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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 />

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Fie f : [a, b] → R integrabilă pe [a, b], Fk(f), k = 0, m informat¸ii<br />

despre f (de regulă funct¸ionale <strong>liniare</strong>) ¸si w : [a, b] → R+ o funct¸ie<br />

pondere integrabilă pe [a, b].<br />

Definit¸ia 10 O formulă de forma<br />

b<br />

a<br />

w(x)f(x)dx = Q(f) + R(f), (17)

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