18.09.2015 Views

Rekker Konvergenstester og Feilestimat

Rekker, Konvergenstester og Feilestimat - NTNU

Rekker, Konvergenstester og Feilestimat - NTNU

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

<strong>Feilestimat</strong><br />

Introduksjon<br />

Følger<br />

<strong>Rekker</strong><br />

Potensrekker<br />

Taylorrekker<br />

<strong>Feilestimat</strong><br />

f (x) =<br />

∞∑<br />

c n (x − a) n , P N (x) =<br />

n=0<br />

<strong>Feilestimat</strong> for alternerende rekke<br />

Taylors Formel<br />

N∑<br />

c n (x − a) n<br />

n=0<br />

|f (x) − P N (x)| ≤ |c N+1 (x − a) N+1 |<br />

Hvis f (x) er en Taylorrekke, c n = f (n) (a)<br />

n!<br />

, så finnes en c mellom a<br />

<strong>og</strong> x slik at<br />

|f (x) − P N (x)| =<br />

f (N+1) ∣<br />

(c) ∣∣∣<br />

∣ (N + 1)! (x − a)N+1 .<br />

<strong>Rekker</strong>, <strong>Konvergenstester</strong> <strong>og</strong> <strong>Feilestimat</strong>

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!