横向
1
Comparison of two quantities
4
Corner point of a polygon
5
Middle value in an ordered dataset
6
Line segment connecting two circle points
12
Distance from center to edge of circle
13
Value that does not change
纵向
2
Part of a line with two endpoints
3
Result of multiplication
7
Line crossing from corner to corner
8
Mathematical rule or equation
9
Parts per hundred
10
Space between two intersecting lines
11
Math using letters for unknown values