User Portlet
| Discussions |
|---|
| Hello all, What do you think about the values given by "Wolfram Alpha" in the cases: 1) sum_{k=n}^1 k = -9 for n=5 ? 2) sum_{k=5}^1 k =0 ? Thank you very much! Iulian |
User Portlet | Discussions |
|---|
| Hello all, What do you think about the values given by "Wolfram Alpha" in the cases: 1) sum_{k=n}^1 k = -9 for n=5 ? 2) sum_{k=5}^1 k =0 ? Thank you very much! Iulian |