Sample
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<HTML> <BODY> <CARAVAN> var x; x(valA)="2.3" ;// 2.3 is a constant string x(valB)="xyz" ;// xyz is a constant string x(valC)="2" ;// 2 is a constant string.
There is no distinction between a numeric value and a non numeric value. All strings are in quotes.
2 constant strings which are numeric can be added, subtracted, multiplied, divided or find the remainder (mode operation).
e.g 1. x(valA(01)) += x(valC) ; x(valA) ;// this will display 4.3
2. x(valA(01)) -= x(valC) ; x(valA) ;// this will display 0.3
But 2 strings - one with a numeric value and another with string value can only be added (concatenated)
e.g x(valA(01)) += x(valB) ; x(valA) ;// this will display "2.3xyz"
x(valA(01)) -= x(valC) ;// not valid
</CARAVAN> </BODY> </HTML>
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