Need suggestion about long matrix program

[Amer7]

Hi,
I'm not sure what would be the best idea to make this program.

1.) Start i will always have three matrices witch size may vary from issue to issue.
I plan on using the calculator M1, M2, M3 matrix variables
2.) The rest of matrices M4,M5,M6,M7,M8, M9, A1, A2, A3, A4, A5, A6, A7 are different
calculations of matrices M1,M2,M3,M5... etc.
3.) Is there a way that I input into calculator memory M1, M2, M3 matrices, and run the program then have the program save all of the Matrices in Variables M4....A7 so I could view them.
( Because In past I have used the PRINT for Matrix and it's not really good for displaying them. The calculator option of displaying matrix in HOME is excellent for me).

This would be some operations between the matrices

Code:

/// A -M1 P-M2 W-M3

//N matrica M4
M4:=TRN(M1)*M2*M1;
//u matrica M5
M5:=TRN(M1)*M2*M3;
//QX M6
M6:=INV(M5);
//M7 delta
M7:=(-M6)*M5;
/// M8 matrica V
M8:=(M1*M7)+M3;
//M9 omega
M9:=TRN(M8)*M2*M8;
//M0 vf
M0:=(1/5)*M9;
//S0 A1
A1:=SQRT(M0);
//CX A2;
A2:=M6*M0;
//A3 CL
A3:=M0*M2-1;
//QL kappa  A4;
A4:=M1*M6*TRN(M1);
//CL Kapa A5
A5:=A4*M0;
//QV A6
A6:=INV(M2)+(-A4);
//CV A7;
A7:=A6*M0;

Any help is really appreciated.