A aukj May 2010 8 0 May 26, 2010 #1 gram matrix G, defined as G=<x,x>=x'x is always positive semidefinite from this can we say for any matrix x, x'x will always be positive semidefinite.

gram matrix G, defined as G=<x,x>=x'x is always positive semidefinite from this can we say for any matrix x, x'x will always be positive semidefinite.