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.dsy:it. : Powered by vBulletin version 2.3.1 .dsy:it. > Didattica > Corsi G - M > Matematica del discreto > Classi d'equivalenza
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Deckard
.illuminato.

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Originally posted by candy
ultimissima domanda!
una matrice di incidenza di una relazione transitiva è tutta riempita con 1 ?!


No! devi controllare che r(i,j)*r(j,k)<=r(i,k) ovvero se in posizione 1,2 c'è uno e in posizione 2,3 c'è 0, non c'è bisogno che ci sia un uno in posizione 1,3; però se s'era uno in 1,2 e uno in 2,3 anche in 1,3 ci doveva essere un uno; comunque è molto più semplice trascrivere la R in forma normale e vederla da lì.

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And all those moments will be lost in time, like tears in rain...

16-11-2008 19:55
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ViPah
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a b c
a 0 1 1
b 0 0 1
c 0 0 0


dovrebbe essere cosi! Non fidarti troppo....aspetto conferme!

16-11-2008 20:12
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ViPah
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deckard dimmi che la mia tabellina è giusta :(

16-11-2008 20:13
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ViPah
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considerando transitività tra (a,b) (bc) (ca)


ops c'era l'edit :birrozza::pc::wall::wall::wall: scusate post multiplo:sedere:

16-11-2008 20:16
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candy
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si è giusta. è verificata la transitività.
NON è transitiva
E' antisimmetrica.

Non fidarti troppo di me! aspettiamo il parere anche di qualcun'altro!!!

16-11-2008 20:21
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Emily89
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In bocca al lupo a tutti domani, ci becchiamo in aula V6 (per i cognomi fino alla N XD)

16-11-2008 22:11
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