For those who have used a scientific calculator, most of the functions of Calculate will be quite familiar.
The Toolbars are
To see a help option for plot, enter the command
help(plot)
on the text entry line.
The general help function is
help()
The list of help topics is available with the command
help(index)
including topics not supported on the menus. Help is not provided for the constants pi, e, gamma (Euler-Mascheroni Constanat) and phi (Golden Ratio), but these can be looked up on the Internet. Clicking their icons inserts their numeric values.