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The following session illustrates how to create lists and
insert/extract entries in lists and tlists.
-->a=33;b=11;c=0;
-->l=list();l(0)=a
l =
l(1)
33.
-->l=list();l(1)=a
l =
l(1)
33.
-->l=list(a);l(2)=b
l =
l(1)
33.
l(2)
11.
-->l=list(a);l(0)=b
l =
l(1)
11.
l(2)
33.
-->l=list(a);l(1)=c
l =
l(1)
0.
-->l=list();l(0)=null()
l =
()
-->l=list();l(1)=null()
l =
()
-->//
-->i='i';
-->l=list(a,list(c,b),i);l(1)=null()
l =
l(1)
l(1)(1)
0.
l(1)(2)
11.
l(2)
i
-->l=list(a,list(c,list(a,c,b),b),'h');
-->l(2)(2)(3)=null()
l =
l(1)
33.
l(2)
l(2)(1)
0.
l(2)(2)
l(2)(2)(1)
33.
l(2)(2)(2)
0.
l(2)(3)
11.
l(3)
h
-->//
-->dts=list(1,tlist(['x';'a';'b'],10,[2 3]));
-->dts(2)('a')
ans =
10.
-->dts(2)('b')(1,2)
ans =
3.
-->[a,b]=dts(2)(['a','b'])
b =
! 2. 3. !
a =
10.
-->//
-->l=list(1,'qwerw',%s)
l =
l(1)
1.
l(2)
qwerw
l(3)
s
-->l(1)='Changed'
l =
l(1)
Changed
l(2)
qwerw
l(3)
s
-->l(0)='Added'
l =
l(1)
Added
l(2)
Changed
l(3)
qwerw
l(4)
s
-->l(6)=['one more';'added']
l =
l(1)
Added
l(2)
Changed
l(3)
qwerw
l(4)
s
l(5)
Undefined
l(6)
!one more !
! !
!added !
-->//
-->dts=list(1,tlist(['x';'a';'b'],10,[2 3]));
-->dts(2)('a')=33
dts =
dts(1)
1.
dts(2)
dts(2)(1)
!x !
! !
!a !
! !
!b !
dts(2)(2)
33.
dts(2)(3)
! 2. 3. !
-->dts(2)('b')(1,2)=-100
dts =
dts(1)
1.
dts(2)
dts(2)(1)
!x !
! !
!a !
! !
!b !
dts(2)(2)
33.
dts(2)(3)
! 2. - 100. !
-->//
-->l=list(1,'qwerw',%s)
l =
l(1)
1.
l(2)
qwerw
l(3)
s
-->l(1)
ans =
1.
-->[a,b]=l([3 2])
b =
qwerw
a =
s
-->l($)
ans =
s
-->//
-->L=list(33,list(l,33))
L =
L(1)
33.
L(2)
L(2)(1)
L(2)(1)(1)
1.
L(2)(1)(2)
qwerw
L(2)(1)(3)
s
L(2)(2)
33.
Next: 3. Programming
Up: 2.12 Indexing
Previous: 2.12.1 Indexing in matrices
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