横向
1
Mathematical rule or equation
2
Part of a line with two endpoints
4
Proven mathematical statement
纵向
1
Part of a whole number
2
Rectangle with four equal sides
3
Steepness of a line
5
Visual representation of data
6
Corner point of a polygon
7
Closed shape with straight sides
8
Number greater than zero
9
Number divisible only by 1 and itself