From lookup functions to multi-part formulas, I wish I knew about these Excel formulas earlier because they make me feel like ... re using to see how to use the different functions and formulas ...

In the applet below is intended to help you understand the connection between the graph of a function and the function itself. Recall that a function can be thought of as a machine which takes an ...

Students are taught the "unit circle" and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions. With static graphs and equations ...

Because there are hundreds of functions to choose from, Excel groups functions into categories to make it easier to find ... how or when functions of different categories in Excel can be used ...