Hello everybody,(adsbygoogle = window.adsbygoogle || []).push({});

I wanted to know the uses of such a function definition;

f(x) = 3*f(x-1) - 3*f(x-2) + f(x-3) This works in linear and quadratic functions.

I'll thankfull for your replies :)

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Whats the use of this?

**Physics Forums | Science Articles, Homework Help, Discussion**