SOLUTION: im not sure if anyone can help with this but even if im pointed in the wright direction ill be further forward. i have a very old Psion 2 organizer that runs a little program that

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Question 1034408: im not sure if anyone can help with this but even if im pointed in the wright direction ill be further forward.
i have a very old Psion 2 organizer that runs a little program that works in the following way.
i enter a 4 digit number and it outputs a 4 digit number.
what im trying to do is find out how it calculates the outputted number from the number i enter so i can write an app for my phone.
what i have found out so far is it only returns a four digit number using 01234567 .
if i enter 0000 i get 0000
if i enter 0001 i get 1021
if i enter 0002 i get 2042 (1021*2)
if i enter 0003 i get 3063 (1021*3)
if i enter 0004 i get 4004 (1021*4=4048 but because it doesnt use 8 it changes the 8 to a 0)
if i enter 0005 i get 5025 (4004+1021)
if i enter 0006 i get 6046 (5025+1021)
if i enter 0007 i get 7067 (6046+1021)
if i enter 0008 i get 0100 (7067+1021=8088 but because it doesnt use 8 it
changes 8's to 0's)// not sure why i end up with a 1 in that position
if i enter 0009 i get 1121 (no idea how i end up with that)
if i enter 0010 i get 1231
if i enter 0011 i get 0210 (1231-0210)
if i enter 0012 i get 3273 (no idea how i end up with that)
if i enter 0013 i get 2252 (3273-1021)
0020 is 2462
0030 is 3653
0040 is 4044
0050 is 5275
0100 is 3331
9999 is 3063
can anyone see a pattern?.

Answer by Theo(13342) (Show Source):
You can put this solution on YOUR website!
i'm not sure what the logic would be.
however, here's a webiste that might be helpful.
you may be able to contact the author of that webpage.
his email is in the link.
http://www.jaapsch.net/psion/
if theere is software in the machine that's doing what you are showing, then you may be able to print it out and discover what the logic is.
give it a shot.