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What is this symbol?

  • Thread starter misterau
  • Start date
  • #1
20
0

Homework Statement


http://img40.imageshack.us/img40/6421/57065635.jpg [Broken]

The Attempt at a Solution


I just what to know what the hollow I symbol is?
Is it just
1 0 0
0 1 0
0 0 1
Thank you!
 
Last edited by a moderator:

Answers and Replies

  • #2
1,838
7
Yes, it is the identity matrix.
 

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