横向
1
Power to which a number is raised
4
Distance from center to edge of circle
6
Reference line in a graph
7
Lines that never intersect
8
Math using letters for unknown values
10
Collection of distinct elements
纵向
2
Rectangular array of numbers
3
Number greater than zero
5
Corner point of a polygon
9
Comparison of two quantities
11
Value that does not change
12
Steepness of a line