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Forum Maschinenbau Rostock • Thema anzeigen - 23.1

23.1

23.1

Beitragvon akku04 » Mi 8. Jun 2011, 10:14

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..
akku04
 
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Registriert: Mi 13. Okt 2010, 13:50

Re: 23.1

Beitragvon ifa_alex » Mi 8. Jun 2011, 16:14

Moin!

Hab ich auch raus! ;)
NO AIRBAG! Wir sterben noch wie echte Männer!
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ifa_alex
 
Beiträge: 51
Registriert: So 28. Nov 2010, 12:48

Re: 23.1

Beitragvon raziel » Do 9. Jun 2011, 20:28

wie berechnet ihr die inverse ?
raziel
 
Beiträge: 92
Registriert: Di 4. Jan 2011, 20:18

Re: 23.1

Beitragvon Marcus » So 12. Jun 2011, 11:53

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?
Marcus
 
Beiträge: 96
Registriert: Do 14. Okt 2010, 15:06

Re: 23.1

Beitragvon Rennspargel » So 12. Jun 2011, 12:23

Rechtschreibfehler dürfen gefunden und behalten werden!
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Rennspargel
 
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Re: 23.1

Beitragvon Marcus » So 12. Jun 2011, 13:03

@ Rennspargel
Danke...oh man da muss ich ja zur Ulmenstr. :(
Marcus
 
Beiträge: 96
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Re: 23.1

Beitragvon Marcus » So 12. Jun 2011, 13:44

So hier mal etwas genauer:

23.1.docx
(12.4 KiB) 141-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 ;)
Marcus
 
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