Since least squares is not fully understood by me all that well, and the way my Dutch book throws me into the deep whitout really showing how things are done, i decided to look for some videos on Least Squares in Maple on YouTube. Well, i did found one, but then this happened. "Error, (in sum) summation variable previously assigned, second argument evaluates to 1 = 1 .. 5" I just want to go further with the video, but now im stuck and i have no clue how to go on.
https://youtu.be/8zh73UrJW6M?t=948 This is the video at the moment the part where i get stuck is shown.
I really like these sort of videos while they really do help out. I think its great.
This is my maple worksheet:
Thank you very much!