CAS computer algebra systems e^(pi *i)+ 1 actually equals a nice zero, yes it is nice OK OK OK
I do look forward to more of CAS in J. But there lurk problems in that world, too: The world's most powerful and best graphing calculator, the TI Nspire cas evaluates the integral from -1 to 1 of 1/sqrt(1-x^2) nicely as 'pi' in symbol form. then if you ask for the approximation of that 'pi' you get a number that is different from the regular 'pi' by two significant digits?! ..5862 vs ..5898 , the last figures to 14 places. A difference of -3.6e-12. J gives ..5897 931. this must make sense to some or many of you. Good luck in the move towards 'cas' by the way, this my computer does not let me type TI-Nspire followed with the capital letters CAS without dropping the line again and again and again. This too must make sense to several of you. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
