Rank means order; Salary also refers to the rank of an official.

I. Detailed explanation

1, rank zhi √ pictophonetic characters. Words from the grain, from the loss, the loss is also loud. Lost is an "anecdote" province. "Yi" means "the back car is in front" and is extended to "dynamic sequencing". "Wo" refers to "five grains" and is extended to "salary". "Harmony" and "Yi" provinces unite to represent "dynamic salary ranking".

2. Original meaning: official salary determined according to merits and demerits. Extended meaning: the rank of officials evaluated according to their merits and demerits. Further extension: order. Note: The salary of ancient officials was not an iron rice bowl, but was determined according to the year-end assessment. The salary of the meritorious person increases, and the salary of the guilty person decreases or even cancels.

It's like a motorcade composed of officials' cars. Some cars can overtake and improve their position in the team, and some cars will be pulled down and left behind. This gives birth to the concept of dynamic sorting.

Second, mathematical explanation.

In linear algebra, if there is an R-order sub-formula in a matrix that is not 0 and any r+ 1 sub-formula is 0, then this R-order is called the rank of the matrix.

Third, the interpretation of ancient books

1, while Er Ya Shi Xun ranks in wisdom. The note is very sweet.

2, and' Er Ya Shi Xun' rank rank, also. "Note" is pronounced in German. The position of german pronunciation in poetry. The "notes" are very clear.

3. It is equivalent to the rank of Shi Pin Xiaoya. The popular appearance of paper money. The "notes" flowed out of infinity.

4. Poetry Xiaoya's left and right grades. "Notes" are awesome.