Example of a formula involving a simple function

y*MyFunc(z,3)

Written as an unparsed formula, each token is directly transcribed as follows:

Written as a parsed formula (in reverse Polish), an evaluation order is established first, for example:

y  )  3  ,  z  MyFunc(  *

and this is then transcribed as follows:

Notice that the function arguments are in reverse order, and that a right bracket is used as a delimiter to indicate the end of the argument list. The left bracket indicating the start of the argument list is implied by the XSLP_FUN token.