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ID number:603813
 
Author:
Evaluation:
Published: 08.10.2007.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Statistiskos datus var aproksimēt ar dažādiem polinomiem, piemērām,
y1(x) = a* x 2 + b* x + c;
y2(x) = a*x3+b* x 2 + c* x + d;
y3(x) = a*x3 + b*x + d/x;
y4(x) = a*x2 +b*exp(x) + c/x; utt.
Šajā gadījumā, lai aprēķinātu a, b, c, d koeficientu vērtības, jāsastāda polinomu
matricu F(x) un ar funkciju linfit(...,...,...) jāaprēķina koeficientu matrica n.
= Σni*F(x).
Tad aproksimācijas funkcija būs y(x)

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