Hi, for a package I'm writing (or, more precisely, trying to write), I need to do the following:
Change `:(3 + pi)` into `:(3 + big(pi))` or `:(BigFloat(3) + BigFloat(pi))` Basically I need to apply `BigFloat` to every symbol in the expression. (I believe that it would be sufficient to wrap `MathConst`s in `big`, but converting everything to BigFloat is probably a good idea.) This is my first foray into parsing etc. I'm guessing there's a package that allows me to do this easily -- could someone please point it out? Or how should I go about this? In principle the expressions could be more complicated, e.g. `(3 + pi) * (2.5 - e)` Thanks, David.
