Greetings!

I am the sandbox!

You can play in me!

Just click on "Edit this page"!

Here is a sample editable Orc program:

[{orc editable=true height='100px'

Prompt("Enter your name:") >name>
"Hi " + name
}]

This one is not editable:

[{orc

Prompt("Enter your name:") >name>
"Hi " + name
}]

This is {{Monospace}}
{{{
    THREAD 1    THREAD 2   THREAD 3
       |           |          |         T=0
       |           |       Ltimer(1)    BLOCK 3
       |        Ltimer(2)     .         BLOCK 2
       |           .          .
--- Ltimer(1) ---- . -------- v ------- T=1, RESUME 3
       |           .          |
       |           .          |
       |           .          |
--- Ltimer(1) ---- v ----- Ltimer(1) -- T=2, RESUME 2
       |           |          |
       v           v          v
}}}


! Math Notation in the Wiki

$$
2\sum_{i=1}^n a_i \;\int_a^b f_i(x)g_i(x)\,dx
$$

When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are
$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$

In equation \eqref{eq:sample}, we find the value of an
interesting integral:

\begin{equation}
  \int_0^\infty \frac{x^3}{e^x-1}\,dx = \frac{\pi^4}{15}
  \label{eq:sample}
\end{equation}