umount disks

• If 占用
  • df -lh
  • sudo umount /dev/**
  • sudo kill ***

$$\mu_{fg} = \mu_g - \mu_f$$
$$\Sigma_{fg} = \Sigma_f + \Sigma_g$$
$$\mu_{fg}^T \Sigma_{fg}^{-1} \mu_{fg}$$
$$\det(\Sigma_{fg})$$
$$\Sigma_{fg}^{-1}$$
$$\frac{1}{\sqrt{\det(\Sigma_{fg})}}$$
$$\frac{1}{\sqrt{\det(\Sigma_{fg})}}$$