search for: arguemetn

Dear People, I need to make a label which both contains math notation as well as substitutes a value for an object. In the following label, len and theta are one dim variables, and I am substituting their values appropriately. This label looks fine except that I want the greek symbol for theta to appear instead of the word `theta'. How can I do so most easily? I don't understand the

...; thing[[3]] > t1 * ")." > > mode(thing[[2]]) > [1] "call" > > mode(thing[[3]]) > [1] "call" > > thing[[2]][[1]] > == > > thing[[3]][[1]] > * > > So it is a call to ==, with two arguments, each itself a call. The first > arguemetn is also a call to == and the second is a call to *. And so on in > a tree structure. This is very interesting. I had convinced myself that an expression could not become a call unless created explicitly by call, because it could not know out of all the possible call structures which one to turn...