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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 517

What does the determinant of square matrix mean and how it works?

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 8,909

Have you given up on inverses?

Bob

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

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**666 bro****Member**- From: Flatland
- Registered: 2019-04-26
- Posts: 517

no, i understood them clearly, please explain what is determinants ?and for inverse of matrices using row operations please post some questions of finding inverses of 3by3 matrices and i will post answers on matrices thread?

"An equation for me has no meaning, unless it expresses a thought of God"- Srinivasa ramanujan

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**Bob****Administrator**- Registered: 2010-06-20
- Posts: 8,909

hi 666bro,

There's a good page on determinants here:

https://www.mathsisfun.com/algebra/matr … inant.html

Do you find the MIF teaching pages useful and easy to understand? When you meet a new topic I think it's always worth looking there first.

Elementary matrix operations and inverses:

I know you want to practise 3 x 3 matrices but I need to know if you have got the method correct for 2 x 2 first. That's why I gave you one to try. When I can see you are good with 2 x 2 I'll be happy to advance to 3 x 3 .

Bob

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

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