Recent content by BOS200011

  1. B

    Graduate Solving a Puzzling Problem: No A Exists for Symmetric Matrix B

    1 2 2 3 I did out the product of ATA and came up with this matrix B that couldn't be written as such. Am I correct?
  2. B

    Graduate Solving a Puzzling Problem: No A Exists for Symmetric Matrix B

    Give an example of a 2X2 symmetric matrix B that cannot be written as B = ATA. Give an explanation as to why no such A exists for the matrix B you have given. I know that the product ATA is a symmetric matrix, but how could there be no such A that exists for some matrix B? I'm really...