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	A question about forming functions.  Suppose I create a series, using

	a=Normal[Series[Sin[x],{x,0,5}]]

	giving a = x - x^3/3! + x^5/5!.

	I now want to use a to create a function of x, which, functionally,
	is

	f[x_]:=a.

	This will not work in practice.  Is there a way to do this?  For
	something short, as in this example, I could just as well type 
	the expression

	f[x_]:= x - x^3/3! + x^5/5!

	and everything would work fine.

	What procedure would allow me to create the series and convert it
	to a function of the variable?

	-r. kline
	rvk at blink.att.com






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