proc Transpose(M, R, C, N);     \Transpose matrix M to N
int  M, R, C, N;                \rows and columns
int  I, J;
[for I:= 0 to R-1 do
    for J:= 0 to C-1 do
        N(J,I):= M(I,J);
];

proc ShowMat(M, R, C);          \Display matrix M
int  M, R, C;                   \rows and columns
int  I, J;
[for I:= 0 to R-1 do
    [for J:= 0 to C-1 do
        RlOut(0, float(M(I,J)));
    CrLf(0);
    ];
];

int M, N(4,3);
[M:= [[1, 2, 3, 4],             \3 rows by 4 columns
      [5, 6, 7, 8],
      [9,10,11,12]];
Format(4, 0);
ShowMat(M, 3, 4);
CrLf(0);
Transpose(M, 3, 4, N);
ShowMat(N, 4, 3);
]