I’m really confused about the differences between big O, big Omega, and big Theta notation. I understand that big O is the upper bound and big Omega is the...
Sometimes I see Θ(n) with the strange Θ symbol with something in the middle of it, and sometimes just O(n). Is it just laziness of typing because nobody knows...
I’m looking at the documentation for FileUtils. I’m confused by the following line: FileUtils.cp %w(cgi.rb complex.rb date.rb), '/usr/lib/ruby/1.6' What does the %w mean? Can you point me to the...