A recurrence problem that i don't understand =(


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Hello all.. i'm working on recurrence problems right now and this one's got me scratching my head:

Fine a recurrence relation for the number of ways to climb n stairs if the person climbing the stairs can take one stair or two stairs at a time.

I know the relationship is something like an = an-1 + an-2

What I don't understand is why ??? arrghh I wanna finish this so I can go outside and play!!!

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:rolleyes: Read 'Statistics Made Simple'

Why would you want to go outside and play when you can sit indoors and rot away figuring out obscure probablities that will never apply to Real Life ? :laugh:

And personally, I prefer to use the elevator rather than climb stairs :wacko:

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