The Gap value supplied will usually be rounded to the nearest `nice' value, suitable (e.g.) for generating axis labels, before use. To avoid this `nicing' you should set an explicit format for the axis using the Format(axis) or Digits/Digits(axis) attribute. The default behaviour is for the application to generate its own Gap value when required, based on the range of axis values to be represented.
KAPPA --- Kernel Application Package