Thanks!
]]>How do I get more accuracy out of NIntegrate?
]]>http://maxima.sourceforge.net/documentation.html
I got
romberg(1/(cos(x)+x^2), x, 0, 100);
1.828017700397752
which is accurate. By setting rombergit to 200 and rombergtol to 1E-10.
Now you need to get a bfloat in there somehow.
]]>Thanks for the links. I will try 'em out.
]]>You should know about these:
http://eagle.cs.kent.edu/MAXIMA/maxima_21.html
http://www.csulb.edu/~woollett/
get them if you do not.
]]>