表达式10: "S" Subscript, 1 , Baseline left parenthesis, "p" , right parenthesis equals max left parenthesis, 0 , 2 "p" , right parenthesisS1p=max0,2p
10
表达式11:
11
Elasticity
对学生隐藏该文件夹。
12
Surplus
对学生隐藏该文件夹。
17
表达式18: "x" equals "S" Subscript, 1 , Baseline left parenthesis, "y" , right parenthesis left brace, "y" greater than or equal to 0 , right bracex=S1yy≥0
18
表达式19: "x" equals "D" Subscript, 3 , Baseline left parenthesis, "y" , right parenthesis left brace, "y" greater than or equal to 0 , right bracex=D3yy≥0
19
表达式20: "P" equals 10P=10
00
2020
20
表达式21: "y" equals "P" left brace, 0 less than or equal to "x" less than or equal to max left parenthesis, "S" Subscript, 1 , Baseline left parenthesis, "y" , right parenthesis , "D" Subscript, 3 , Baseline left parenthesis, "P" , right parenthesis , right parenthesis , right bracey=P0≤x≤maxS1y,D3P
21
表达式22: "x" less than or equal to "D" Subscript, 3 , Baseline left parenthesis, "y" , right parenthesis left brace, "y" greater than or equal to "P" , right brace left brace, "x" greater than or equal to 0 , right bracex≤D3yy≥Px≥0
22
表达式23: "x" less than or equal to "S" Subscript, 1 , Baseline left parenthesis, "y" , right parenthesis left brace, "y" less than or equal to "P" , right brace left brace, "x" greater than or equal to 0 , right bracex≤S1yy≤Px≥0
