HP 50g Graphing Calculator - Manual (Page 182)

Page 5-5
FACTOR: LNCOLLECT:
LIN: PARTFRAC:
SOLVE: SUBST:
TEXPAND:
Note: Recall that, to use these, or any other functions in the RPN mode,
you must enter the argument first, and then the function. For example, the
example for TEXPAND, in RPN mode will be set up as:
³„¸+~x+~y`
At this point, select function TEXPAND from menu ALG (or directly from the
catalog ‚N), to complete the operation.