HP 48gII hp 48gII_user's manual_English_E_HDPMSG48E67_V2.pdf - Page 663

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 →LIST » » j j df STEP en st - df / FLOOR 1 + 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 n1 to n2 with increment ∆n, i.e., {n1, n1+∆n, n1+2⋅∆n, ... n1+N⋅∆n }, where N=floor((n2-n1)/∆n)+1. Operation: enter n1, enter n2, 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 {x1 x2 x3 ... xN}, then CLIST creates the list: N ∑ {x1, x1 + x2 , x1 + x2 + x3,..., xi} i=1 Operation: place the original list in level 1, press @CLIST. Example: {1 2 3 4 5} `@CLIST produces {1 3 6 10 15}. Page 21-14