横向
1
Value that does not change
5
Middle value in an ordered dataset
6
The number representing nothing
7
Rectangular array of numbers
11
Part of a circle's circumference
纵向
2
Result of raising a number to an exponent
3
Math using letters for unknown values
4
Comparison of two quantities
8
Sum divided by count
9
Corner point of a polygon
10
U-shaped curve of a quadratic function