HP 50g User Manual page 103

Examples of application of these functions in ALG mode are shown next:
SORT and REVLIST can be combined to sort a list in decreasing order:
If you are working in RPN mode, enter the list onto the stack and then
select the operation you want. For example, to calculate the increment
between consecutive elements in list L3, press:
l3`!´˜˜#OK# #OK#
This places L3 onto the stack and then selects the LIST operation from the
MTH menu.
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