Timeline for Proofs without words
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 23, 2020 at 8:43 | history | edited | Martin Sleziak | CC BY-SA 4.0 |
added a Wayback Machine link for the dead link
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| Oct 23, 2012 at 15:24 | history | edited | I. J. Kennedy | CC BY-SA 3.0 |
added image
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| Oct 26, 2010 at 5:46 | comment | added | Tobias Hagge | Sorry for not noticing your question (much) earlier. The differences between adjacent terms in Pascal's triangle form another triangle which obeys the same generation rules. In my picture of that triangle, the yellow squares count some of the downward paths on a square grid which has been rotated $45^\circ$, namely those that never fall to the left of the top square. One definition of $C_n$ is that it is the number of such paths which terminate at the bottom corner of an $n \times n$ grid. | |
| Mar 11, 2010 at 16:38 | comment | added | Willie Wong | Do you have an explanation for the picture? I looked at it, and looked at it, and don't get it. | |
| Mar 6, 2010 at 21:55 | history | answered | Tobias Hagge | CC BY-SA 2.5 |