運算式 20: "f" left parenthesis, "z" , right parenthesis equals "D" Subscript, "i" "v" , Baseline left parenthesis, "z" minus "a" , left parenthesis, 1 , 0 , right parenthesis minus "M" Subscript, "u" "l" "t" , Baseline left parenthesis, "C" Subscript, "o" "n" "j" , Baseline left parenthesis, "a" , right parenthesis , "z" , right parenthesis , right parenthesisfz=Divz−a,1,0−MultConja,z