User Guide

Chapter 4: Tutorials

function, and will automatically set it in plain roman type, so you don’t have to

fiddle with it. The quick way to get a

λ is to press CTRL+G followed by a letter l

(ell). Also, note that the I and the A represent matrices, so we have assigned

them the Vector-Matrix style, which causes them to appear in bold type. The

TRL+B shortcut will assign the Vector-Matrix style to the next character, so you

can press C

TRL+B followed by I to get the I, and CTRL+B followed by A for the A.

Alternatively, you can just type all the characters first, and then select them and

change their styles using the commands on the Style menu. Either way, your

equation should end up looking like this:

2. Type the second = sign and insert a vertical bar template by choosing the

icon. It’s located in the

palette.

3. Insert a 2×2 matrix template inside the vertical bars by choosing the

icon

from the

palette. Your equation should now look like this:

4. The insertion point will be in the top left slot of the 2×2 matrix, so enter the

expression

λ – a

there.

Drag and Drop

You can also drag the

term and drop it in the

other slots. Remember

to hold down the CTRL

key to copy the term.

5. We’re feeling lazy, so we’re going to create the other entries in the matrix by

cutting and pasting. Select the

λ – a

by double-clicking on it, copy it to the

Clipboard, and paste it into the other three slots in the matrix. The result should

be as shown below; it’s not right, of course, but we’re going to fix it up in a few

moments.