Look for the Edit This Page link. (You logged in, right?)

Try editing the text in the next section.

Notice the pretty WYSIWYG editor. If you don’t have javascript on, turn it on.

Try the buttonbar. Hover for a second to see a tooltip.

Try using key shortcuts for cut/paste/select all/bold/italic/underline.

You can also have it take over the whole browser window if you want more space. Click that button again to undo.

Notice the Preview button below the editor window. Use it liberally.

Notice the Save button below the editor window.

Save your edits and (if you wrote valid latex) admire how everything is updated.

Notice the pop-up formatting help (above Username)

Notice how the Table of Contents is automatically built when you have more than one header.

If you truly mess up the page, you can go to “See Past Edits” and rollback to a previous version (perhaps the one before you started editing!).

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You can create a new page by making a link on an existing page.

Enter the text [[Name_Of_Your_Page?]]. When you save the page, that text will look like [[Name_Of_Your_Page?]]. Notice the question-mark. You can then click on the question-mark to go to an editing page. (Please don’t make a new page there with that name so we can preserve the nice little question mark!)

Some LaTeX You Can Play With

Here is a problem!

A Problem!

Find the following limits. Be sure to explain your reasoning at
each step.
\begin{alignat*}{3}
&a) \lim_{x \to \infty}\frac{x+\sin x }{ 5x+6} & &b) \lim_
{x \to \infty}\frac{\sin x }{ x} & &c) \lim_{x \to \infty}x \sin \frac{
1 }{ x} \\
&d) \lim_{x \to \infty}\frac{x \sin x }{ x^2+5} &
&e) \lim_{x \to \infty}{\sqrt {x^2+x} - x} &
&f) \lim_{x \to \infty}\frac{x^2( 1+ \sin^2x) }{ (x+\sin x
)^2}
\end{alignat*}

Tags: practice, editors

A Bonus Problem

When a model rocket is launched, the propellant burns for a
few seconds, accelerating the rocket upward. After burnout, the
rocket coasts upward for awhile and then begins to fall. A small
explosive charge pops out a parachute shortly after the rocket starts
down. The parachute slows the rocket to keep it from breaking when it
lands.
The figure below shows velocity data from the flight
of a model rocket. Use the data to answer the questions below.

How fast was the rocket climbing when the engine stopped?

For how many seconds did the engine burn?

When did the rocket reach its highest point? What was
its velocity there?

When did the parachute pop out? How fast was the
rocket falling then?

How long did the rocket fall before the parachute opened?

Very carefully sketch a graph of the height of the
rocket (in feet) versus time (in seconds).