Re: How do I store Symbolic matrix?

[Colin Macdonald]

On 2018-11-22 1:48 p.m., r1f1 wrote:
>    MatRot(:,:,i) = [[cos(theta(1,i)), -cos(alpha(1,i))*sin(theta(1,i)),
> sin(alpha(1,i))*sin(theta(1,i)), a(1,i)*cos(theta(1,i))];
>            [sin(theta(1,i)), cos(alpha(1,i))*cos(theta(1,i)),
> -sin(alpha(1,i))*cos(theta(1,i)), a(1,i)*sin(theta(1,i))];
>            [0, sin(alpha(1,i)), cos(alpha(1,i)), d(1,i)];
>            [0, 0, 0, 1]];

This is unfortunately a well-known bug.  Replace that last row with

[sym(0), 0, 0, 1]];

and it will work.  This is a bug in the Octave interpreter:

https://savannah.gnu.org/bugs/?42152

Colin