I am curious to know the role and meaning of the word ''about'' in this sentence:
The outcome of this example gives an intuitive impression of what about to expect if we turn from our special function to an arbitrary one, as we shall do next.
[ ''Advanced Engineering mathematics'' by ''Erwin Kreyszig'' 10th ed Page 511] This is the meaning that the dictionary said:
be about to do something if someone is about to do something, or if something is about to happen, they will do it or it will happen very soon: • We were just about to leave when Jerry arrived. • Work was about to start on a new factory building.
In my opinion, if this is the intended meaning, ''we are'' should have been removed from this sentence, that is, the original sentence should have been like this:
The outcome of this example gives an intuitive impression of what we are about to expect if we turn from our special function to an arbitrary one, as we shall do next.
Is this the meaning intended by the author?