  \begin{align}
   V_{t+1} &=  \boldsymbol{\beta}_{t} + \alpha_t \cdot \nabla J(\boldsymbol{\beta}_t), \label{first formula} \\
   \boldsymbol{\beta}_{t+1} &= (1-\gamma_t) \cdot  V_{t+1} + \gamma_t \cdot  V_{t},  %\notag
  \end{align}
