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Aproximarea functionalelor liniare

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Introducere<br />

Derivare numerică<br />

Integrare numerică<br />

Cuadraturi adaptive<br />

Cuadraturi . . .<br />

Cuadraturi . . .<br />

Formule . . .<br />

Home Page<br />

Title Page<br />

◭◭ ◮◮<br />

◭ ◮<br />

Page 37 of 58<br />

Go Back<br />

Full Screen<br />

Close<br />

Quit<br />

Se aplică extrapolarea Richardson ¸si acestor valori. În general<br />

dacă f ∈ C2n+2 [a, b], atunci pentru k = 1, n putem scrie<br />

⎡<br />

⎤<br />

b<br />

a<br />

f(x)dx = hk<br />

2<br />

+<br />

k<br />

i=1<br />

unde Ki nu depinde de hk.<br />

⎣f(a) + f(b) + 2<br />

Kih 2i<br />

k<br />

+ O(h2k+2<br />

k ),<br />

2k−1 −1<br />

i=1<br />

f(a + ihk) ⎦<br />

(29)

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