Hp 49g+ User Manual download pdf (Page 659)

100

101

Page 21-14

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 LIST » »

CRLST:

→ st en df « st en FOR j j df STEP en st - df / FLOOR 1 +

→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 LIST REVLIST '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

to n

with increment ∆n, i.e.,

, n

+∆n, n1+2⋅∆n, … n

+N⋅∆n }, where N=floor((n

-n

)/∆n)+1.

Operation: enter n

, enter n

, enter ∆n, press @CRLST

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

}, then CLIST creates the list:

},...,,,{

321211

∑

+++

xxxxxxx

Operation: place the original list in level 1, press @CLIST.

Example: {1 2 3 4 5} `@CLIST produces {1 3 6 10 15}.

1 2 ... 654 655 656 657 658 659 660 661 662 663 664 ... 861 862

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Hp 49g+ User Manual Page 659

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