Text strings composed of digits can and will be converted into numeric values by VTS when they are used in an expression. Given the following example:
"10" + "20"
The result of the expression will be the numeric value, 30.
This functionality changed slightly in VTS version 8.0. In earlier versions, the addition operator would have done double duty as a concatenation operator in this type of expression. The result of the expression would therefore have been the concatenation of the two text strings, "1020". The change makes the behavior of the addition operations consistent with the behavior of other VTS functions.