
var_range(?Var, -Lo, -Up)

   Retrieve the current range of a variable (or number).

Arguments
   Var                 A variable or number
   Lo                  Lower bound
   Up                  Upper bound

Type
   library(range)

Description

  Retrieve the current range of a variable (or number).  Lo and Hi return
  the minimum and maximum (respectively) of the variable's range in
  floating point format (regardless of the variable's type).  If Var has
  not been declared before, it will be turned into an unrestricted real
  variable.  If Var is a number, that number will be returned as both Lo
  and Hi.


Fail Conditions
   Var is not a variable or number.


