SAP智力题 任一个整数变任一个整数

http://forumsa.sdn.sap.com/thread.jspa?messageID=8626179&
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Present a computation whose result is any given integer M, being a composition of commonly used mathematical functions and field operators (including + - * / ^ ! sin cos tg ctg sqt ln log exp arcsin arccos arctg arcctg) , but using only one constant, an any given interger N.