Changes in version 0.2.0.9000                      

                 Changes in version 0.2.0 (2025-10-31)                  

  - Multiplication and division between a ptvalue() and a double/integer
    value is now allowed.
    
      - The output is kept as a ptvalue() for now.
      - Multiplication and division of a ptvalue() with a negative value
        are still not allowed and will raises an error.
      - If multiplication and division with a negative value is needed,
        ptvalue() can be converted back to double values with unclass()
        or as.double().
      - Test unit have been added.

  - Other helper functions have been added in addition to invert_sign():
    
      - abs_sign() converts values to values with an 'absolute' sign
        (times or div)
      - as_times() converts values to times only
      - as_div() converts values to div only
      - Documentation for these four functions have been added and
        grouped into a single page.
      - Test units have been added.

  - More details were added in README:
    
      - About div() and times(), for creating directly PT values.
      - About abs_sign(), as_times(), and as_div()

                 Changes in version 0.1.0 (2025-08-29)                  

                     Changes in version 0.0.0.9000                      

  - Initial CRAN submission.