What are matrices??

Question

how to use

Answer 1

Matrices are rectangular arrays. You can imagine a m by n matrix as m arrays of length n stacked atop some another. So, an array of length n can be seen as a 1 by n matrix.

Answer 2

Matrices with respect to maths or array is set of values that are assigned in grids, i.e. rows and columns. ex. in array arr [5][6], a value 'X' stored at location arr [2][4] can be said as X is in 2nd row and 4th column of the matrix(array) arr.