Tensorflow python : Accessing individual elements in a tensor

Question

This question is with respect to accessing individual elements in a tensor, say [[1,2,3]]. I need to access the inner element [1,2,3] (This can be performed using .eval() or

Answer 1

I suspect it's the rest of the computation that takes time, rather than accessing one element.

Also the result might require a copy from whatever memory is stored in, so if it's on the graphics card it will need to be copied back to RAM first and then you get access to your element. If this is the case you might skip it by adding an tensorflow operation to take the first element, and only return that.