What's the difference between tf.placeholder and tf.Variable?

Question

I\'m a newbie to TensorFlow. I\'m confused about the difference between tf.placeholder and tf.Variable. In my view, tf.placeholder is

Answer 1

Tensorflow uses three types of containers to store/execute the process

1. Constants :Constants holds the typical data.

2. variables: Data values will be changed, with respective the functions such as cost_function..

3. placeholders: Training/Testing data will be passed in to the graph.