When I load the Physics package - with (Physics)- I get the following error message:

r level initialization for package `Physics' failed: Heaviside not defined for non-real values

Later on while executing some code there may pop a plethora of other errors with apparently no relation to the running code. No problem for p.e. PDETools. Ihave loaded the 348 physics upgrade but it happened also with 347. Any Idea what it is and what to do?

Is there information available about the improvements made up to the recent version of the Maple Physics Package?

The following product

(product(mu^x[i]/factorial(x[i]), i = 1 .. n))

does not simplify to the most obvious form whatever I try

mu^(sum(x[i], i = 1 .. n))/(product(factorial(x[i]), i = 1 .. n))

What can it be?

The following command works fine until you use it in the combination conjugate and diff.

example in Physics:

declare(phi(X));

diff(conjugate(phi(X)),x1);

phi(X) should now appear as phi with index x1 and a bar only, but

it comes as phi(X) x1 , the declare command is not effective. Non conjugate works fine.

Any idea - thanks in advance