There is a description of floor of complex number in "Learning J" section 20.7
Does that answer your question? Regards ----- Original Message ----- From: "Zsbán Ambrus" <[email protected]> To: "Programming forum" <[email protected]> Sent: Wednesday, February 10, 2010 2:53 PM Subject: [Jprogramming] Exact definition of tolerant floor on complex numbers > Could someone tell me what the precise definition of tolerant floor is > (or should be) on arbitrary complex arguments? > > The way J implements floor (<.) is not completely consistent, > > <.a=: _1e_14 , 100-1e_13 > _1 100 > <.a j.0 > 0 99 > > and has a shape something like this around any Gaussian integer (look > in fixed width font): > > '....@+m'{~(~.@,i.]) <. 0j0+ j./~i:1e_13j20 > .@@@@@@@@@@@@@@++++++ > ..@@@@@@@@@@@@+++++++ > ...@@@@@@@@@@++++++++ > ....@@@@@@@@+++++++++ > .....@@@@@@++++++++++ > ......@@@@+++++++++++ > .......@@@+++++++++++ > ........@@+++++++++++ > .........@+++++++++++ > ..........+++++++++++ > .....++++++++++++++++ > ....+++++++++++++++++ > ...++++++++++++++++++ > ..+++++++++++++++++++ > .++++++++++++++++++++ > +++++++++++++++++++++ > +++++++++++++++++++++ > +++++++++++++++++++++ > +++++++++++++++++++++ > +++++++++++++++++++++ > +++++++++++++++++++++ > > But that's all I know about the issue. > > Ambrus > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
