Richard Hennessy wrote:
> Actually other CAS's can work with unitstep and diracdelta so if they
> can get it right so can I.
>
> Rich
There is already a "delta" function defined in the laplace package. Your
delta function should be unified with that one. Since delta is a
relatively general word, perhaps the laplace one should be renamed
"diracdelta"
Also, I believe that the orthogonal polynomial package has a "unit_step"
function, though I don't know whether its left-continuous nature is
compatible with what you need.
Thanks for working on the piecewise problem. It's a VERY useful thing in
engineering.