Module that includes utility functions.
Includes the following function:
Functions.ABS
Functions.CEIL
Functions.FLOOR
Functions.HYPOT
Functions.MAX
Functions.MIN
Functions.NEXT_DOWN
Functions.NEXT_TOWARDS
Functions.NEXT_UP
Functions.POW
Functions.ROUND
Functions.SIGN
Functions.SQRT
Functions.TRUNCATE
Functions.ULP
Functions.WITH_SIGN