The two final options for the
Scale widget creation method are
-bigincrement option specifies the size of jumps
when using really large numbers. The default for
-bigincrement is 0, which means it will jump in
increments that are 1/10 the total range.
represents how many digits will be used when converting from a number
to a string. The default (0) forces the Scale to use a precision that
allows for a different string for every possible value on the Scale.