Hello,(adsbygoogle = window.adsbygoogle || []).push({});

I'm somewhat confused about the notation in problem 4c of http://www.its.caltech.edu/~hmabuchi/Ph125a/HW1.pdf

In part a, I found the matrix R. I was wondering what was meant by a,b exist in R. My guess is that R in the latter case refers to the set of all real numbers, and that the R in v = a*R + b*R^2 is the matrix R corresponding to the observable r.

Could somebody confirm, or am I totally off?

Also, I'm not sure how to intepret what v is.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Question about notation in Matrix problem

**Physics Forums | Science Articles, Homework Help, Discussion**