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- Path: sparky!uunet!portal!kadath!hico2!allan
- From: allan@hico2.westmark.com (Allan Kugel)
- Newsgroups: sci.math
- Subject: turning data points into a continuous function
- Keywords: spline? function math
- Message-ID: <Brt70p.3Dx@hico2.westmark.com>
- Date: Wed, 22 Jul 1992 21:14:46 GMT
- Reply-To: allan@hico2.westmark.com
- Followup-To: poster
- Lines: 30
-
- Well, some parts of math I never learned about.
-
- I'd like to generate a function f(x)
- given evenly-sized intervals x1 ... xn
- and values y1 ... yn.
-
- s.t.
-
- Integral from x sub i-1 to x sub i of f(x) = (y sub i)
- (I'd like the volume under the curve between i-1 and i
- to be equal to a cooresponding volume ( 1 * y sub i)
- that I am given.)
-
- f(x) over the interval 0 to n is continuous
- f'(x) over the interval 0 to n is continuous
- and maybe f''(x) over the interval 0 to n is continous.
-
- the LENGTH of the function line over this interval is minimized
-
- (and, just to make things tricker, I'm going to want to integrate
- this function later)
-
- Does anybody out there know how to solve this kind of problem?
- I don't even know what branch of math to look at.
-
- ( Reply-by-email-as-we-don't-normally-get-this-group-here,)
-
- Thanx in advance,
- Allan Kugel
- allan@hico2.westmark.com
-