Triangular Numbers
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Lesson Description:
An introduction to triangular numbers.
Questions answered by this video:
- What are triangular numbers?
- How do you find triangular numbers?
- How can you compute the nth triangular number?
- How did Gauss find the sum of natural numbers from 1 to 100?
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Staff Review
This is a very basic video about triangular numbers, but the visuals help show them in a meaningful way. To find any triangular number, the video explains finding the sum of all natural numbers from 1 to n using a method that Gauss found. This historical anecdote is also explained. -
