
#1




Point Xj is linear combination of rest of the other points ?
I remember in lecture 7, professor used a property
For any d+2 points, we can write Xj as linear combination of rest of the points. Q1. What is the proof for this property ? Let us take an example: d = 1 and points are (5,10,7) Q2. How do we write 7 in terms of 5 and 10 ? 
#2




Re: Point Xj is linear combination of rest of the other points ?
Quote:
For , the vectors are twodimensional () because of the zeroth coordinate, but to answer your specific question, has many solutions, for instance, and .
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#3




Re: Point Xj is linear combination of rest of the other points ?
Thank you professor..I was under impression we have to take only integer values for Ai. I will go through the linear independence once from wiki. Thanks for the link. I think that will make things clear to me.
Thanks a lot!! 
#4




Re: Point Xj is linear combination of rest of the other points ?
You are most welcome.
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