      # Matrix Equations

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### #1 fiberoptik

fiberoptik

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Posted 10 November 2004 - 10:39 PM

Hello people, can anyone answer me if the CP can solve matrix equations?
I don?t know how to write the symbols, so i will try to explain.
if i define a matrix (Matrix1 : 2x2 ) with any values , and another (Matrix 2 : 2x2) with x,y,z,w and a 3rd matrix (Matrix 3 : 2x2) with the results. can i do this:

(Matrix 1) x (Matrix 2) = Matrix 3

if it is possible, please explain to me how.

Thanks

### #2 m4x

m4x

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Posted 16 January 2005 - 04:42 PM

Hi there As far as I know CP doesn't have a function to solve matrix equations, but I have written one myself.

mSolve(A, =A^(-1)*B

where A and B are matrices. If you put your Martix 1 instead of A and Matrix 3 instead of B you'll get the solution martix 2 It works great when you want to solve a system of linear equations given in a matrix form Ax=B, where A is the matrix of coeficients, x is a column vector of the unknowns and B is a column vector of the right sides of the equations. Hope this solves your problem ### #3 m4x

m4x

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Posted 16 January 2005 - 04:44 PM

It's:
mSolve(A,B)=A^(-1) * B

### #4 fiberoptik

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Posted 16 January 2005 - 07:51 PM

Thanks a lot m4x, i didn't try yey, but i'm shure that it works fine.
Thanks a lot

Regards
fiberoptik

### #5 MCFONG

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Posted 28 January 2005 - 07:44 PM

Actually you can do the AxB = C..
- Go to Main Mode,
- Turn on the Soft keyboard,
- Tap on 2D,
- You see a down arrow at the bottom-middle of the soft keyboard, tap on it,
- You will see the matrix icon.

the top left icon is to add column, the top middle for adding row and the top right is for defining a 2x2 matrix.

cheers, mc

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