Prime symbol is available on your computer keyboard. However, you should also have an idea about the various latex packages and commands.

Symbol | Prime symbol |
---|---|

Unicode | U+2032 |

Package | Default |

Command | `′` , `\prime` , …,etc |

Example | `f\prime(x)` → f ′ (x) |

```
\documentclass{article}
\begin{document}
a' b' c'
\end{document}
```

**Output :**

a’ b’ c’

Notice the output above, you cannot use the direct prime symbol as a latex command in text mode. Because it will return the single left quotation mark. So, the prime symbol has to be used in math mode.

```
\documentclass{article}
\begin{document}
a$'$ b$'$ c$'$
$ a' b' c' $
\end{document}
```

**Output :**

a′ b′ c′ a′ b′ c′

\prime command must be used in math mode. However, it will take the place of inline text. For example

```
\documentclass{article}
\begin{document}
$$ a\prime $$
$$ b\prime $$
$$ c\prime $$
\end{document}
```

**Output :**

The above output is not very accurate. Because the prime symbol is always located along the top corner.

So, you can pass in superscript without using a direct prime command. Now you notice the output below.

```
\documentclass{article}
\begin{document}
$$ a^{\prime} $$
$$ b^{\prime} $$
$$ c^{\prime} $$
\end{document}
```

**Output :**

a′ b′ c′

## Double and triple prime symbols in LaTeX

Mathematically, the prime symbol is used in calculus to represent the derivative of a function.

```
\documentclass{article}
\begin{document}′
$$ f'(x) \; f^{\prime}(y) $$
$$ f''(x) \; f^{\prime\prime}(y) $$
$$ f'''(x) \; f^{\prime\prime\prime}(y) $$
\end{document}
```

**Output :**

f′(x) f′(y) f′′(x) f′′(y) f′′′(x) f′′′(y)