Creating nxnxn matrix python 3 Tutorial: A Beginner's Guide | Techniculus

Here's a simple nxnxn matrix python 3 tutorial, A matrix is a rectangular array of numbers, symbols, or expressions arranged in rows and columns. An nxnxn matrix is a 3-dimensional matrix with n rows, n columns, and n layers. In Python 3, we can create a 3-dimensional matrix using the NumPy library.

To create a nxnxn matrix Python 3 based, we first need to install the NumPy library. We can do this by opening the command prompt and typing "pip install numpy". Once the library is installed, we can start creating our matrix.

Here is the code to create an nxnxn matrix in Python 3 using NumPy:

import numpy as np n = int(input("Enter the value of n: ")) # get the value of n from user matrix = np.zeros((n,n,n)) # create a 3D matrix with n rows, n columns, and n layers # fill the matrix with values for i in range(n): for j in range(n): for k in range(n): matrix[i][j][k] = int(input("Enter the value for matrix[{}][{}][{}]: ".format(i, j, k))) print("The matrix is:") print(matrix) # display the matrix

In this code, we first import the NumPy library using the import statement. We then get the value of n from the user using the input() function and convert it to an integer using the int() function. Next, we create a 3D matrix using the np.zeros() function and pass in the dimensions of the matrix as a tuple. This creates a matrix filled with zeros.

We then use nested for loops to fill the matrix with values entered by the user. Finally, we display the matrix using the print() function.

Let's take an example to understand this better. Suppose we want to create a 3x3x3 matrix with the following values:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

We would run the code and enter the values one by one when prompted. The output would be:

Enter the value of n: 3 Enter the value for matrix[0][0][0]: 1 Enter the value for matrix[0][0][1]: 2 Enter the value for matrix[0][0][2]: 3 Enter the value for matrix[0][1][0]: 4 Enter the value for matrix[0][1][1]: 5 Enter the value for matrix[0][1][2]: 6 Enter the value for matrix[0][2][0]: 7 Enter the value for matrix[0][2][1]: 8 Enter the value for matrix[0][2][2]: 9 Enter the value for matrix[1][0][0]: 10 Enter the value for matrix[1][0][1]: 11 Enter the value for matrix[1][0][2]: 12 Enter the value for matrix[1][1][0]: 13 Enter the value for matrix[1][1][1]: 14 Enter the value for matrix[1][1][2]: 15 Enter the value for matrix[1][2][0]: 16 Enter the value for matrix[1][2][1]: 17 Enter the value for matrix[1][2][2]: 18 Enter the value for matrix[2][0][0]: 19 Enter the value for matrix[2][0][1]: 20 Enter the value for matrix[2][0][2]: 21 Enter the value for matrix[2][1][0]: 22 Enter the value for matrix[2][1][1]: 23 Enter the value for matrix[2][1][2]: 24 Enter the value for matrix[2][2][0]: 25 Enter the value for matrix[2][2][1]: 26 Enter the value for matrix[2][2][2]: 27 The matrix is: [[[ 1. 2. 3.] [ 4. 5. 6.] [ 7. 8. 9.]] [[10. 11. 12.] [13. 14. 15.] [16. 17. 18.]] [[19. 20. 21.] [22. 23. 24.] [25. 26. 27.]]]

As we can see, the code has successfully created the nxnxn matrix and displayed it on the screen.

In conclusion, creating an nxnxn matrix in Python 3 using NumPy is a simple process. We just need to install the NumPy library, create a 3D matrix using the np.zeros() function, and fill it with values using nested for loops. With this code, beginners can easily create and manipulate 3D matrices in Python 3.