式7: exponent left parenthesis, negative "x" squared , right parenthesisexp−x2
7
式8: StartFraction, 1 Over "x" , EndFraction exponent left parenthesis, negative "x" squared , right parenthesis1xexp−x2
8
式9: StartFraction, 1 Over "x" squared , EndFraction exponent left parenthesis, negative "x" squared , right parenthesis1x2exp−x2
9
式10: "x" exponent left parenthesis, negative "x" squared , right parenthesisxexp−x2
10
式11: "x" squared exponent left parenthesis, negative "x" squared , right parenthesisx2exp−x2
11
式12: StartFraction, arctan left parenthesis, "x" , right parenthesis Over StartNestedFraction, pi NestedOver 2 , EndNestedFraction , EndFractionarctanxπ2