I'm trying to simultaneously solve some differential equations using the Laplace method. Mathcad is able to give me the inverse Laplace, but complains about 't' not being defined, so I am unable to graph it.

Any idea what I can do? _Z and _alpha are not defined anywhere. I'm sure I did the derivation right because three people working independently of me also arrived at the same solutions.

Thanks

x=2

Pi is exactly 3! *runs*

Pi R Squared.


No, Pi R Round lawlawl.

cornbread are square

Looks like a typo on h'2(s).

I think you've got a dot in the callup but not in the definition.

*pukes*

Yeah, in the definition it's h'2 and later it's h'.2.

Hot damn we're awesome.

*High fives Vinny*

Except that mathcad is complaining about the red t and not the h.2. Mathcad works sequentially down the page, so it's throwing a hissy fit on h1 which is called up properly.

I'd like to help on the fix, but I've only just started learning Mathcad.

Mathcad 13 displays the h.2 while you're editing the equation, but returns to the subscript when you're done.

Anyway, after much experimenting today we found out that you have to manually factor the denominator of those equations to get Mathcad to give you a proper deLaplace.

I was having some problems with 13 freaking out about functions of t as well.