i still dont understand

J

John W Kennedy

why is it i -1 and not i + 1 if i have to count up

You said "recursion".

--
John W. Kennedy
"You can, if you wish, class all science-fiction together; but it is
about as perceptive as classing the works of Ballantyne, Conrad and W.
W. Jacobs together as the 'sea-story' and then criticizing _that_."
-- C. S. Lewis. "An Experiment in Criticism"
 

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