manual:chapter6:lists:cmd_revlist

Synopsis


Reverse the order of elements in a list

Stack Diagram


Input Stack Output Stack
L Lreversed
Level 1 Level 1

Legend

Keyword type Command
Parallel list processing capabilities Group 2 Commands that must use DOLIST to parallel process
Affected by flags None

Description


The REVLIST command reverses the order of elements in a list. In addition with the SORT command it can be used to sort a list in descending order.

Compatibility


REVLIST is fully equivalent to its userRPL counterpart.

Usage


Input

4:                                      
3:                                      
2:                                      
1:                      { 5 1 4 3.1415 }
…………………………………………………………………………………………………………
REVLIST                                 


Output

4:                                      
3:                                      
2:                                      
1:                      { 3.1415 4 1 5 }
…………………………………………………………………………………………………………
                                        

Related Commands


Operations with Lists 15 2 NEW

Command Short Description
→LIST Assemble a list from its elements
LIST→ Split a list into its elements
DOLIST Do a procedure with elements of lists CHANGED
DOSUBS Do a procedure on a subset of a list CHANGED
MAP Do a procedure on each element of a list, recursively
MAPLIST→ Do a procedure on each element recursively, return individual elements NEW
STREAM Do a procedure on consecutive elements of a list
ΔLIST First differences on the elements of a list
ΣLIST Sum of all elements in a list CHANGED
ΠLIST Product of all elements in a list CHANGED
ADD Concatenate lists and/or elements CHANGED
SORT Sort elements in a list
REVLIST Reverse the order of elements in a list
ADDROT Add elements to a list, keep only the last N elements NEW
SEQ Assemble a list from results of sequential procedure
  • manual/chapter6/lists/cmd_revlist.txt
  • Last modified: 2021/10/03 14:54
  • by jojo1973