xnxn matrix matlab plot algorithm – Matlab tuto

In this article we discuss xnxn matrix matlab plot algorithm and xnxn matrix matlab code. In other words, we will first see how to create a matrix in matlab. Then we will see how we can create a graph from this matrix. Finally we will discuss some advanced functions with matlab.

Example with 3x3x3 matrix in matlab

First, in this example I am using the rand function to generate decimal values in a 3x3x3 matrix. Then I display it in matlab then I create a graph with the plot 3 function on the 3 dimensions of the example matrix.

```>> M = rand(3,3,3)

M(:,:,1) =

0.8147    0.9134    0.2785
0.9058    0.6324    0.5469
0.1270    0.0975    0.9575

M(:,:,2) =

0.9649    0.9572    0.1419
0.1576    0.4854    0.4218
0.9706    0.8003    0.9157

M(:,:,3) =

0.7922    0.0357    0.6787
0.9595    0.8491    0.7577
0.6557    0.9340    0.7431

>> plot3(M(1,:),M(2,:),M(3,:))```

In addition, here is a preview of the graph that is created with this:

Example with 3×3 matrix in matlab with int value

```>> M=randi([1,10],3,3)
>> plot(M(1,:),M(2,:))```

In this example which is similar to the previous one I use the randi function which allows me to generate integers with matlab in a range given as an argument. In the end I get a 3×3 matrix that I display in the console then I use the plot function.

Here is another result if now I use plot3 function :

```>> M=randi([1,10],3,3)
>> plot3(M(1,:),M(2,:),M(3,:))```

About Matrix indexing in Matlab :

Also, in databases, indexing refers to extracting a single data point from a large data set.

The general purpose of an index is to quickly and easily extract values of interest from a database.

MATLAB also allows users to store and retrieve data from databases.

Vector and matrix indexing matlab :

```>> A = magic(5)

A =

17    24     1     8    15
23     5     7    14    16
4     6    13    20    22
10    12    19    21     3
11    18    25     2     9

>> A(1,:)

ans =

17    24     1     8    15

>> A(:,1)

ans =

17
23
4
10
11

>> A(3,5) % Extract the element in row 3, column 5

ans =

22

>> A(1:3,2:4)  % Extract the vectors

ans =

24     1     8
5     7    14
6    13    20

>> A(:,1)```

Conclusion – xnxn matrix matlab plot algorithm

In conclusion of this article we had an overview of how to create and make a plot or plot3 of an nxnxn matric in matlab. Also we have seen how the indexing of a matlabe matrix or a vector works. I offer more advanced functions in a following article.

External links – xnxn matrix matlab plot algorithm:

https://fr.mathworks.com/matlabcentral/fileexchange/62962-matrix-plotting
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