Somehow the line breaks were ignored in my previous post.
The lines that gave errors in the problem were:
7 x = var("x",domain=QQ)
8 y = var("y",domain=QQ)
The error was:
ValueError: Rational Field: domain must be one of 'complex', 'real', 'positive' or 'integer'
WeBWorK Problems
Sage interactive Cell ValueError: Rational Field: domain must be one of 'complex', 'real', 'positive' or 'integer'
This forum has a limit to the number of forum postings you can make in a given time period - this is currently set at 5 posting(s) in 1 day