Hello, Markdown!

This is a sample code block:

function greet() {
    console.log("Hello, world!");
}

And here is an inline formula: $E = mc^2$

And some block formula:

e^{\pi i} + 1 = 0

\left( \begin{array}{ccc} a & b & d \\ 0 & a & c \\ 0 & 0 & a \\ \end{array} \right)^n = \left( \begin{array}{ccc} a^n & n a^{n-1} b & n a^{n-2} \left[a d+\frac{1}{2} (n-1) b c\right] \\ 0 & a^n & n c a^{n-1} \\ 0 & 0 & a^n \\ \end{array} \right) , \quad n \in \mathbb{Z}^+

\int_0^\infty x^n e^{-x} \mathrm{d} x = n!

footnote

Here is a simple footnote¹.

A footnote can also have multiple lines².

This is a second line.

A strange picture:

what

what?

Note

Highlights information that users should take into account, even when skimming.

Tip

Optional information to help a user be more successful.

Important

Crucial information necessary for users to succeed.

Warning

Critical content demanding immediate user attention due to potential risks.

Caution

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