Basic Text Formatting

There are two main commands for italicizing text in LaTeX:

1. The \textit command for basic italic text:

   \ extit{italic text}
2. The \emph command for semantic emphasis:

   \emph{emphasized text}

Italics in Math Mode

In mathematical expressions, variables are automatically italicized. However, you can use specific commands for different cases:

For multi-letter variables or text within math mode, use \mathit:

Common Use Cases and Commands

Best Practices

1. Use \emph for logical emphasis in regular text
2. Reserve \textit for stylistic purposes like book titles
3. In math mode, use \mathit for multi-letter variables
4. Avoid the deprecated \it command in favor of \textit
5. Maintain consistent usage of italic text throughout your document

Common Mistakes to Avoid

1. Don't use \textit in math mode - use \mathit instead
2. Avoid overusing italics as it can reduce readability
3. Remember that single-letter variables in math mode are automatically italicized
4. Don't mix different emphasis commands inconsistently