2011

Table Of Contents
Navigating the Expression String
You can type an expression into the text field at the top of the calculator or
press the buttons to generate an expression string.
All the text field hotkeys are enabled when editing the expression string. You
can therefore navigate the string normally. When using the function buttons
to insert function tokens into the expression text field, the cursor position is
updated to the following local position in the string. This lets you simply tap
with a pen and insert expression tokens without having to move the cursor
position manually.
Expression functions and operators are grouped by categories. The Math
category of functions is available by default. Although you can type into the
text field directly, showing the buttons helps you to memorize the available
functions.
Clicking the C button clears the expression string.
Once an expression is used to drive an attribute value, you can no longer
keyframe the value. You must delete the expression before setting a keyframe.
728 | Chapter 31 Expressions