Stacking Columns of a matrix in Maxima

Question

I want to stack columns of a matrix in Maxima. Example ``` b3: matrix( [1,0,0], [-a21,1,0], [-a31,-a32,1] ); ``` I wonder how to stack the columns of this matrix. Thanks in advance for your help and time.

Accepted Answer

Here is an naive way of doing it:

```
c : transpose( b3 );
transpose( append( c[0], c[1], c[2] ) );
```

and here is a more general way:

```
apply(append, map(lambda([r], transpose(b3)[r]), makelist(i,i,3)));
```

Stacking Columns of a matrix in Maxima

Solution

Problem