A chart is a graphical representation of data that helps your audience to understand your information easily; charts make comparisons in your data and analyze the trends or patterns in data sets.

A check mark box in an Excel spreadsheet is handy for ticking off items, but it can go much further. Excel check boxes can trigger calculations and provide visual indicators. For example, in addition ...

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...