Monday, November 24, 2008

4.3 Least Squares

Main Points:
If you have a constant that must be used to satisfy two equations which is impossible, a constant can be found that is the best, but not perfect for both equations using a vector that is perpindicular to the other vector from the original. Mathematically this constant is represented by x dot y divided by x dot x (x is the equation in vector form).

Challenges:
I forgot how to find the perpendicular vector. I realized now that it is the vector that when dotted with the original it =0.

Reflections:
I realize this is a very shitty blog, but I just got done with my consulting project a little while ago and realized I still had to blog.

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