2012

System Variables
AREA
Stores the last area computed by the AREA command.
PERIMETER
Stores the last perimeter value computed by the AREA or LIST command.
Use a Calculator
You can access a calculator function as you work with the program. You can
use either the QuickCalc calculator interface or the CAL command at
Command prompt transparently while a command is active or not.
Use the QuickCalc Calculator
With the QuickCalc calculator, an interface that looks and functions like a
hand-held calculator, you can perform mathematical, scientific, and geometric
calculations, convert units of measurement, manipulate the properties of
objects, and evaluate expressions.
Overview of QuickCalc
The QuickCalc calculator includes basic features similar to most standard
mathematical calculators.
In addition, QuickCalc has features specific to AutoCAD LT such as geometric
functions, a Units Conversion area, and a Variables area.
Unlike most calculators, QuickCalc is an expression builder. For greater
flexibility, it does not immediately calculate an answer when you click a
function. Instead, you compose an expression that you can easily edit and,
when you are finished, you click the equal sign (=) or press Enter. Later, you
can retrieve the expression from the History area, modify it, and recalculate
the results.
With QuickCalc, you can
■ Perform mathematical and trigonometric calculations
■ Access and review previously entered calculations for re-evaluation
■ Use the calculator with the Properties palette to modify object properties
Use a Calculator | 529