Grrr, I found another bug...
It seems you can't call a function that takes multiple parameters from inside another function, because the outer function counts all the commas inside its parameter list and spits back an error saying "too many parameters"... so I'll have to tell it to ignore any commas that are inside parentheses in a parameter list, I guess...
Also, the templatizer is rather slow, seeing as it redoes the whole calculation each time it runs an equation, even if all that's changed is the value of a variable... I'll probably have to Cache the results of all my expressions until they fall out of scope, I guess...
Finally, I'd better make it display any errors that are thrown by the various functions and such...
