Need help approximating a polynomial & least square fit

[jmurphy]

Hi, I'm having trouble with the attached document. I'm not getting the right answers.... or any answers at all.

Thanks

Jackie

[RichardJ]

Here's a hint. If you get a strange answer from a function, it's always a good idea to look at what the inputs to that function are. Evaluate L. I think you will then see the cause of the problem

[ViktorKorobov]

Jacqueline,

See in attached file