Carlos Simões wrote:
Unfortunately I had an accident which damaged several books including the MathCad Plus 6.0 Professional User's Guide and Reference guide!
CS
Thats bad. So you are missing a more than 20 year (?) old documentation. Sure hard to find. You may have luck finding at least user's guides for newer versions like MC2000, 2001, 11 up to 14 or 15 in pdf.