Row-wise or column-wise ordering?

1. What comes first in order column or row?
2. Which is faster row major or column-major order?
3. Why is row-major order faster than column major?

What comes first in order column or row?

The number of rows and columns that a matrix has is called its dimension or its order. By convention, rows are listed first; and columns, second.

Which is faster row major or column-major order?

It only shows that in C language, 2-D arrays are stored in row major order and thus iterating its elements in a row major order is more efficient. In languages like Pascal and Fortran, iterating by column major order will be more efficient because 2-D arrays are stored in column major order there.

Why is row-major order faster than column major?

Reading memory in contiguous locations is faster than jumping around among locations. As a result, if the matrix is stored in row-major order, then iterating through its elements sequentially in row-major order may be faster than iterating through its elements in column-major order.