Thursday, September 13, 2012

2.9-2.11, due on September 14

1.The last section is the confusing one. So the period of a sequence is the length of the segment of that sequence that is repeated? or that generates the rest of the sequence? Or both? And I almost got the matrix thing which helps us break the recurrence code but I'm shaky. So I don't know the vocab. well or how to break it well but I do know how to create a string of bits using a recurrence relation. It's just a formula based on previous values.

2. So...once we have all these numbers what do we do with them? I see that we're doing lots of math to generate these numbers but do they still just map to letters like we've been doing? How do we go from mod 2 to mod 26? I guess my reflection is still misconceptions but they are reflection/connection questions rather than these sections' specific content questions.

Another reflection, wow I'm glad we have computers to do all this! I don't want to. The theory is more interesting. :-)

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