Arithmetic Expression

An arithmetic expression takes one of the following general forms:
expression
To
expression
expression
+
expression
expression
-
expression
expression
*
expression
expression
/
expression
expression
//
expression
or it is simply a numeric variable.

Example

Consider numeric variables
VarA
,
VarB
,
VarC
having values
3
,
3
,
4
respectively.
Expression
Value
1 To VarA
List( 1, 2, 3 )
1 To VarA + VarB + VarC
List( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 )
VarA + VarB + VarC
10
VarA - VarB - VarC
-4
VarA * VarB + VarA * VarC
21
VarA * ( VarB + VarC )
21
VarA* VarB / VarC
2.25
VarA / VarB * VarC
4
VarA // VarB
1
VarA // VarC
0
VarC // VarA
1