`zher2:`procedure`xHER2`performs the Hermitian rank 2 operation`A := alpha*x*conjg(y') + conjg(alpha)*y*conjg(x') + A`.`ALPHA`is a scalar,`X`and`Y`are`N`element vectors, and`A`is an`N x N`Hermitian matrix.

`zher2:`procedure`xHER2`performs the Hermitian rank 2 operation`A := alpha*x*conjg(y') + conjg(alpha)*y*conjg(x') + A`.`ALPHA`is a scalar,`X`and`Y`are`N`element vectors, and`A`is an`N x N`Hermitian matrix.