john-conway
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The Doomsday Algorithm: Mentally Calculate Day of Week for Any Date |
|
0 | 365 | 1 November 2021 |
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| The Doomsday Algorithm: Mentally Calculate Day of Week for Any Date |
|
0 | 365 | 1 November 2021 |