So far I get few answers to what should be simple answers.....I'll try again....

So there are parameters....#1, #2.....I can add, sub, mul and div ( #1=[#2-1] )......any other operations available? such as ABS, INT, etc. and if so whats the syntax?
This shouldn't require a lot of thought.....there must be a listing somewhere......I'd figure it would be in the manual but heck.....i'd be wrong

any other operations available?

Yes.
Try Mach3Mill_1.84 (from this web site), starting at page 10-4 (which should be 10-1), and especially at pages 10-11 and 10-12. It's all there.

Cheers
Roger

As Roger has said but it’s tricky to find - this may help...

http://www.machsupport.com/software/downloads-updates/

FTP Downloads / FTP Server -  Main Menu  / Docs / Mach3Mill_1.84.pdf

Tweakie.

thanks....found it in the manual.....doesn't do as much as I needed so I'm running the calcs through a macro.