LSTM Intuition C5W1 ASSIGNMENT 1

In an LSTM, what does a signify and what does c signify?

What do each of the two mean?

What is the difference between the two?

ā€˜aā€™ and ā€˜cā€™ are presented in the Week 1 lectures on the GRU and LSTM.

First see the GRU video (specifically from time mark 2:20 through 3:15).
Then review the LSTM video.