横向
1
Collection of distinct elements
2
Middle value in an ordered dataset
3
Difference between highest and lowest values
6
U-shaped curve of a quadratic function
7
Line segment connecting two circle points
8
Proven mathematical statement
纵向
1
Result of addition
2
Rectangular array of numbers
4
Steepness of a line
5
Closed shape with straight sides
9
Rectangle with four equal sides