^ _1j3 _0.364198j0.0519151 ^ (_1)+j. 3 _0.364198j0.0519151 ^ (_1 _10 _100 )+j. 3 _0.364198j0.0519151 _4.49456e_5j6.40684e_6 _3.68285e_44j5.24977e_45 ^ (_1 _10 _100 _1000)+j. 3 |limit error | ^(_1 _10 _100 _1000)+j.3
^ _1000j3 |limit error | ^_1000j3 I mentioned a similar problem before ( http://www.jsoftware.com/pipermail/general/2006-January/026196.html ) "My favorite still is, 0 -: (0j0.5&^) _ │limit error │ 0-: (0j0.5&^)_ " ----- Original Message ---- From: Dan Bron <[EMAIL PROTECTED]> To: [email protected] Sent: Wednesday, February 13, 2008 1:45:04 PM Subject: Re: [Jprogramming] Exponenta from complex Alexandr Batalshikov: > ^ __j3 > is "limit error" but not zero? At first I thought this reduced to this (understandable) limit error: 1 o. __ |limit error | 1 o.__ But it does not. The phrase ^3j__ reduces to that error, but AFAICT ^__j3 is equivalent to: (^__) * (2 o. 3) + 0 j. 1 o. 3 0 That is, if this model of ^ for complex numbers is correct: pow_cplx =: 1x1 &$: : (dyad define) 'r i'=. |: +. y * ^. x NB. (a^b+c) = */a^b c and NB. (1x1^0 j. a) = (2 o. a) + 0 j. 1 o. a (^r) * +/ 1 0j1 * 2 1 o./ i ) Then ^__j3 should indeed be zero: pow_cplx __j3 0 -Dan -- View this message in context: http://www.nabble.com/Exponenta-from-complex-tp15458026s24193p15463034.html Sent from the J Programming mailing list archive at Nabble.com. ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
