22/01/27 07:43:19.00 fTQ+efrZ.net
>>585 補足
＞The sequence (a_{n})_{n=-∞ }^{∞ } is a bi-infinite sequence, and can also be written as (・・・ ,a_{-1},a_{0},a_{1},a_{2},・・・ ).
これな
三歳児には難しいかもな
22/01/27 07:43:19.00 fTQ+efrZ.net
>>585 補足
＞The sequence (a_{n})_{n=-∞ }^{∞ } is a bi-infinite sequence, and can also be written as (・・・ ,a_{-1},a_{0},a_{1},a_{2},・・・ ).
これな
三歳児には難しいかもな