Expression 2: absolute value left parenthesis, 3 halves "x" , right parenthesisabs32x
2
Expression 3: absolute value left parenthesis, 5 halves "x" , right parenthesisabs52x
3
Expression 4: absolute value left parenthesis, StartFraction, left parenthesis, 2 times floor left parenthesis, "x" , right parenthesis plus 1 , right parenthesis Over 2 , EndFraction "x" , right parenthesisabs2·floorx+12x