Absolute

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Lucius,  thanks for the apology. It's fine if you're having a bad time to
vent some anger - I've been observing this list long enough to know you
don't usually get that cranky.

Please understand that I am completely uneducated (only to Year 12 in
Australia - which is high school in the US) and only program to save time
with my stock market analysis, and a few other small projects. I say this in
advance because the following questions may seem ignorant.

If x is the largest possible atom,  what happens when your program calls
x+1?
Or 2x?  Or any other equation that will make x bigger than x already is?
Obviously the program will crash. Are there methods commonly used to avoid
this happening if it is possibly likely (e.g if x>too_big then
approximate(x) and inform) or do we just hope it doesn't happen? How many
other algorithms that we use every day might possibly crash?

I, for one, will only be using the absolute() function you suggested from
now on. I'm interested to know if you could suggest any more.

Kind Regards,
Aidan

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