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 ...

You can insert a line in a Word document by typing three characters that autocorrect into a line. Characters like underscores, equal signs, and pound signs autocorrect into different kinds of lines.

Microsoft's flagship word processor has tons of neat little features to customize your documents, and it can be hard to keep track of and master them all. But with our quick guides to using Microsoft ...