### Introducing rpnbuddy

rpnbuddy is an AIM bot that implements a reverse polish notation calculator with floating point, fixed decimal places, decimal, binary, hexadecimal and octal modes. It's currently in somewhat beta, but feel free to chat to it using the AIM user name 'rpnbuddy'.

Theoretically, rpnbuddy is online all the time, but if you have trouble accessing it please drop me a line. As usual, rpnbuddy is a totally free service from me; I'll do my best to fix bugs and add features as requested. At this time the source code is not open.

Typing help makes rpnbuddy print out the following help information:

And here's a the log of an rpnbuddy session calculating the area of a circle of radius 10:

Or switching to hexadecimal mode you can do a little bitmasking:

Enjoy!

Theoretically, rpnbuddy is online all the time, but if you have trouble accessing it please drop me a line. As usual, rpnbuddy is a totally free service from me; I'll do my best to fix bugs and add features as requested. At this time the source code is not open.

Typing help makes rpnbuddy print out the following help information:

Arithmetic operators: + - * / % (mod)

Bitwise operators: and, xor, not, or

Functions: sqrt, e^x, 10^x, x^y, cos, sin, tan, ln, log, int, abs, x^2, 1/x

Set word size: push word size (8, 16, 32, 64) then wsize

Set base: dec, bin, oct, hex

Set floating point mode: float

Set fixed decimal places: push decimal places (up to 16) then fix

Show stack: stack

Show state: state

Useful constants: pi, e

And here's a the log of an rpnbuddy session calculating the area of a circle of radius 10:

(13:27:31) jgc: pi

(13:27:31) rpnbuddy: 3.14159265358979

(13:27:39) jgc: 10

(13:27:41) jgc: x^2

(13:27:42) rpnbuddy: 100

(13:27:43) jgc: *

(13:27:43) rpnbuddy: 314.159265358979

Or switching to hexadecimal mode you can do a little bitmasking:

(13:28:28) jgc: 0

(13:28:29) jgc: hex

(13:28:30) rpnbuddy: Unsigned; Base: hex; Word size: 32

(13:28:30) rpnbuddy: 00000000

(13:28:38) jgc: 1234abcd

(13:28:42) jgc: fefefefe

(13:28:43) jgc: and

(13:28:43) rpnbuddy: 1234aacc

(13:28:52) jgc: ff

(13:28:53) jgc: xor

(13:28:53) rpnbuddy: 1234aa33

Enjoy!

Labels: my services

## 4 Comments:

I've been playing with bots a bit. Check out Meeebot on AIM. Lots of people seem to get in arguments with it...

Spencer

Is RPNbuddy dead? It haven't been available for a long time (AFAICT). I kind of liked this service ...

Yes, RPNBuddy is dead. It really didn't get much use, and I had to keep fiddling with the server.

Would anyone like to take the code and keep it running?

I might be interested - depending on the requirements (for the server). Contact me at gmail.com.

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