# How to use this forum?

**URL:** <https://igraph.discourse.group/t/how-to-use-this-forum/35>\
**Category:** Uncategorized\
**Created:** [28 January 2020 22:25 UTC](https://igraph.discourse.group/t/how-to-use-this-forum/35 "2020-01-28T22:25:49Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![szhorvat](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/szhorvat/32/3_2.png) [@szhorvat](https://igraph.discourse.group/u/szhorvat)\
**Post date:** [28 January 2020 22:25 UTC](https://igraph.discourse.group/t/how-to-use-this-forum/35/1 "2020-01-28T22:25:49Z")

</div>

If you are new to the Discourse platform, which we are using for this forum, the [Discourse New User Guide](https://meta.discourse.org/t/discourse-new-user-guide/96331) will show you the basics.

In short, text is formatted using [Markdown](https://commonmark.org/help/) (recommended), BBCode or HTML. The examples below will help you get started.

* * *

If you type

> ```markdown
> **Bold** , _italic_, `print(str)` and a [link](http://igraph.org).
> 
> ```

it will format as

> **Bold** , _italic_, `code` and a [link](http://igraph.org).

* * *

Program code can be delimited with triple backquotes. If you type

> ````markdown
> ```
> def sqr(x):
> y = x*x
> return y
> ```
> 
> ````

it will format as

> ```auto
> def sqr(x):
> y = x*x
> return y
> 
> ```

* * *

In modern browsers, images can be pasted directly using Ctrl-V or Command-V. Here’s a visualization of Tietze’s graph:

> ![image](https://global.discourse-cdn.com/free1/uploads/igraph/original/1X/af47dc6f85a0496cc2092ab3318cfe77455574d7.png)

* * *

This forum supports typing mathematics using LaTeX notation. The delimiters are `$` for inline math and `$$` (typed on a separate line) for display equations. If you type

> ```markdown
> The equation $ax^2 + bx + c = 0$ has the solutions
> $$
> x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
> $$
> 
> ```

it will format as

> The equation ax^2 + bx + c = 0 has the solutions
> 
> x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}

---

<div class="post-metadata">

**Author:** ![szhorvat](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/szhorvat/32/3_2.png) [@szhorvat](https://igraph.discourse.group/u/szhorvat)\
**Post date:** [28 January 2020 22:26 UTC](https://igraph.discourse.group/t/how-to-use-this-forum/35/2 "2020-01-28T22:26:16Z")

</div>

Pinned globally on 28 January 2020 22:26 UTC