# Used Packages

# Packages
#### fontspec ``\usepackage{fontspec}``
Advanced Font Selection: Allows you to use any OpenType or TrueType font installed on your system. Note that this requires compiling with XeLaTeX or LuaLaTeX instead of pdfLaTeX.

#### babel-czech ``\usepackage[czech]{babel}``
Czech Localization: Provides Czech-specific hyphenation patterns, translated document strings (like "Obsah" instead of "Table of Contents"), and support for Czech quotes.

#### amsmath ``\usepackage{amsmath}``
Mathematical Enhancements: The industry standard for math typesetting, providing superior alignment for multi-line equations and advanced mathematical structures.

#### amsfonts ``\usepackage{amsfonts}``
AMS Fonts: Provides a broad range of mathematical fonts, including the necessary glyphs for "blackboard bold" characters like the sets of real or natural numbers.

#### amssymb ``\usepackage{amssymb}``
Extended Symbol Set: Grants access to a vast collection of mathematical symbols that are not included in the standard LaTeX base.

#### amsthm ``\usepackage{amsthm}``
Theorem Styling: Provides a flexible mechanism for defining and styling "Theorem," "Lemma," "Definition," and "Proof" environments with consistent formatting.

#### graphicx ``\usepackage{graphicx}``
Image Handling: The essential package for inserting external graphics (PNG, JPG, PDF) into your document, allowing for scaling, rotating, and cropping.

#### xcolor ``\usepackage{xcolor}``
Color Management: Extends LaTeX’s ability to handle colors, allowing for custom color definitions, colored text, and background shading for table rows or boxes.

#### url ``\usepackage{url}``
URL Formatting: Specifically designed for typesetting web addresses. It ensures URLs use a monospaced font and "break" naturally at the end of lines without breaking the link.

#### textcomp ``\usepackage{textcomp}``
Extended Text Symbols: Provides support for the TS1 encoding, which includes extra symbols like the Euro sign (€), copyright symbols, and musical notes.

#### parskip ``\usepackage{parskip}``
Paragraph Spacing: Modernizes the document layout by adding vertical space between paragraphs and removing the standard first-line indentation.

#### booktabs ``\usepackage{booktabs}``
Professional Tables: Provides high-quality horizontal rules (\toprule, \midrule, \bottomrule) to create clean, publication-quality tables without the need for ugly vertical lines.

#### icomma ``\usepackage{icomma}``
Czech Number Format: Fixes the math-mode spacing issue where LaTeX normally treats a comma as a separator (adding a space), allowing it to act correctly as a decimal point (e.g., 0,03).

# Installation
## Debian / Ubuntu
```shell
sudo apt update
sudo apt install texlive-latex-recommended texlive-latex-extra texlive-lang-czechslovak texlive-xetex
```
or the full package (large download)
```shell
sudo apt update
sudo apt install texlive-full
```

## Fedora

```shell
sudo dnf install 'tex(fontspec.sty)' 'tex(babel-czech)' 'tex(amsmath.sty)' \
'tex(amsfonts.sty)' 'tex(amssymb.sty)' 'tex(amsthm.sty)' 'tex(graphicx.sty)' \
'tex(xcolor.sty)' 'tex(url.sty)' 'tex(textcomp.sty)' 'tex(parskip.sty)' \
'tex(booktabs.sty)' 'tex(icomma.sty)'
```
or
```shell
sudo dnf install texlive-collection-latexrecommended texlive-collection-latexextra texlive-collection-langczechslovak texlive-xetex-bin
```
or the full package (large download)
```shell
sudo dnf install texlive-scheme-full
```