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Forum Maschinenbau Rostock • Thema anzeigen - 23.1
Seite 1 von 1

23.1

BeitragVerfasst: Mi 8. Jun 2011, 10:14
von akku04
huhu hier meine ergebnisse für 23.1:
A^-1:
-2,5 0,5
3,5 -0,5

B^-1:
-1 0 1
-1 1 0
3 -1 -1

und

C^-1:

1 -1 1 -1
0 1 -1 1
0 0 1 -1
0 0 0 1


mein taschenrechner sagt dasselbe, müsste von daher stimmen..

Re: 23.1

BeitragVerfasst: Mi 8. Jun 2011, 16:14
von ifa_alex
Moin!

Hab ich auch raus! ;)

Re: 23.1

BeitragVerfasst: Do 9. Jun 2011, 20:28
von raziel
wie berechnet ihr die inverse ?

Re: 23.1

BeitragVerfasst: So 12. Jun 2011, 11:53
von Marcus
Moin
den Aufgaben widme ich mich grad, sag ich nachher noch was zu...
Nu aber noch ne Frage:
Weiß jemand, wo das Fach von Frau Dr. Antje Kiesel ist, oder wo man es herausbekommt?

Re: 23.1

BeitragVerfasst: So 12. Jun 2011, 12:23
von Rennspargel

Re: 23.1

BeitragVerfasst: So 12. Jun 2011, 13:03
von Marcus
@ Rennspargel
Danke...oh man da muss ich ja zur Ulmenstr. :(

Re: 23.1

BeitragVerfasst: So 12. Jun 2011, 13:44
von Marcus
So hier mal etwas genauer:

23.1.docx
(12.4 KiB) 152-mal heruntergeladen


@raziel
Inverse berechnen:
hast die matrix gegeben und formst die um zur Einheitsmatrix...
die Schritte, die du bei der matrix vornimmst (also 1. zur 2. Zeile addieren usw.), machst du gleichzeitig bei einer Einheitsmatrix...deswegen immer 2 Matrizenwege pro Aufgabe...
hast du deine Matrix zur Einheitsmatrix gemacht, hast du auch die andere Matrix fertig -> diese ist nun die Inverse ;)