The Expressions pane contains a total of 100 rows and 26 columns (A-Z).
Expressions constraint A. Sender Cells B. Receiver Cells C. Expression
When constructing Expressions constraints, a cell may contain one of the following:
| Cell Type | Purpose |
|---|---|
| Senders | A Sender can be an input device or a model. Senders are used to send data to other cells. Senders only send data. |
| Expressions | An Expression is a recognized keyword that performs a mathematical operation using the cells or numbers within its parentheses or on either side of its operator. For example, an addition symbol (+) is an operator. The result of the operation is assigned to the Receiver cell to the left and to the cell itself. This means that you can reference the cell in other expressions. |
| Values | A cell may also contain a value referenced by an expression or Receiver. Before assigning a value to a cell, you should select the cell’s data type. |
| Receivers | A Receiver cell assigns the results of an expression to the properties of a model or an output device. |
