Re: Hello!Every mathmatics wizard
- From: Virgil <virgil@xxxxxxxxxxx>
- Date: Tue, 24 Oct 2006 23:43:13 -0600
In article <1161752986.181196.254270@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
kylincn@xxxxxxxxx wrote:
Hello everybody!
I am puzzling with a function question,plz help me.
The question is that:
X={1,3,6,2,5}
Y={4,8,2,9,3}
Z={3,6,4,6,4}
does the function f(x,y)=Z exist? What's this?
Thank you very much
Han
If you mean a function such that
f(1,4) = 3, f(3,8)=6, f(6,2) = 4, f(2,9) = 6 and f(5,3) = 4,
then yes.
Actually one can give z as either a polynomial function in x only or as
a polynomial function in y only, either with rational coefficients.
E.g., g(x) = (-3*x^4 + 68*x^3 - 513*x^2 + 1468*x - 660)/120
.
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