Hi, Vasiliy Maxima cannot solve all ode system of second order it have some limit respect Mathematica or Maple. Read MaximaBook cap. 9 by Gilbert Urroz Best wishes Luigi Marino -------------- next part -------------- An HTML attachment was scrubbed... URL: http://www.math.utexas.edu/pipermail/maxima/attachments/20090813/3e8aed49/attachment.htm