横向
1
Comparison of two quantities
3
Lines that never intersect
5
Reference line in a graph
6
Proven mathematical statement
7
Mathematical rule or equation
纵向
2
Round shape with all points equidistant
4
Rectangular array of numbers
6
Line touching circle at one point
8
Closed shape with straight sides
9
Corner point of a polygon
10
Steepness of a line
11
Distance from center to edge of circle