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Exercise

& and | (2)

Like relational operators, logical operators work perfectly fine with vectors and matrices.

Both the vectors linkedin and facebook are available again. Also a matrix - views - has been defined; its first and second row correspond to the linkedin and facebook vectors, respectively. Ready for some advanced queries to gain more insights into your social outreach?

Instructions

100 XP
  • When did LinkedIn views exceed 10 and did Facebook views fail to reach 10 for a particular day? Use the linkedin and facebook vectors.
  • When were one or both of your LinkedIn and Facebook profiles visited at least 12 times?
  • When is the views matrix equal to a number between 11 and 14, excluding 11 and including 14?