055E9 |
NULL{}
|
( → {} )
Pushes a null list to the stack.
|
36ABD |
DUPNULL{}?
|
( {} → {} flag )
|
159006 |
^DUPCKLEN{}
|
( {} → {} #n )
( ob → ob #1 )
Return length of list, or 1 for non-lists.
|
29D18 |
ONE{}N
|
( ob → { ob } )
|
36202 |
TWO{}N
|
( ob1 ob2 → { ob1 ob2 } )
|
36216 |
THREE{}N
|
( ob1 ob2 ob3 → { ob1 ob2 ob3 } )
|
361EE |
#1-{}N
|
( ob1..obn #n+1 → {} )
|
2B42A |
PUTLIST
|
( ob #i {} → {}' )
Replaces object at specified
position. Assumes valid #i.
|
2FC006 |
^INSERT{}N
|
( {} ob # → {}' )
Insert object into list at given position.
The position must be < than length of the
list. If the position is zero, >TCOMP is
used.
|
2FB006 |
^NEXTPext
|
( list → list1 list2 )
Extract in list2 all occurrances of the 1st
object of list, the remaining objects are
stored in list1. list1 = list-list2.
|
2FD006 |
^COMPRIMext
|
( {} → {}' )
Suppress multiple occurrances in the list.
|
15A006 |
^CKCARCOMP
|
( {} → ob1 )
( ob → ob )
Returns first element for lists, or object
itself if it is not a list.
|
2EF5A |
apndvarlst
|
( {} ob → {}' )
Appends ob to list if not already there.
|
0FE006 |
^AppendList
|
( {} ob → {}' )
Equivalent to apndvarlst, but faster.
|
4EB006 |
^prepvarlist
|
( {} ob → {}' )
Adds ob at the beginning of the list if not
present. If ob is in list, move ob to the
beginning of list. Unfortunately moving an
entry does influence the sequence of the rest
of the list unchanged.
|
100006 |
^SortList
|
( L pred → L' )
Sorts list according to give predicate. Pred
is a program that tests two elements and
returns FALSE if the first is to appear
earlier than the second. To sort in numerical
order, for example, the predicate would be a
> test.
|
28A006 |
^PIext
|
( {} → ob )
Returns the product of all elements of the
list.
|
25ED3 |
EqList?
|
( ob → )
Is ob a list of equations? Returns T if ob
is a list of at least two elements, and the
second element is not a list itself.
|