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#1 2015-11-29 08:06:22

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

3 × 3 Matrix

Hi. I'd like to know how to find the inverse of a
3 × 3 Matrix.
Things like finding the adjoint matrix and the determinant of a 3 × 3 Matrix.

Many thanks in advance.


Only a friend tells you your face is dirty.

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#2 2015-11-29 11:41:11

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

Re: 3 × 3 Matrix


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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#3 2015-12-05 00:55:25

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: 3 × 3 Matrix

Thanks bobbym. The information is indeed helpful. Thanks.



How do we actually apply the study of Matrices in practical life. I am only wondering. Thanks.


Only a friend tells you your face is dirty.

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#4 2015-12-05 03:07:13

Bob
Administrator
Registered: 2010-06-20
Posts: 10,053

Re: 3 × 3 Matrix


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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#5 2015-12-06 03:34:46

math9maniac
Member
From: Tema
Registered: 2015-03-30
Posts: 443

Re: 3 × 3 Matrix

Gracías Bob. I found the answer.


Only a friend tells you your face is dirty.

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