Dick Moores wrote: > I pinched it down some more (after dinner): > > >>> 1.79769313486e+308 * (1.000000000000001 ** 1160) > 1.7976931348623151e+308 > >>> 1.79769313486e+308 * (1.000000000000001 ** 1161) > 1.#INF
This looks promising: In [8]: x=1.7976931348623157e+308 In [9]: y=0.0000000000000001e+308 In [10]: x+y Out[10]: inf Courtesy numpy: In [4]: from numpy import finfo, float64 In [7]: print finfo(float64) Machine parameters for <type 'numpy.float64'> --------------------------------------------------------------------- precision= 15 resolution= 1.0000000000000001e-15 machep= -52 eps= 2.2204460492503131e-16 negep = -53 epsneg= 1.1102230246251565e-16 minexp= -1022 tiny= 2.2250738585072014e-308 maxexp= 1024 max= 1.7976931348623157e+308 nexp = 11 min= -max --------------------------------------------------------------------- Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
