The statement @( formula or variable) places the value stored in the variable or the result of the formula in the result document. Because of this it can only be used within a text part of a model document.
ITP Model documents consist of ITP code and text. The switch between these modes is made with the character #. To be able to put the value of variables or retrieved data in the text the @(formula or variable) is used.
A model document always starts in text mode. The # in front of BEGIN starts the ITP mode. Refer to variable for more information.
Example
#BEGIN
TEXT some_text := "This is example text."
#
This is the content, the value, of the variable some_text: @(some_text).
#
END#
Result:
This is the content, the value, of the variable some_text: This is example text..
Note that the function @( ) will display a Number with two decimals and a thousand separator.