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Matematika 4B - Katedra matematiky FEL ČVUT

Matematika 4B - Katedra matematiky FEL ČVUT

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=<br />

∞<br />

−∞<br />

z<br />

−∞<br />

<br />

f(x) g(v − x) dv dx =<br />

=<br />

z<br />

−∞<br />

∞<br />

<br />

f(x)g(v − x) dx<br />

−∞<br />

<br />

hustota h(v)<br />

<br />

Závěr: Hustota součtu X + Y je funkce<br />

h(y) =<br />

∞<br />

−∞<br />

f(x)g(y − x) dx .<br />

Terminologie : funkce h je konvolutivní součin funkcí<br />

f a g.<br />

134<br />

dv

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