| ??? 06/07/09 20:56 Modified: 06/07/09 20:57 Read: times |
#165917 - Thats easy.... Responding to: ???'s previous message |
the sum of any series 1..n is given by n(n+1)/2
I cannot remember who it was but some famous mathematian was set the the problem of adding from 1 to 100 by his school teacher who was expecting a quiet hour to have a snooze. You've got n/2 pairs of numbers which add to n+1 1+100=101 2+99=101 and so on. |
| Topic | Author | Date |
| As I like tests when interviewing people | 01/01/70 00:00 | |
| Nice one | 01/01/70 00:00 | |
| Ok Then | 01/01/70 00:00 | |
| Reminding of Achilles and the turtoise | 01/01/70 00:00 | |
| The story is... | 01/01/70 00:00 | |
| Infinite series need not requre inf number of steps | 01/01/70 00:00 | |
| Thats easy.... | 01/01/70 00:00 | |
| Yes | 01/01/70 00:00 | |
I wonder | 01/01/70 00:00 |