HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 395

hp40g+.book Page 3 Friday, December 9, 2005 1:03 AM Using a customized aplet To use the "Triangles" aplet, simply select the appropriate formula, change to the Numeric view and solve for the missing variable. Find the length of a ladder leaning against a vertical wall if it forms an angle of 35o with the horizontal and extends 5 metres up the wall. 1. Select the aplet. TRIANGLES 2. Choose the sine formula in E1. 3. Change to the Numeric view and enter the known values. 35 5 4. Solve for the missing value. The length of the ladder is approximately 8.72 metres Resetting an aplet Resetting an aplet clears all data and resets all default settings. To reset an aplet, open the Library, select the aplet and press . You can only reset an aplet that is based on a built-in aplet if the programmer who created it has provided a Reset option. Extending aplets 22-3