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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 6 of 58<br />

Go Back<br />

Full Screen<br />

Close<br />

Quit<br />

Putem exprima ipoteza noastră mai explicit în termenii unei<br />

baze date ϕ1, ϕ2, . . . , ϕm a lui Φ ¸si a matricei Gram asociată<br />

<br />

<br />

L1ϕ1 L1ϕ2 <br />

. . . L1ϕm <br />

<br />

L2ϕ1 L2ϕ2<br />

G = [Liϕj] = <br />

. . . L2ϕm <br />

<br />

<br />

. . . . . . . . . . . . ∈ R<br />

<br />

Lmϕ1 Lmϕ2 . . . Lmϕm <br />

m×m . (4)<br />

Cerem ca<br />

det G = 0. (5)<br />

Este u¸sor de văzut că această condit¸ie este independentă de<br />

alegerea particulară a bazei.

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