The TF function tf.range when given two arguments tf.range(start, limit) creates a vector of integers starting at start and going up to (but not including) limit. Unless the named variable delta is...

The TF function tf.range when given two arguments tf.range(start, limit) creates a vector of integers starting at start and going up to (but not including) limit. Unless the named variable delta is set, the integers differ by one. Thus its use in Figure 6.10 produces a list of integers in the range 0 to batch-size. Explain how they combined with the next line of TF to accomplish the transformation in Figure 6.12.