Try for some functions

By the way, you stated the range of as but I think you mean

PS: and

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- May 17th 2012, 07:34 AM #1

- May 17th 2012, 07:41 AM #2

- May 17th 2012, 08:41 AM #3

- May 17th 2012, 11:28 AM #4

- May 17th 2012, 11:34 AM #5