Question

Where was double recursion explained? I Don't quite get the solution for Quiz 1 problem 3

Answer 1

http://dpaste.com/1343784/ <--- that problem?

Answer 2

Really sorry about that, I meant problem 3. which is http://dpaste.com/1344907/

Answer 3

2011 6.00sc?

it probably wasn't explained - tho' the effect of that function looks familiar - did you watch all the lectures?

you can play with it on pythontutor.com - http://tinyurl.com/l26px4e

just adding a print statement helps http://dpaste.com/1345029/

Answer 4

wow didn't know anything like pythontutor existed. Thanks! i'll probably figure it out eventually if i mess with that.

Answer 5

looks like it is meant to scramble the text
the inner function is always evaluated first - everytime you recurse you add a function onto the call stack - it would be nice to have an explanation of its intent
maybe just to make our head explode