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triangular numbers |
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triangular numbers [trī¦aŋ·gyə·lər ′nəm·bərz] (mathematics) The numbers 1, 3, 6, 10, …, which are the numbers of dots in successive triangular arrays, and are given by the expression (n+ 1)(n/2), wheren= 1, 2, 3,…. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| 2] Triangular numbers [ILLUSTRATION OMITTED] 1 1 3 1 + 2 6 1 + 2 + 3 10 1 + 2 + 3 + 4 15 1 + 2 + 3 + 4 + 5 . |
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