How would one set up a multispring model in maplesim?

Actually I don't know the exact model I want to try to explore yet, but I was wondering if someone could show an example of, let's say a beam with 4 springs attached offset to one end.  On one end of the beam we inject vibrational frequencies and graph the output on the other end - doesn't matter which end - I imagine we could explore both from both ends.  How could we set that up?

Here is my example picture.

Just a curious question.

Why when some new applications are added to the application center they do not always get inserted at the top of the list? 

I'm creating a table of random math problems for my daughter to print out.  How do I get more columns?

a := rand(1 .. 15):
b := ["+", "-", "x", "/"]:

for i to 15 do
  print(cat(a(),b[rand(1..nops(b))()],a(),"_____")):
  print(``):
end do;

                                  13x4_____

Here is an interesting problem I've pondered every now and then. 

One is lost in a desolate winter landscape with 3 blankets (thin, 2x thin and 3x thin thicknesses).  He can construct a shelter like a teepee with the blankets.  How could he best arrange the blankets to stay the warmest?  I'm sure everyone puts the thickest blanket on top when they make their beds, so would that not the optimal order?  Layer the outside teepee with the thickest...

I know I can use try catch but why doesn't this work?

is(tan((1/2)*Pi) = "Error, (in tan) numeric exception: division by zero")
Error, (in tan) numeric exception: division by zero

It is a string value error that should be true in the test shouldn't it?