(03-10-2017 09:18 PM)Han Wrote: (03-10-2017 09:13 PM)tdh79 Wrote: Honestly I don't know, i guess I'll just try the methods in your link and the LAGRANGE command and see if i get results that look like the ones in my math book

Out of curiosity, what is the topic (in your book) from which you obtained the original problem? And what type of math book is it? (Stats, Linear Algebra, ... )

I don't know right now where excactly the problem is presented but it's somewhere in chapters covering polynomial functions, derivations and integrals. I'm studying electrical engineering, powerplants, communications etc..

I've been a sertified telco lineman for 18 years and I'm trying to get some more education, please excuse my poor english I'm Norwegian so my accent is almost as bad as Thor Heyerdahl's