協方差矩陣 — xié fāng chà jǔ zhèn

1

xié²

to assist; to cooperate, to join; to harmonize / square, rectangle; side; region; flag / difference, gap; almost, nearly; in error; an officer / carpenter's square, ruler, rule / row, column; ranks, troop formation

2

fāng¹

to assist; to cooperate, to join; to harmonize / square, rectangle; side; region; flag / difference, gap; almost, nearly; in error; an officer / carpenter's square, ruler, rule / row, column; ranks, troop formation

3

chà⁴

to assist; to cooperate, to join; to harmonize / square, rectangle; side; region; flag / difference, gap; almost, nearly; in error; an officer / carpenter's square, ruler, rule / row, column; ranks, troop formation

4

jǔ³

to assist; to cooperate, to join; to harmonize / square, rectangle; side; region; flag / difference, gap; almost, nearly; in error; an officer / carpenter's square, ruler, rule / row, column; ranks, troop formation

5

zhèn⁴

to assist; to cooperate, to join; to harmonize / square, rectangle; side; region; flag / difference, gap; almost, nearly; in error; an officer / carpenter's square, ruler, rule / row, column; ranks, troop formation

As word