(12C) Palindromic Number
09-09-2019, 08:01 AM (This post was last modified: 09-09-2019 08:03 AM by Gamo.)
Post: #1
 Gamo Senior Member Posts: 605 Joined: Dec 2016
(12C) Palindromic Number
A palindromic number are those numbers which read the same backward as forward.
The examination of these numbers is a field rich with possibilities for creative computing.

Begin with any positive integer. If the sum is not a palindrome, treat it as the original number and continue.
The process stops when a palindrome is obtained.

For example, beginning with 78:

1. 78 + 87 = 165
2. 165 + 561 = 726
3. 726 + 627 = 1353
4. 1353 + 3531 = 4884

The conjecture, often assumed true, is that this process will always lead to a palindrome?

How to run this program using example above: FIX 0

78 [R/S] display 4884 [X<>Y] display 4

Palindrome is 4884 and took 4 iterations
----------------------------------------------------
Program:
Code:
 01 STO 1 02 STO 0 03 STO-0 04 INTG 05  1 06  0 07 STOx0 08  ÷ 09 FRAC 10 STO+0 11 LSTx 12 X=0 13 GTO 15 14 GTO 04 15 RCL 0 16 RCL 1 17  - 18 X=0 19 GTO 26 20  1 21 STO+2 22 RCL 0 23 RCL 1 24  + 25 GTO 01 26 RCL 2 27 RCL 0 28  0 29 STO 2 30 R↓

Remark:
This program is for use on general purpose only some number cannot be deal with this limited computation limit.
Such number this calculator must need more than 10 digits to display and
some example number is 196 try to run this on a super computer !!!

Gamo
 « Next Oldest | Next Newest »

 Messages In This Thread (12C) Palindromic Number - Gamo - 09-09-2019 08:01 AM

User(s) browsing this thread: 1 Guest(s)