Expression 27: "f" Subscript, "H" "L" "p" , Baseline left parenthesis, "x" , right parenthesis equals left brace, "x" greater than or equal to "c" Subscript, "s" , Baseline : "f" Subscript, "s" "l" , Baseline left parenthesis, "x" , right parenthesis , "x" less than or equal to "c" Subscript, "t" , Baseline : "f" Subscript, "t" "l" , Baseline left parenthesis, "x" , right parenthesis , "f" left parenthesis, "x" , right parenthesis , right bracefHLpx=x≥cs:fslx,x≤ct:ftlx,fx
27
Expression 28: "f" Subscript, "i" "H" "L" "p" , Baseline left parenthesis, "x" , right parenthesis equals left brace, "x" greater than or equal to "b" Subscript, "s" , Baseline : "f" Subscript, "i" "s" "l" , Baseline left parenthesis, "x" , right parenthesis , "x" less than or equal to "b" Subscript, "t" , Baseline : "f" Subscript, "i" "t" "l" , Baseline left parenthesis, "x" , right parenthesis , "f" Subscript, "i" "n" "v" "e" "r" "s" "e" , Baseline left parenthesis, "x" , right parenthesis , right bracefiHLpx=x≥bs:fislx,x≤bt:fitlx,finversex