Moongold
Temperance,
Here are some links posted by Robertmealing in another thread which may interest you;
http://www.dartmouth.edu/~matc/math...nit3/unit3.html
http://www.dartmouth.edu/~matc/math...nit8/unit8.html
http://www.dartmouth.edu/~matc/math...nit9/unit9.html
MG
Here are some links posted by Robertmealing in another thread which may interest you;
http://www.dartmouth.edu/~matc/math...nit3/unit3.html
http://www.dartmouth.edu/~matc/math...nit8/unit8.html
http://www.dartmouth.edu/~matc/math...nit9/unit9.html
MG