This is the current font size. Select any other item to make it the current font size. Makes this font size the current font size. The current font size is checked. Rotates the selected items. Creates a new preferences file containing a copy of the current preferences file and makes it the current preferences file. Defines a new file to be used for saving preferences. Sets some preferences of pro Fit. Sets some preferences of pro Fit. Displays some information about pro Fit. This function calculates a cubic spline curve going through the data points (x,y columns) in the frontmost data window. This function calculates a cubic spline curve going through the data points (x,y columns) in the frontmost data window. This function is currently used for plotting, fitting and calculations. Choose this function to make it the current function. Terminates pro Fit. If you press the option key, you will not be asked to save unsaved changes! Prints the contents of the active window. Not available now because the active window cannot be printed. Prints the contents of the active window. Displays the page setup dialog box that allows you to set the printing options for the active window. Not available now because the active window cannot be printed. Displays the page setup dialog box where you can set paper size, paper orientation and other printing options for the active window. Changes some preferences. Not available now because setting of preferences is not possible. Displays a comment for the active window. Not available now because the active window does not support this feature. Displays a comment for the active window. You can change this comment to your needs. Saves changes to the active document. Not available now because the active window cannot be saved. Saves changes to the active document. Saves the active window. Not available now because the active window cannot be saved as a disk file. (The contents of the parameters window can be saved in the current preferences file.) Saves the contents of the active window. Closes the active window. Not available now because the active window cannot be closed. Closes the active window. Opens an existing document. Opens a new window for plotting and drawing. Opens a new function window where you can define functions and programs. Press the option key (and shift key) while selecting this item to write a sample function (program) into the new window. Opens a new data window where you can edit numerical data. Displays a dialog box to calculate statistical information about numbers in data windows. Not available now because there is no data window. Displays a dialog box to calculate statistical information about numbers in data windows. Exchanges rows and columns in a data window. Not available now because the active window is not a data window. Exchanges rows and columns in the active window. Sorts the numbers in a data window. Not available now because the active window is not a data window. Sorts the numbers in the active window. Reduces data by smoothing, averaging or removing data points. Not available now because the active window is not a data window. Reduces data by smoothing, averaging or removing data points. Performs numerical transformations on the data in a data window. Not available now because the active window is not a data window. Performs numerical transformations on the data in the active window. Calculates the current function for single x-values. Calculates a table of the current function. Copies the best parameters of the last fit into the parameters window. Not available because the last fit did not produce a valid set of parameters. Copies the best parameters of the last fit into the parameters window. Runs a least-squares random fit. Not available now because the selected function cannot be fitted. Runs a least-squares random fit using the selected function. Runs a least-squares nonlinear fit. Not available now because the selected function cannot be fitted. Runs a least-squares nonlinear fit using the selected function. Aligns the selected objects.