Need suggestion about long matrix program

[Amer7]

@Didier Lachieze your program text worked for export, i just didn't know how to c/p hahah. But I don't know the values of matrix" A1:=[[1,2],[3,4]];" matrix A1 should be a calculation of a know Matrix M1..M2.. which values are stored in calculator variables.
This seems to work for export

Code:


//PROGRAM START
EXPORT A1,A2;


EXPORT function1 ()
BEGIN
A1:=M1+M1;
A2:=M1-M1;

END;

But it doesn't import values stored in M1 memory of calculator into the program sto the output variable A1 is 0, and A2 is also 0


Is there a simple code that will let me Use the values stored in M1,M2,M3 matrix memory, and when I execute the program let me see the new matrices values for viewing ?