Operators operate on symbols, strings, and numbers in named expressions. These are the types of operators:

• arithmetic — ^ (exponentiation), *, /, \, Mod, +, –

  Both / and \ are division operators; the former produces a result of type double, the latter type integer.

  Following are examples of expressions containing arithmetic operators (" -> " is shorthand for "evaluates to").

  1 + "4" -> 5
  2.3 * 3 -> 6.9
  12/5 -> 2.4
  12\5 -> 2

• comparison — <, <=, >, >=, =, <>, and, and or.

  Following are examples of expressions containing comparison operators:

  20 < 10 -> False
  7 >= 7 -> True

• conditional — IIf(conditional,true-result,false-result)

  Following are examples of expressions containing IIf:

  IIf (500>200, "math OK";, "math wrong") -> "math OK"
  IIf (500<200, "math OK", "math wrong") -> "math wrong"

• string concatenation — &

  Following are examples of expressions containing &:

  1 & "4" -> "14"
  "Dog" & " and " & "Cat" -> "Dog and Cat"

System.Math.Cos(System.Math.PI*45.0/180.0) -> 0.707
System.String.Length("Dog" & " and " & "Cat") -> 11