表达式3: "N" left parenthesis, 3 , right parenthesisN3
equals=
4.54.5
3
表达式4: "N" left parenthesis, "N" left parenthesis, 3 , right parenthesis , right parenthesisNN3
equals=
3.9 3 2 0 3 8 8 3 4 9 53.93203883495
4
表达式5: "N" left parenthesis, "N" left parenthesis, "N" left parenthesis, 3 , right parenthesis , right parenthesis , right parenthesisNNN3
equals=
3.7 5 1 1 2 6 5 1 1 0 13.75112651101
5
表达式6: "N" left parenthesis, "N" left parenthesis, "N" left parenthesis, "N" left parenthesis, 3 , right parenthesis , right parenthesis , right parenthesis , right parenthesisNNNN3