# Amit Chakraborty

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Question

Sparse Array with reshape

I have a similar type of problem Yesterday but that is with non-sparse matrix. I am very newly dealing with these sparse matrix ...

ongeveer 2 maanden ago | 1 answer | 0

### 1

answerQuestion

Multiplication between elements of two different cells

F= num2cell(rand(360,4^3),2); T= num2cell(rand(10,4^3),2); RR = F{1:36}.*T{1}; EE = F{37:73}.*T{2}; Error :: Error us...

ongeveer 2 maanden ago | 1 answer | 0

### 1

answerQuestion

Splitting matrix and create new matrix

Hello All. I have a Matrx. A = rand (30,64^3); And I need to split that large matrix A in row by row. It means that : B1= A...

ongeveer 2 maanden ago | 2 answers | 0

### 2

answersQuestion

Two Matrices and Tensor Product

I have a Matrix. Lets say it is A . Size of A is : 1116* 16; and another Matrix B: Size is ::: 31*16; My matrix multiplicat...

ongeveer 2 maanden ago | 1 answer | 0

### 1

answerQuestion

Requested 196608x4096 (12.0GB) array exceeds maximum array size preference. Creation of arrays greater than this limit may take a long time and cause MATLAB to unresponsive

I have two matrices. Matrix A : size is 196608x4096 sparse double Matrix B: size is [ 16 16 16 ] double I was trying to ...

ongeveer 2 maanden ago | 0 answers | 0

### 0

answersMultiplication of sparse matrix and a normal matrix

@Walter Roberson , @David Goodmanson Thank you Both. I have learnt a new thing from you guys.

2 maanden ago | 0

Question

Multiplication of sparse matrix and a normal matrix

I have a Sparse Matrix : S The size of S is : 196608x4096 sparse double and the normal (Non Sparse) matrix : D The size of ...

2 maanden ago | 3 answers | 0

### 3

answersQuestion

Showing me wrong Matrix Size.

fds = fileDatastore(" " ); N= cell2mat(fds.Files); kk= ones(64,1); OO= N.*kk; I have created a Data store with a matlab ...

2 maanden ago | 2 answers | 0

### 2

answersQuestion

Out of memory issue

I have a sparse matrix which has a size of, (2031616x4096 sparse double). I want to make 10 subset of this matrix and need t...

2 maanden ago | 1 answer | 0

### 1

answerQuestion

Removing one length from a matrix

I have a matrix which size is , A= 256x256x31; And another Matrix (4D) ; B=2031616x64 [ 4D format is : ( 256x256x31)x64] ...

2 maanden ago | 1 answer | 0

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answerQuestion

Creating Matrix Subset automatic.

I have a matrix, A which have a 9 row and 9 column. I need to make a subset from it. The prospective subset we need : S1= [ 1 ...

2 maanden ago | 1 answer | 0

### 1

answerQuestion

Extracting positive and negative element of a matrix?

Suppose; A= 3D Matrix of size (10,10,10) , where I have some values in positive and some values in negative. So, with that pos...

3 maanden ago | 1 answer | 0

### 1

answerQuestion

OUT OF MEMORY PROBLEM

I have 3 data sets such as , SourceCords(16777216*3), DetectorCords(16777216*3),Voxel(16777216*3). Apart from the Voxel data res...

5 maanden ago | 1 answer | 0

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answerQuestion

Accessing data in matfile.

I have a matrix called miu. And the size of miu is ::: 262144x1 double To save the memory purpose I have used: miu =matf...

5 maanden ago | 1 answer | 0

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answerQuestion

Having the error , " the parfor loop cannot run due to the way variable is used".

The following is my code. I am having the error message " the parfor loop cannot run due to the way variable, 'a' is used". N...

5 maanden ago | 2 answers | 0

### 2

answersQuestion

I am having the error while I try to run and angle dependent matrix, "Dimensions of arrays being concatenated are not consistent." My angle is ranging from 0:6:360.

zp = -30; zd = -10; xv = 10; yv = 10; zv = 10; phi=0:6:360; Inv_B_RD = [cos(phi) 0 sin(phi) (-xv*cos(phi) -zv*sin...

5 maanden ago | 1 answer | 0