# Thread: matrix algebra shortcut methods

1. ## matrix algebra shortcut methods

I want to know the tricks/shortcuts to find,
Rank,
eigen values,
inverse,
determinant,

of a matrix, ....... I know such type of tricks/shortcuts exists but what they are ?

Thanks

2. No shortcuts, only theory!

3. Oh not at all the shortcuts exsists - I have seen it.

4. Originally Posted by aashishmath
Oh not at all the shortcuts exsists - I have seen it.
Can you explain what you mean by a shortcut and give an example? (e.g. do you mean Gaussian elimination?)

5. $A^{-1} = \left[\begin{array}{ccc} a&b \\ c&d\end{array}\right]^{-1}=\frac{1}{ad-bc}\left[\begin{array}{ccc} d&-b \\ -c&a\end{array}\right]$

I can show you how to do all those very quickly in the TI also.

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# tricks to solve rank of matrix

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