> I do my symbolic math with MuPAD 3.4 instead of MathCad 7.0 but I > must be dilusional there also.
On a total tangent --- have you worked out a way of getting matrices with floating point arithmetic under MuPAD? I haven't been able to find any in the documentation. Cheers, Mark. _/~~~~~~~~\___/~~~~~~\____________________________________________________ ____/~~\_____/~~\__/~~\__________________________Mark_Phillips____________ ____/~~\_____/[EMAIL PROTECTED] ____/~~\HE___/~~\__/~~\APTAIN_____________________________________________ ____/~~\______/~~~~~~\____________________________________________________ __________________________________________________________________________ "They told me I was gullible ... and I believed them!"