<p/><b>Usage Summary:</b>

<table style="border-spacing:2em; border-collapse: separate;">

<tr>
<td style="width:10em;">Add a component</td>
<td>Click on the component in the parts bin (the columns of part icons to
the right of the diagram area) and drag it onto the diagram.  Release
the mouse when the component is in the correct position.
</td>
</tr>
<!-- note that entities like &mdash; may be used. -->
<tr>
<td>Move a component</td>
<td>Click to select a component in the diagram (it will turn green)
and then drag it to its new location.  You can use shift-click to add
a component to the current selection.  Or you can click somewhere in
the diagram that is not on top of a component and drag out a selection
rectangle &mdash; components intersecting the rectangle will be added to
the current selection.
</td>
</tr>

<tr>
<td>Rotate a component</td>
<td>Click to select a component in the diagram (it will turn green)
and then type the letter "r" on the keyboard.  The component will
be rotated 90 degrees.  Additional rotations will move the component
through its eight possible orientations (4 compass points and their
reflections).
</td>
</tr>

<tr>
<td>Delete a component</td>
<td>Click to select the component in the diagram (shift-click to
select multiple components) then type DEL or BACKSPACE on your
keyboard.
</td>
</tr>

<tr>
<td>Change a component's properties</td>
<td>Double click on the component.  This will bring up an Edit Properties
window that has input fields for each of the component's properties.
Click OK to change the values.  Click CANCEL or the window's close
button to abort the changes.  Numeric values can be entered using
engineeering notation:

<center><table style="border-collapse:separate; border-spacing:1em;">
<tr><th>suffix</th><th>multiplier</th> <th style="width:3em"></th> <th>suffix</th><th>multiplier</th></tr>
<tr><td>T</td><td>\(10^{12}\)</td> <td></td> <td>u</td><td>\(10^{-6}\)</td></tr>
<tr><td>G</td><td>\(10^{9}\)</td> <td></td> <td>n</td><td>\(10^{-9}\)</td></tr>
<tr><td>M</td><td>\(10^{6}\)</td> <td></td> <td>p</td><td>\(10^{-12}\)</td></tr>
<tr><td>k</td><td>\(10^{3}\)</td> <td></td> <td>f</td><td>\(10^{-15}\)</td></tr>
<tr><td>m</td><td>\(10^{-3}\)</td></tr>
</table></center>

</td>
</tr>

<tr>
<td>Add a wire</td>
<td>Wires start at connection points, the open circles that
appear at the terminals of components or the ends of wires.
Click on a connection point to start a wire &mdash; a green wire
will appear with one end anchored at the starting point.
Drag the mouse and release the mouse button when the other
end of the wire is positioned as you wish.  Once a wire has
been added to the diagram it can be manipulated like any other
component.
</td>
</tr>

</table>