Why? I don't understand this. Does it matter from which book you learn a subject? I'm studying CS in Germany,
and while I have bought some textbooks, I never *needed* to. You can get by with the library, the lecture slides, your own notes, and looking stuff up on the internet. The professors tend to hand out exercise sheets or put them on their website, so you don't depend on textbooks for that either. What makes the situation in the US so different?
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Why? I don't understand this. Does it matter from which book you learn a subject? I'm studying CS in Germany, and while I have bought some textbooks, I never *needed* to. You can get by with the library, the lecture slides, your own notes, and looking stuff up on the internet. The professors tend to hand out exercise sheets or put them on their website, so you don't depend on textbooks for that either. What makes the situation in the US so different?
No, it isn't a special case.
sub foobar(&) { my $f = shift; $f->(); }
foobar { print "Hello World!"; };