Hermitian positive-definite matrix
= Hermitian positive-definite matrix
A complex matrix $A$ is Hermitian positive definite when $A^*=A$ and $z^*Az>0$ for every nonzero complex vector $z$.
= Hermitian positive-definite matrix
A complex matrix $A$ is Hermitian positive definite when $A^*=A$ and $z^*Az>0$ for every nonzero complex vector $z$.