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# Function notation

What does the subscript mean in $$f_n(x)$$?

Note by Harrison Lian
4 years, 9 months ago

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Say $$f_{n}(x)=x^n$$. Then $$f_{1}(n)=x$$ $$f_{2}(x)=x^2$$, etc.

- 4 years, 9 months ago

Its just a name given to a polynomial.

- 4 years, 9 months ago

It's like any other subscript of any other variable. It just denotes that this is function n out of a family of functions specified by some criteria.

- 4 years, 9 months ago