years ago | 0

Function for Smoothing spline approximation

This was originally a comment, but no one has answered, so here is a partial answer. It would seem your challenge is the need...

6 years ago | 0

| accepted

Question

Plans for MATLAB to Run Natively on Cell Phones?

I am aware of MATLAB Mobile, but are there any plans which would allow MATLAB to run natively on any cell phones? It seems that...

6 years ago | 1 answer | 0

### 1

answerNumber of eigenvalues when using eigs

eigs does not always converge, even if maximum number of iterations is significantly increased and/or solution tolerance decreas...

6 years ago | 1

eigs function: incorrect eigenvectors

If you like your eig, you can keep your eig. No one will be forced to switch their eigenvalue/vector provider to eigs if they're...

6 years ago | 0

Question

Fastest Executing Square Matrix Cofactor Implementation? Fastest Adjoint Implementation Which Works for Singular Matrix?

I see several cofactor functions on file exchange. Can anyone point to the fastest executing cofactor implementation, for use on...

6 years ago | 0 answers | 0

### 0

answersQuestion

Hibernating MATLAB process (not WINDOWS itself) running natively under WINDOWS?

Is it possible under any current release of MATLAB, or planned under a forthcoming release of MATLAB (such as R2014A or R2014B) ...

7 years ago | 1 answer | 0

### 1

answerVec:: In Windows Version But Not in Linux?

Walter, thanks for that pointer. vec is a function in CVX, and also in the sedumi solver, which in included with CVX, as well a...

8 years ago | 0

Question

Vec:: In Windows Version But Not in Linux?

The vec "operator", which reehspes a matrix into a vector by stacking its columns, and is widely using in books and papers on ad...

8 years ago | 2 answers | 0