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Question

How to solve Ax=b where A is a rectangular matrix for higher order in matlab

How to solve Ax=b Where and b=

1 year ago | 1 answer | 1

### 1

answerQuestion

How to do PAT image reconstruction

Hello I have to reconstruct image by model based inversion for a circular medium in 2D system. I have witten the following code ...

1 year ago | 0 answers | 0

### 0

answersQuestion

How to write impulse response in frequency domain in matlab?

Hello how to write del(w-w0) in matlab? Please help

2 years ago | 0 answers | 0

### 0

answersQuestion

How to store values in a loop?

Hello for i1=1:size(sen,1) for j1=1:size(r2,2) dist_de_grid1(j1)=sqrt((sen(i1,1)-r2(1,j1)).^2+(sen(i1,2)-c2(1,j1)...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to do least square solutions

Hello Sir, I have an equation x=argmin (norm(A*xo-b))^2) How to take argmin for this equation. If A=[1 2;3 4] and initial value...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to convert a matrix to a vector

Hello , I have a square matrix let M=[1,2,4;6,5,7;8,3,9]. Now I have to convert it into a column vector as. c=[1;2;4;6;5;7;8;3;9...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to extrapolate data

Hello, I have coordinates of (x,y) . I have also the coordinates of the points where the values of (x,y) have to extrapolate. If...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to write integration equation in matlab

Hello sir I have attached here diffusion equation. How can I write the above equations in matlab using finite element method. ...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to plot pixel value in mm range

Hello , I have attached here a mat file. How to plot this B1 that X axis as mm range. Please help.

2 years ago | 0 answers | 0

### 0

answersQuestion

How to create image from a matrix?

Hello, I have an matrix whose dimension is 101x4032 double. Now how can I see the image using imshow function? Please help me.

2 years ago | 2 answers | 0

### 2

answersQuestion

How to find out coordinates of a value from a matrix?

Hello. I have a matrix c=[1 2; 3 4; 5 6; 7 8; 9 10]; % and a vector v=[0;0;5;0;5] Now, how to get 5...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find out the value of a matrix corresponding row and column?

Hello I have index of a matrix x=[1;2;3] & y=[1;1;2]. Now how to check what value in which index of the matrix.Suppose the matri...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to compare two vector with different dimension

Hello, I have two vectors x1 = [1;2;4;7;8]; y1 = [2;5;8;6;1]; which are coordinates of all zero and non zero values of a matr...

2 years ago | 1 answer | 0

### 1

answerQuestion

linear interpolation without meshgrid

Hello I have to do linear interpolation. n=interp2(X,Y,V,x,y,'linear'). This function is not working. Because my X and Y coordi...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to find element index in a matrix

Hello sir kindly help me to find position of element '1' in matrix 'v'. i.e. (3,3).

2 years ago | 1 answer | 0

### 1

answerQuestion

Check points inside n number of triangle in a square

Hello In a square geometry n number of triangles and coordinates of each vertices are given.If N no. of points are in the mediu...

2 years ago | 1 answer | 0

### 1

answerQuestion

How to correct the error in specifycoefficient

My function is function c=ccoef(nodes,elements,~,~,~,~) N=1; nr=size(elements,2); c=zeros(N,nr); c(1,:)=1/3/(0.02+0.01*20)*...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to fill a triangle in an circular mesh in pdeplot?

Hello sir I have an circular mesh. Inside the mesh I have another circle.Now how to fill the circle? In the circle there are 4...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to get image from a vector?

I have data for each element of an mesh where for inclusion element, value is 0.3 and for other element value is 0.02. How can I...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to convert a column vector into an image

Hello sir I have an vector of size (258x1). Now I want to convert it into a square matrix (101x101) i.e. in 2D image in matlab....

2 years ago | 1 answer | 0

### 1

answerQuestion

How to update a matrix with the node number

Hello I have a circular geometry which is discretised by triangular elements. Now suppose the total number of triangle is 4 wit...

2 years ago | 0 answers | 0

### 0

answersQuestion

How to check each element of a vector with each elements of another vector if dimension of both matrix are not equal

I have two vector A=[1;4;7] and B=[4;6;1;3;2;8;0] Now I want to check whether each elements of A are present or not in B. If ...

2 years ago | 1 answer | 0

### 1

answerclustering image, grayscale image

Please anyone upload a matlab code for kmeans clustering of an ultrasound image.

5 years ago | 0