I can't solve this exercise,please help me.
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I searched some math sites. It seems to me that there is no elegant solution. Your problem is based on something called the "left factorial". we define,
Where, is the nearest interger function.
Hi Hckr: I don't get it. 4!/e rounds to 9, and 1! +2! + 3! = 9. Yea! 1! + 2! = 3, but 3! / e rounds to 2. 1! + 2! + 3! + 4! = 33, but 5!/e rounds to 44. Thanks in advance, Rich B.
I'm not entirely sure if this shortens anything...
We have a number such that it can be rewritten as
I can simplify further, but I'll let you guys decide the best method...
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