TED Expression Builder

See also: Environmental Loadings Screen, Expressions

TED contains an Expression Builder tool (shown below) that helps you edit environmental loadings expressions in TED by dragging and dropping the potential variables and constants available in TED. You can access the Expression builder by clicking the "..." button attached to any TED expression.

The screen of the Expression Builder is divided into two resizable panes. At the top are two tabs. One contains the list of Variables that can be included in the expression (carbon content, sulfur content, energy content, ash content, etc.), while the other contains the list Molecular Weight constants that can be referenced. At the bottom of the screen is an editing box, into which you can directly type to edit an expression or into which you can add an item from the top pane either by dragging-and-dropping or by double-clicking on an item. At the right of the editing box are a set of buttons that give quick access to the most common mathematical operators (+, -, *, /, ^, etc.).

A toolbar at the top of the second pane gives quick access to the most common editing options such as Cut (), Copy (), Paste (), etc. When constructing an expression, you can check whether the expression is valid by clicking on the Verify button. Finally, when you have finished with the expression, click on OK to put the expression back into the environmental effect data screen you came from, or click on Cancel to abandon the edit.