式8: "f" left parenthesis, "x" , right parenthesis equals "f" Subscript, 1 , Baseline left parenthesis, "x" , right parenthesis plus "f" Subscript, 2 , Baseline left parenthesis, "x" , right parenthesisfx=f1x+f2x
8
式9: negative "b" "x"−bx
9
式10: "x" Subscript, "s" , Baseline equals negative StartFraction, "b" Over 2 "a" , EndFractionxs=−b2a
equals=
negative 1.1 5 3 7 7 1 3 4 7 8 7−1.15377134787
10
式11: negative "b" left parenthesis, "x" minus "x" Subscript, "s" , Baseline , right parenthesis plus "f" Subscript, 1 , Baseline left parenthesis, "x" Subscript, "s" , Baseline , right parenthesis−bx−xs+f1xs
11
式12: "x" equals "x" Subscript, "s" , Baselinex=xs
equals=
negative 1.1 5 3 7 7 1 3 4 7 8 7−1.15377134787
12
S: "S" equals left parenthesis, "x" Subscript, "s" , Baseline , "f" left parenthesis, "x" Subscript, "s" , Baseline , right parenthesis , right parenthesisS=xs,fxs
Q: left parenthesis, 2 "x" Subscript, "s" , Baseline , "f" Subscript, 1 , Baseline left parenthesis, 2 "x" Subscript, "s" , Baseline , right parenthesis , right parenthesis2xs,f12xs
B: left parenthesis, "x" Subscript, "s" , Baseline , "f" Subscript, 1 , Baseline left parenthesis, "x" Subscript, "s" , Baseline , right parenthesis , right parenthesisxs,f1xs
