**1. matrice diagonals
2. step-by-step tutorial**

Matrices are an essential concept in mathematics, widely used in various fields such as computer science, physics, and engineering. They provide a convenient way to organize and manipulate data. One crucial aspect of matrices is their diagonals, which hold valuable information about the matrix’s properties. In this article, we will delve into the world of matrice diagonals and explore how to calculate the sum of the primary and secondary diagonals.

## The Primary Diagonal

The primary diagonal of a matrix consists of the elements that lie on a straight line from the top left to the bottom right. To calculate the sum of the primary diagonal, you need to add the values of these elements. Let’s consider an example to understand this better:

| 2 4 6 |

| 1 5 8 |

| 3 9 7 |

In the above matrix, the primary diagonal elements are 2, 5, and 7. Adding them together, we get a sum of 14. It’s as simple as that!

## The Secondary Diagonal

The secondary diagonal, on the other hand, consists of the elements that lie on a straight line from the top right to the bottom left. Similar to the primary diagonal, we can find the sum of the secondary diagonal by adding its elements. Let’s use another example to illustrate:

| 3 5 2 |

| 9 4 1 |

| 6 8 7 |

In this matrix, the secondary diagonal elements are 2, 4, and 6. Adding them together, we obtain a sum of 12.

## A Step-by-Step Tutorial: Calculating Matrice Diagonals

Now that we understand the concept of primary and secondary diagonals, let’s walk through the process of calculating them step-by-step:

- Start by identifying the matrix you want to work with. Ensure that it is a square matrix, meaning the number of rows is equal to the number of columns.
- Locate the primary diagonal elements by identifying the elements that lie on a straight line from the top left to the bottom right of the matrix.
- Add up the values of the primary diagonal elements to obtain the sum of the primary diagonal.
- Similarly, determine the secondary diagonal elements by identifying the elements that lie on a straight line from the top right to the bottom left.
- Sum up the values of the secondary diagonal elements to find the sum of the secondary diagonal.

By following these steps, you can easily calculate the sum of both the primary and secondary diagonals for any given square matrix.

## Conclusion

Understanding matrice diagonals is a fundamental concept in matrix mathematics. By knowing how to calculate the sum of the primary and secondary diagonals, you can gain valuable insights into the properties of a matrix. Remember, the primary diagonal runs from the top left to the bottom right, while the secondary diagonal runs from the top right to the bottom left. By following a simple step-by-step tutorial, you can effortlessly compute these diagonals and unlock a deeper understanding of matrices.

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**Source : **

Sum of the diagonals of a matrice

Access now: https://t.co/7t4zwuF3AI

In the article we have a step-by-step tutorial on how to add the matrice diagonals, the primary diagonal and the secondary diagonal.

Cc @sseraphini pic.twitter.com/WyiaQgINO9

— Klecianny (@Kecbm) February 1, 2024