Dim
    ---------------------
    Different to basic
     
     
    To allocate space i.e. Dim n% 1000 you now use the Allocate function.
     
    Use: Dim is only used for arrays in WimpBasic.
     
    Example:
    Rem Create and initialise an array.
    DIM fred(100,100)
     
    Rem Function gives the number of dimensions.
    DIM(fred())
     
    Rem Function gives the size of the n'th dimension.
    DIM(fred(),n)