I am attempting to use document blocks to hide the Maple code for an interactive document and I'm encountering an unbelievably frustrating issue: if I create a new document block and suppress the output of the function calls therein with a colon, when I collapse the document block, the function calls are not hidden at all, but are displayed in a continuous line. If I do not supress the output, once I collapse the block, only the output is visible (which may be desirable except that I am doing things like loading packages, storing plot3d and plot variables, etc., and I DO NOT WANT THE OUTPUT VISIBLE).

Is there a way to create periodic piecewise functions in Maple 10 for use in solving differential equations with periodic forcing functions?

I've been trying to find information about this apparently elusive (or perhaps obscure) topic without a lot of luck. I was curious if anyone had ever heard of a technique for solving an nth-order nonhomogeneous linear ODE with constant coefficients by means of Duhamel's Convolution Principle. The guy who taught this technique to me didn't believe in using textbooks (or staying in accordance with predefined curricula) and he basically just taught whatever he wanted. He essentially claimed that any nth-order nonhomogeneous linear ODE with constant coefficients could be solved by first solving the associated homogeneous equation, and then, writing a new function (he usually called it theta(t)) using the same form as the solution to the associated homogeneous equation but with initial conditions such that, for t = 0, theta of t, theta prime of t, theta double prime of t, etc., all equaled 0, except for the final condition (theta^(n-1)(t)) which equaled 1.