Not Enough Digits

[Pointdump]

Is there any way to expand the number of digits past the decimal (Precision) on the Calculator Display?

Dave

[antoniovinci]

Did you just change the LUPREC variable..?

[Pointdump]

Antonio,

Change it? I'd never even heard of that one!

Dave

[rkmcswain]

It's also the same as changing it here in the UNITS command.

[Pointdump]

RK,

It's set thusly:

I've looked at every Ambient Setting, Feature Setting, and Command Setting I can think of, searched the Help Section and Forum. There's gotta be a setting somewhere.

Dave

[Pointdump]

OK, so if I click the "Pi" key, I get Pi to 8 decimal places. Dividing Pi by 2 repeatedly gets me 9 decimal places. I haven't checked recently, but I'm pretty sure that Pi goes to more than 8 or 9 decimal places.

Dave

[rkmcswain · Accepted solution]

Apologies. I was simply showing the most common way to adjust "luprec".

I see now that this isn't affecting the precision in the QuickCalc.

It does not seem to be a "precision" thing, it looks like more the CALC does not operate to the same degree of accuracy as AutoCAD in general.

Change your first number to 144.566 (instead of 1449864.566) and your answer grows to 6 decimal places

[rkmcswain]

If you use lisp, you will see the full precision that AutoCAD is capable of.

Command: (rtos (cal "1*pi") 2 16)
"3.141592653589793"

[Pointdump]

RK,

Thanks. You're onto something there. Instead of "Precision", it appears the controlling factor is Significant Figures, just like my desk calculator.

Dave