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Simpson method on f(x)

Hi, I am trying to code the integration of a simple function using Simpson method. I have managed to get the right solution us...

6 months ago | 1 answer | 0

### 1

answerQuestion

Add cells into a square

Hi, I have the below square. How can I create a mesh of cells inside the square generated from equal subdivision on each edge? ...

6 months ago | 2 answers | 0

### 2

answersQuestion

Creating a logic vector out of 2D matrix

Hi, How can I create a logic vector out of a matrix in a way that each row of equals to when the second element of per row...

7 months ago | 3 answers | 0

### 3

answersQuestion

mapping matrix of two vectors

Hi, If I have two vectors and as shown below. Is there a way to create matrix that mapps each row of with its correspondent...

8 months ago | 1 answer | 0

### 1

answerQuestion

reordering matrix elements according to another matrix

Hi, If I have the following two matrices: A = [2 ; 4 ; 1 ; 3]; B = [12; 15; 20; 9]; where each row in corresponds to each r...

8 months ago | 2 answers | 0

### 2

answersQuestion

Find out the cell index from matric values

Hi all, I want to find out the cell index of each row of matrix . Each row has two values that correspond to and . I need to c...

8 months ago | 1 answer | 0

### 1

answerQuestion

Relation between two vectors elements

Hi all, suppose I have two vectors: A = [1 2 3 4 5 6 7 8 9 10]; B = [4 7 8 2 1 10 3 5 9 6]; Ho can I say, the first element ...

8 months ago | 2 answers | 0

### 2

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Access the x and y values using cell index

Hi all, I am trying to access the values of both x and y values using just the cell index similar to the structure shown below....

8 months ago | 1 answer | 0

### 1

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spectral solution to 1D KdV equation

I am trying to solve the solution of a 1D KdV equation (ut+uux+uxxx=0) starting from a two solitons initial condition using Four...

2 years ago | 0 answers | 0

### 0

answersQuestion

ode45 goes to infinity!

Dear all, I am solving 2D shallow fluid equations where I first use the time-independent equations and then I integrate the t...

2 years ago | 0 answers | 0

### 0

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values instead of points

Dear all, I have the following code: xmin=27.5; xmax=35.5; ymin=32.8; ymax=62.5; x=linspace(xmin,xmax,100); y=y...

5 years ago | 1 answer | 0

### 1

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PDE solution in a different spatial domain

Hi, I have a time-dependent PDE solution T(k,i) where k runs over time steps (i.e., k=1:nt) and i suns over spatial steps (i....

5 years ago | 0 answers | 0

### 0

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Change the value of PDE solution spatial indices

Dear all, I have solved the partial differential equitation of the diffusion equation (first order in time and second order i...

5 years ago | 0 answers | 0