I would like to be able to compute the eigenvalues of the
matrix
A : matrix([-lambda[1],lambda[1]],[mu[1],-mu[1]])
using eigenvalues(). Maxima reports an error:
Maxima encountered a Lisp error:
Type-error in KERNEL::OBJECT-NOT-LIST-ERROR-HANDLER: 1 is
not of type LIST
Now I am using the array lambda purely for aesthetic (nice
display) purposes, in the TeXmacs front end. That is, I
don't care about the fact that lambda[2] comes after
lambda[1], etc. And I have another matrix
B : matrix([-lambda[2],lambda[2]],[mu[2],-mu[2]])
that uses related notation. Is there some way to make
maxima treat lambda and mu purely as symbols?
Or is there some other way to achieve subscripting?
Kostas