Expression 3: left parenthesis, "a" plus "b" * tanh ( ( "x" minus "a" ) / "b" ) , right parenthesis left brace, "x" greater than "a" , right bracea+b*tanh((x−a)/b)x>a
3
Expression 4: ( negative 1 / ( ( "x" minus "a" ) / ( 1 minus "a" ) plus 1 ) plus 1 ) * ( 1 minus "a" ) plus "a" left brace, "x" greater than "a" , right brace(−1/((x−a)/(1−a)+1)+1)*(1−a)+ax>a
4
Expression 5: StartFraction, "x" Over "x" plus 1 , EndFractionxx+1