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
https://fr.mathworks.com/matlabcentral/answers/62349-how-to-plot-a-matrix
https://128mots.com/index.php/2022/03/13/modulo-matlab/
https://128mots.com/index.php/2021/09/06/meshgrid-matlab/
https://128mots.com/index.php/2021/06/26/x-nxn-matrix-matlab/