Chapter 15 Obtaining Drawing Information 439 Copyright Goodheart-Willcox Co., Inc. Converting Units The Units Conversion area allows you to convert one unit type to another. The available unit types are Length, Area, Volume, and Angular. For example, to use the unit converter to convert 23 centimeters to inches, pick in the Units type fi eld to display the drop-down list. See Figure 15-20. Pick the drop-down list button to display the different unit types and select Length. Activate the Convert from fi eld and select Centimeters from the drop-down list. Activate the Convert to fi eld and select Inches from the drop-down list. Type 23 in the Value to convert fi eld and pick the equal (=) button or press [Enter]. The Converted value fi eld displays the converted units. To pass the converted value to the input box for use in an expression, pick the Return Conversion to Calculator Input Area button. See Figure 15-21. If the button is not visible, pick once on the converted units in the Converted value fi eld. Figure 15-20. Picking the current unit type activates the field and displays the drop- down list button. Drop-down list button Figure 15-19. The scientific functions available in QuickCalc. Sine Cosine Tangent Base-10 Log Base-10 Exponent Arcsine Arccosine Arctangent Natural Log Natural Exponent Convert Radians to Degrees Convert Degrees to Radians Absolute Value Round Truncate Figure 15-21. After you convert a value, pass the value to the input box for use in an expression. Pick to pass value to input box and history area