Lambda wrote: > I defined a function to raise a 2x2 matrix to nth power:
> BTW, numpy has such a function, but it doesn't support really large > number. > Does numpy has some functions that support arbitrarily large number? You can tell it to use Python instead of C integers: >>> import numpy >>> m = numpy.matrix([[1,2],[3,4]], dtype=object) >>> m**100 matrix([[2477769229755647135316619942790719764614291718779321308132883358976984999, 3611168042210422417525189130504685706095268999850398812464239094782237250], [5416752063315633626287783695757028559142903499775598218696358642173355875, 7894521293071280761604403638547748323757195218554919526829242001150340874]], dtype=object) Peter -- http://mail.python.org/mailman/listinfo/python-list