Igor Chudov wrote: > > Whils I kind of agree in general (I do numerical modeling too, for a > living), here we are essentially comparing a == a and it fails. See my > another post in this thread about GCC bug 323. > > My concern with doing what I am doing, is that if I wanted the knee to move > at glacial speed, it would shut off. > But I know that I do not need it. > Well, when comparing two floating point numbers, the comparison only shows that they are the same within the limits of the mantissa representation in that floating point format. (Of course, a double has a LOT of bits of mantissa....)
But, anyway, you used 1E-7, so with 1000 servo cycles/second, that would require moving slower than one inch every 1000 seconds to fool the comparison. That is REALLY slow! Way below "glacial" speed. Jon ------------------------------------------------------------------------------ What You Don't Know About Data Connectivity CAN Hurt You This paper provides an overview of data connectivity, details its effect on application quality, and explores various alternative solutions. http://p.sf.net/sfu/progress-d2d _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
