To quickly access frequently used programs instead of having to mull through the start menu and its sub-menus.
The Fx icon.
an icon
It is a graphical indicator of some action that a user may want to do. They do the action by clicking on the icon.
Icon
icon
Icons.
The SUM function, which has the Autosum icon. Other functions can be taken from it, including the Average, Count, Min, Max and Counta functions.
Icon
It is at the start of the formula bar. it is also on the formulas tab.
Display more decimal places.
It is in the Math and Trig category of functions. You can click on the function icon to start the process of getting to it.
They act as symbols to allow the visitor an easier and smoother browsing experience.