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Slika - Shrani.si

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A. Juriˇ<strong>si</strong>ć in V. Batagelj: Verjetnostni račun in statistika 217<br />

✬<br />

✫<br />

. . . Primer: transformacije<br />

Če je f bijektivna z zveznimi parcialnimi odvodi, lahko nadaljujemo<br />

<br />

FU,V (u, v) = p x(u, v), y(u, v) |J(u, v)| du dv,<br />

A(u,v)<br />

kjer je (glej učbenik http://rkb.home.cern.ch/rkb/titleA.html)<br />

J(u, v) =<br />

∂(u, v)<br />

∂(x, y)<br />

⎛<br />

∂u<br />

⎜∂x<br />

= det ⎜<br />

⎝<br />

∂v<br />

∂x<br />

Jacobijeva determinanta (glej http://en.wikipedia.org/wiki/Jacobian<br />

za kakˇsen primer). Za gostoto q(u, v) vektorja (U, V ) dobimo od tu<br />

∂u<br />

∂y<br />

∂v<br />

∂y<br />

⎞<br />

⎟<br />

⎠ .<br />

q(u, v) = p x(u, v), y(u, v) |J(u, v)|.<br />

Univerza v Ljubljani ▲<br />

❙ ▲<br />

▲<br />

▲<br />

● ❙ ▲<br />

▲<br />

☛ ✖<br />

✩<br />

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