"ShA" == Sheplyakov Alexei <varg@theor.jinr.ru> writes: >> I also have examples of the same code which may run either few >> seconds or infinity. ShA> Could you please show such an example?
I do not have a short example. What I met is a part of a rather big program (cs.MS/0512073), specifically the chunk which check conformality of different distances. It uses series expansion of a fraction of two multi-variable polynomials so it can be either gcd() or collect() which cause infinite execution, I guess. Surprisingly infinite execution occurs only on my office computer but never at home, although they both have quite similar hardware configuration (Athlons 2800 and 3000). Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv@maths.leeds.ac.uk -- www: http://maths.leeds.ac.uk/~kisilv/