TI 84 Plus CE, HP 42S/DM42: Pairs of Multiples
Introduction
The program MULPAIRS displays all the multiplication pairs of a positive integer. For example, for n = 15:
15 = 1 * 15
15 = 3 * 5
The TI-84 Plus CE version gives a list of pairs ( first element * second element, third element * fourth element, etc). ( {1, 15, 3, 5})
The HP 42S version will display pairs on the display, one pair at a time.
TI-84 Plus CE Program: MULPAIRS
"2019-10-26 EWS"
Input "INTEGER N? ",N
iPart (√(N))→S
{1,N}→L_1
For(K,2,S)
N/K→T
If fPart(T)=0
augment(L_1,{K,T})→L_1
End
Pause L_1
L_1 is the list variable L1, accessed by pressing [ 2nd ] [ 1 ].
HP 42S/DM42 Program: MULPAIRS
00 {51-Byte Prgm}
01 LBL "MPAIRS"
02 STO 00
03 SQRT
04 IP
05 STO 01
06 1
07 RCL 00
08 STOP
09 2
10 RCL 01
11 1E-3
12 *
13 +
14 STO 02
15 LBL 01
16 RCL 00
17 RCL 02
18 IP
19 ÷
20 FP
21 X≠0
22 GTO 02
23 LAST X
24 ENTER
25 ENTER
26 RCL 00
27 X<>Y
28 ÷
29 STOP
30 LBL 02
31 ISG 02
32 GTO 01
33 RTN
Example
N = 64
TI-84 Plus CE: {1, 64, 2, 32, 4, 16, 8, 8}
HP 42S/DM42: 1, 64, R/S; 2, 32, R/S; 4, 16, R/S; 8, 8
64 = 1 * 64 = 2 * 32 = 4 * 16 = 8^2
Eddie
All original content copyright, © 2011-2019. Edward Shore. Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited. This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author.
Introduction
The program MULPAIRS displays all the multiplication pairs of a positive integer. For example, for n = 15:
15 = 1 * 15
15 = 3 * 5
The TI-84 Plus CE version gives a list of pairs ( first element * second element, third element * fourth element, etc). ( {1, 15, 3, 5})
The HP 42S version will display pairs on the display, one pair at a time.
TI-84 Plus CE Program: MULPAIRS
"2019-10-26 EWS"
Input "INTEGER N? ",N
iPart (√(N))→S
{1,N}→L_1
For(K,2,S)
N/K→T
If fPart(T)=0
augment(L_1,{K,T})→L_1
End
Pause L_1
L_1 is the list variable L1, accessed by pressing [ 2nd ] [ 1 ].
HP 42S/DM42 Program: MULPAIRS
00 {51-Byte Prgm}
01 LBL "MPAIRS"
02 STO 00
03 SQRT
04 IP
05 STO 01
06 1
07 RCL 00
08 STOP
09 2
10 RCL 01
11 1E-3
12 *
13 +
14 STO 02
15 LBL 01
16 RCL 00
17 RCL 02
18 IP
19 ÷
20 FP
21 X≠0
22 GTO 02
23 LAST X
24 ENTER
25 ENTER
26 RCL 00
27 X<>Y
28 ÷
29 STOP
30 LBL 02
31 ISG 02
32 GTO 01
33 RTN
Example
N = 64
TI-84 Plus CE: {1, 64, 2, 32, 4, 16, 8, 8}
HP 42S/DM42: 1, 64, R/S; 2, 32, R/S; 4, 16, R/S; 8, 8
64 = 1 * 64 = 2 * 32 = 4 * 16 = 8^2
Eddie
All original content copyright, © 2011-2019. Edward Shore. Unauthorized use and/or unauthorized distribution for commercial purposes without express and written permission from the author is strictly prohibited. This blog entry may be distributed for noncommercial purposes, provided that full credit is given to the author.
