The spreadsheet and grapher tool can be configured using parameters supplied to the applet to meet different educational goals. The following table provides a brief description of the more important options. Please contact us for additional information or to make recommendations for future tool development.
Parameter Values Description EDIT 0, false, 1, true Disables the function window and data window. Useful if you want to show graphical information without showing the source. NP 0, 1, 2, or 3 Sets the number of parameters and corresponding sliders. If 0, the parameter and slider portion of the applet is not shown. POINTS Integer Number of points to plot. If not supplied, approximately 200 points are used across the viewing ranging. STEP Real Number Step size to use when plotting point by point. XMIN, XMAX, YMIN, YMAX Real Numbers Sets the default viewing window. AUTORANGE 0, false, 1, true Turns the auto range feature on/off. FN1, FN2, ... Symbolic Expression Allows the expressions to be pre-entered for the functions to graph. PLOTON Plot Number Turns on a plot at start up. ALABEL
AMIN
AMAX
ASimilar for B and C
String
Real number
Real number
Real numberThese parameters set the initial information about the parameter. The label can be used to change the visible name, but 'a' must still be used in the expression. AMIN and AMAX sets the range while "A" sets the initial value. LEGEND 0, false, 1, true Turns the legend feature on/off. WINDOW 0, false, 1, true Disables the window option. Useful if you need to fix the viewing window. Parameters for the Spreadsheet Data Editor ROWS Integer Number of Rows to show in Data window COLS Integer Number of Columns to show in Data Window AUTOLOAD 0, 1 Determines if supplied sample data file is automatically loaded SAMPLE string Filename of Sample Data File URLBASE string URL base for sample data files FILE string Filename to store data in. Currently only one data file is permitted.
