What's a Quadratic Sequence

Sequences are sets of numbers that are connected in some way. In a quadratic sequence, the difference between each term increases, or decreases, at a constant rate.

What is a quadratic sequence example?

A quadratic sequence is a sequence of numbers in which the second difference between any two consecutive terms is constant. Consider the following example: 1;2;4;7;11;… We notice that the second differences are all equal to 1. Any sequence that has a common second difference is a quadratic sequence.

What are quadratic sequences used for?

Original Sequence14n214OS − n200

James H. Sterling

James H. Sterling

Environmental Science & Climate Journalist

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.

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