# What is the purpose of the arrow $\leftarrow$ in this formula?

What is the purpose of the arrow $$\leftarrow$$ in the formula below?

$$V(S_t) \leftarrow V(S_t) + \alpha \left[ G_t - V(S_t) \right]$$

I presume it's not the same as 'equals'.

I assume this is an iterative function. It means the current $$V(S_t)$$ is the sum of the previous plus some adjustment. The arrow is like an assignment.
vst = vst + alpha * (gt - vst)

So vst will be overwritten.