Suppose I have the element of some structure (say a vector), which is an
expression.
e.g., [N=26.5]
I want to 'grab' the rhs of the expression (i.e., the number 26.5), but
can't figure out how. Suppose the preceding is assigned to Y
I thought the following would work
rhs(Y);
but it keeps returning 0.
I'm obviously missing something.
Thanks in advance for pointers to the obvious.