Task

 Describe, and give a pointer to documentation on your languages use of characters beyond those of the ASCII character set in the naming of variables.
 Show how to:
 Set a variable with a name including the 'Δ', (delta character), to 1 
 Increment it
 Print its value.


Related task
 
 Case-sensitivity of identifiers


using System.Console;
 
module UnicodeVar
{
    Main() : void
    {
        mutable Δ = 1;
        Δ++;
        WriteLine($"Δ = $Δ");
    }
}