clarify the use of mathematical operators in XXXValue / XXXTemplate pairs

D String Generation
...
Use of operators in @XXXTemplate

Numerical variables, i.e. variables with an entry of float or int in the ‘C’
LANGUAGE
DATATYPE' column MAY be modified with explicit numbers and simple mathematical operators as defined in Table D.2 and SHALL be evaluated using standard C-operator precedence

Table D2 operators in @XXXTemplate
|Operator|Notes|
|+|Addition. Both unary and binary addition SHALL be supported.|
|-|Subtraction. Both unary and binary subtraction SHALL be supported.|
|*|Multiplication|
|/|Division|
|%|Modulo|
|()|Paranthesis.

<note for JDF float--> double>