Positive semi-definite


### 양의 준정부호
[Eigenvalue](https://texonom.com/eigenvalue-4dff6b022dd94d19b3791eef258bf9c5) is always bigger than 0
### Positive semi-definites
|Title|
|:-:|
|[Symmetric positive semi-definite](https://texonom.com/symmetric-positive-semi-definite-16ce5c2766e94f3d803ea6ddf2742660)|









