Normal matrix

A normal matrix is like a special kind of number puzzle where you have a bunch of different numbers in a square shape. The puzzle is called a matrix.

In a normal matrix, some special things happen. If you take the number puzzle and turn it upside down, the numbers are still in the same order. And if you take the puzzle and turn it sideways, the numbers are still in the same order.

It's kind of like a mirror - if you look at a normal matrix in a mirror, it looks exactly the same as the original one. That's because normal matrices have special properties that make them act like mirrors in some ways.

This might sound a little bit confusing, but basically, a normal matrix is a type of puzzle where the order of the numbers stays the same even if you turn it different ways. It's a special kind of matrix that has some cool mirror-like properties.