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Expression Editor

 
 
The expression editor is used to create response from expression, question from expression and UDF from expression.
 
Expression Editor
1

Expression box

1. Expression box
Type the expression in the expression box.
2

Parse message

2. Parse message
With parse message you will know if the expression is properly written. If complete syntax is correct, the parse message returns a data type of the whole expression.
3

Expression hints

3. Expression hints
Click on it to expand Expression hints.
4

Categories of operators/functions

4. Categories of operators/functions
5

The list of operators/functions

5. The list of operators/functions
Selecting an operator/function shows description in the free space on the right.
Double-clicking on an operator/function inserts it into the expression box at current position.