Yes I thought the same, but my matrix M1 := matrix(10, 1, []) is small and it does not work?!?!?

Yes I thought the same, but my matrix M1 := matrix(10, 1, []) is small and it does not work?!?!?

with(LinearAlgebra);
A := matrix(20, 20, []);
B := matrix(20, 20, []);
for n to 20 do
.....
function determing values for A and B
.....
end do
Then I type A;
but I just get a blue a and not the "summary overview"
What to do?

with(LinearAlgebra);
A := matrix(20, 20, []);
B := matrix(20, 20, []);
for n to 20 do
.....
function determing values for A and B
.....
end do
Then I type A;
but I just get a blue a and not the "summary overview"
What to do?

Yes I thought the same, but it just gives me back a blue A. So do you know a comand that shows me the summary overview of the matrix A

Yes I thought the same, but it just gives me back a blue A. So do you know a comand that shows me the summary overview of the matrix A

Yes I thought the same, but it just gives me back a blue A. So do you know a comand that shows me the summary overview of the matrix A?

Yes I thought the same, but it just gives me back a blue A. So do you know a comand that shows me the summary overview of the matrix A?

Thanks! Sorry, my question was much easier. I just want to know what to do when I already have a matric A and I want to get this summary:
[ 1000 x 1000 Matrix ]
A := [ Data Type: anything ]
[ Storage: rectangular ]
[ Order: Fortran_order ]
How can I get this summary?

Thanks! Sorry, my question was much easier. I just want to know what to do when I already have a matric A and I want to get this summary:
[ 1000 x 1000 Matrix ]
A := [ Data Type: anything ]
[ Storage: rectangular ]
[ Order: Fortran_order ]
How can I get this summary?

> whattype(B);
symbol
> matrixplot(B, axes = boxed);
Error, (in plots/matrixplot) invalid input: `convert/Matrix` expects its 1st argument, M, to be of type {Matrix, Vector, Array, array, list}, but received B
Unfortunately it does not work. I assigned to B[n,m] n=17 and m=17 in a loop so 17*17 values....

> whattype(B);
symbol
> matrixplot(B, axes = boxed);
Error, (in plots/matrixplot) invalid input: `convert/Matrix` expects its 1st argument, M, to be of type {Matrix, Vector, Array, array, list}, but received B
Unfortunately it does not work. I assigned to B[n,m] n=17 and m=17 in a loop so 17*17 values....

Yes that can be! How to change it from a symbol to a matrix?

Yes that can be! How to change it from a symbol to a matrix?