
#1
Mar511, 05:10 PM

P: 3

Looking over a proof of something, I was confused at this step:
We end up with: R[tex]^{T}[/tex] R = I (the identity matrix) This must mean that R[tex]^{1}[/tex] = R[tex]^{T}[/tex] This is confusing me because I know that A A[tex]^{1}[/tex] = I , but in the R case the transpose is on the left side instead of the right, and it seems to me that it matters what order the matrices are multiplied. 


Register to reply 
Related Discussions  
Quick matrix question  Calculus & Beyond Homework  3  
Quick matrix question  Calculus & Beyond Homework  8  
Quick question about matrix operations.  Calculus & Beyond Homework  5  
Quick Question: Matrix added to Differential  Calculus & Beyond Homework  8  
[SOLVED] Quick Question: Is this matrix an orthogonal projection?  Introductory Physics Homework  2 