横向
1
Exact correspondence on both sides
2
Result of raising a number to an exponent
4
Mathematical statement of equality
8
Result of multiplication
9
Line touching circle at one point
纵向
1
Collection of distinct elements
2
U-shaped curve of a quadratic function
3
Divisible by two
5
Symbol representing unknown value
6
Middle value in an ordered dataset
7
Value that does not change