A symmetric n × n real matrix M is said to be positive semi-definite if the scalar zTMz is strictly non-negative for every non-zero column vector z of n real numbers.
zT denotes the transpose of z.
A symmetric n × n real matrix M is said to be positive semi-definite if the scalar zTMz is strictly non-negative for every non-zero column vector z of n real numbers.
zT denotes the transpose of z.