Expression 3: StartFraction, left parenthesis, arctan left parenthesis, StartNestedFraction, "x" NestedOver 4 , EndNestedFraction plus 2.6 2 5 minus 3 , right parenthesis plus StartNestedFraction, pi NestedOver 2 , EndNestedFraction , right parenthesis Over pi , EndFractionarctanx4+2.625−3+π2π
3
Expression 4: StartFraction, left parenthesis, arctan left parenthesis, StartNestedFraction, "x" NestedOver 4 , EndNestedFraction plus 2.6 2 5 minus 2 , right parenthesis plus StartNestedFraction, pi NestedOver 2 , EndNestedFraction , right parenthesis Over pi , EndFractionarctanx4+2.625−2+π2π
4
Expression 5: StartFraction, left parenthesis, arctan left parenthesis, StartNestedFraction, "x" NestedOver 4 , EndNestedFraction plus 2.6 2 5 minus 1 , right parenthesis plus StartNestedFraction, pi NestedOver 2 , EndNestedFraction , right parenthesis Over pi , EndFractionarctanx4+2.625−1+π2π