Chapter 15 Obtaining Drawing Information 437 Copyright Goodheart-Willcox Co., Inc. NOTE NOTE Access the QuickCalc palette quickly by right-clicking in the drawing window and selecting QuickCalc. You can also access QuickCalc from specifi c items, such as the button that sometimes appears next to a text box in a dialog box, the Quick Properties palette, and the Properties palette. Entering Expressions The basic math functions used in numeric expressions include addition, subtrac- tion, multiplication, division, and exponential notation. You can enter grouped expres- sions by using parentheses to break up the expressions to be calculated separately. For example, to calculate 6 + 2 and then multiply the sum by 4, enter (6+2)*4. The result will be wrong if you do not add the parentheses. Figure 15-16 shows the symbols used for basic math operators. Add expressions in the input box by picking buttons on the Number Pad or by using keyboard keys. After creating the expression, pick the equal (=) button on the number pad or press [Enter] to evaluate the expression. Figure 15-17 shows options found on the Number Pad that are not available from the keyboard. The result of an evaluated expression appears in the input box, and the expression moves to the history area. Figure 15-18 shows the QuickCalc palette before and after calculating 96.27 + 23.58. When you are using only the input box in QuickCalc, pick the More/Less button below the input box to hide the additional sections, saving valuable drawing space. NOTE NOTE If you move the cursor outside of the QuickCalc palette, the drawing area is automati- cally activated. Pick anywhere inside the QuickCalc palette to reactivate QuickCalc. Figure 15-17. The Number Pad area contains additional options that you cannot access using the keyboard. Memory keys To get the square root of a value Figure 15-16. Common math operators. Symbol Function Example + Addition 3+26 – Subtraction 270–15.3 * Multiplication 4*156 / Division 265/16 ^ Exponent 22.6^3 ( ) Grouped expressions 2*(16+2^3)