HP 39GS hp 39gs_user's guide_English_E_HDPMG39AE13.pdf - Page 71
Function aplet interactive analysis, Access FCN, variables
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Function aplet interactive analysis From the Plot view ( ), you can use the functions on the FCN menu to find roots, intersections, slopes, and areas for a function defined in the Function aplet (and any Function-based aplets). See "FCN functions" on page 3- 10. The FCN operations act on the currently selected graph. The results of the FCN functions are saved in the following variables: • Area • Extremum • Isect • Root • Slope For example, if you use the Root function to find the root of a plot, you can use the result in calculations in HOME. Access FCN variables Function aplet The FCN variables are contained on the VARS menu. To access FCN variables in HOME: Select Plot FCN or to choose a variable To access FCN variable in the Function aplet's Symbolic view: Select Plot FCN or to choose a variable 3-9