Re: Function naming
From: N. Silver (mathelp_at_worldnet.att.net)
Date: 11/28/04
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Date: Sun, 28 Nov 2004 16:13:27 GMT
Robin Chapman wrote:
> Darius Blaszijk wrote:
>> I'm doing some study on a particular type of function (in my spare time
>> just for fun). The problem is however that I don't know how these
>> functions are called in English. Could someone provide me with the
>> correct English term and point me perhaps to some more info on
>> this topic?
>> The functions are of the form;
>> y = c0 + c1x1 + c2x2 + c3x1x2 + c4x1^2 + c5x2^2
>> This function has two input variables and has an order of two.
>> The number of variables and order can vary accordingly of course.
The functions are polynomial functions in several variables.
>> Is there a general term for these kind of functions?
> I'd call it "quadratic".
The example you gave is of a quadratic polynomial function,
whose graph is a "quadric surface."
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