式126: "B" Subscript, "S" , Baseline left parenthesis, "x" , right parenthesis equals StartFraction, left parenthesis, StartAbsoluteValue, "x" , EndAbsoluteValue plus "x" , right parenthesis Over "x" plus StartAbsoluteValue, 0 Superscript, StartAbsoluteValue, "x" , EndAbsoluteValue , Baseline plus 1 , EndAbsoluteValue minus 1 , EndFraction minus 1BSx=x+xx+0x+1−1−1
126
式127: "B" left parenthesis, "x" , right parenthesis equals StartFraction, left parenthesis, StartAbsoluteValue, "x" , EndAbsoluteValue plus "x" , right parenthesis Over 2 "x" plus StartAbsoluteValue, 0 Superscript, StartAbsoluteValue, "x" , EndAbsoluteValue , Baseline plus 1 , EndAbsoluteValue minus 1 , EndFractionBx=x+x2x+0x+1−1
127
式128: "B" Subscript, "g" , Baseline left parenthesis, "a" , "b" , right parenthesis equals "B" left parenthesis, "a" minus "b" , right parenthesisBga,b=Ba−b
128
式129: "E" left parenthesis, "a" , "x" , right parenthesis equals "B" left parenthesis, min left parenthesis, 2 Superscript, left parenthesis, "x" minus "a" , right parenthesis , Baseline , 2 Superscript, negative left parenthesis, "x" minus "a" , right parenthesis , Baseline , right parenthesis minus 0.9 9 9 , right parenthesisEa,x=Bmin2x−a,2−x−a−0.999