HP 49g+ User Manual page 659

As additional programming exercises, and to try the keystroke sequences
listed above, we present herein three programs for creating or manipulating
lists. The program names and listings are as follows:
LISC:
« «
→
n x 1 n FOR j x NEXT n
CRLST:
« «
→
st en df st en FOR
» »
→
LIST
CLIST:
«
REVLIST DUP DUP SIZE 'n' STO ΣLIST SWAP TAIL DUP SIZE 1 - 1
SWAP FOR j DUP ΣLIST SWAP TAIL NEXT 1 GET n
»
PURGE
The operation of these programs is as follows:
(1) LISC: creates a list of n elements all equals to a constant c.
Operation: enter n, enter c, press @LISC
Example: 5 ` 6.5 ` @LISC creates the list: {6.5 6.5 6.5 6.5 6.5}
(2) CRLST: creates a list of numbers from n
{n , n +∆n, n1+2⋅∆n, ... n
1 1
Operation: enter n , enter n
1
Example: .5 `3.5 `.5 ` @CRLST produces: {0.5 1 1.5 2 2.5 3 3.5}
(3) CLIST: creates a list with cumulative sums of the elements, i.e., if the
original list is {x x
1 2
{ x
1
Operation: place the original list in level 1, press @CLIST.
Example: {1 2 3 4 5} `@CLIST produces {1 3 6 10 15}.
» »
LIST
j j df STEP en st - df / FLOOR 1 +
to n
1
+N⋅∆n }, where N=floor((n
1
, enter ∆n, press @CRLST
2
x ... x }, then CLIST creates the list:
3 N
, x + x , x + x + x ,...,
1 2 1 2 3
LIST REVLIST 'n'
with increment ∆n, i.e.,
2
-n )/∆n)+1.
2 1
N
∑
x }
i
i = 1
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