表达式5: "b" equals left parenthesis, "x" minus "t" , right parenthesis "R" Subscript, "i" , Baseline plus "t"b=x−tRi+t
5
表达式6: "R" Subscript, "i" , Baseline equals 0Ri=0
00
11
6
表达式7: StartFraction, "c" Over "x" , EndFractioncx
7
表达式8: "c" equals min left parenthesis, "a" , "b" , right parenthesis minus StartFraction, "d" "k" Over 4 , EndFraction left parenthesis, 1 minus "R" Subscript, "i" , Baseline , right parenthesisc=mina,b−dk41−Ri
8
表达式9: "d" equals "e" Superscript, negative StartFraction, 2abs left parenthesis, "x" minus "t" , right parenthesis Over "k" , EndFraction , Baselined=e−2absx−tk
