HP 50g Graphing Calculator - Manual (Page 263)

Page 8-6
TANH, ATANH SIGN, MANT, XPON
IP, FP FLOOR, CEIL
D R, R D
Examples of functions that use two arguments
The screen shots below show applications of the function % to list arguments.
Function % requires two arguments. The first two examples show cases in which
only one of the two arguments is a list.
The results are lists with the function % distributed according to the list
argument. For example,
%({10, 20, 30},1) = {%(10,1),%(20,1),%(30,1)},
while
%(5,{10,20,30}) = {%(5,10),%(5,20),%(5,30)}
In the following example, both arguments of function % are lists of the same
size. In this case, a term-by-term distribution of the arguments is performed, i.e.,